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asus_m50s_x55s_rev_2.0_sch


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                     5                                  4                                3                                2                                                           1




    M50S / X55S
    BLOCK DIAGRAM                                               CPU
                                                                                                                              Clock Generator                        Discharge Circuit
                                                                                                                                                                                                       Page 57
                                                                                                                               ICS ICS9LPR363
                                                               MEROM
                                                                                                                                                 Page 29
                                                                                                                                                                         Reset Circuit
                                                                             Page 3~5                                                                                                                  Page 32
D                                                                                                                                                                                                                           D
                                                                                                                              Thermal Sensor
     LCD Panel                                                                                                                 Maxim MAX6657                             Sequnce Logic
                                                                                                                                                 Page 50                                               Page 68
           Page 45

       CRT                                                                                                                      PWM Fan                                      DC Conn.
           Page 46                MXM                       North Bridge                                                                         Page 50                                               Page 60
                                                             Intel 965PM                     DDR2 So-DIMM
      TV-Out                                                                                               Page 7~9            Skew Holes                                Battery Conn.
                                              Page 70
           Page 47                                                         Page 10~16                                                            Page 65                                               Page 60

       HDMI
           Page 48


                                 ODD                                                            MiniCard
                                              Page 51                                             WLAN
C
                                                                                                                                                                                  Power                                     C


                                                                                                            Page 53
                                 HDD                                                                                                                                               VCORE
                                              Page 51                                           MiniCard                                                                                           Page 80
                                                                                                  Robson
       1394
                         CardReader 1394                                                                    Page 58                                                                System
           Page 41
                            Ricoh R5C833                                                                                                                                                           Page 81

     Cardreader                           Page 40~41
                                                                                                GigaLAN
                                                                                                                                                                           1.5VS & 1.05VS
           Page 42                                                                             Marvell 88E8055        Transformer         RJ45/RJ11
                                                            South Bridge                                    Page 33           Page 34            Page 34
                                                                                                                                                                                                   Page 82
                                TPM 1.2                         ICH8-M
                                              Page 62                                                                                                                             DDR & VTT
                                                                                                 eSATA                                                                                             Page 83
                           Debug Conn.                                                        JMicron JMB360
                                              Page 44                                                       Page 66                                                                +1.25VS
B                                                                                                                                                                                                                           B

     Touchpad                                                                                                                                                                                      Page 84

          Page 31
                                   EC                                                         ExpressCard
                                                                                                            Page 43                                                                Charger
                                ITE IT8752E
     Keyboard                                 Page 30
                                                                                                                               USB/eSATA                                                           Page 88
                                                                                                                                                 Page 66
          Page 31                                                                                                                                                                   Detect
                          CIR           SPI ROM
                            Page 31           Page 30
                                                                                                USB Port                          MiniCard                                                         Page 90
                                                                                                            Page 45                     WWAN
                                                                                                                                                                                  Load Switch
                                                                                                                                                 Page 67
                            Azalia MDC                                                          USB Port                                                                                           Page 91
                                              Page 35                                                       Page 65
                                                                                                                                  MiniCard                                   Power Protect
     Audio Amp
                           Azalia Codec                                                         USB Port                            TV Tuner                                                       Page 92
          Page 37
                           Realtek ALC888S                                                                  Page 65                              Page 64

       Jack                                   Page 36
A

          Page 95
                                                                                               Fingerprint                        Bluetooth                                                                                 A


                                                                                                            Page 63                              Page 61
                          Array Mic.DSP
     Array Mic                                                                               CMOS Camera
                          Fortemedia FM2010                                                                                                                                         Title : Block Diagram
          Page 45                                                                                           Page 45
                                              Page 38                       Page 20~23                                                          ASUSTeK COMPUTER INC. NB1          Engineer:      John Hung
                                                                                                                                                 Size     Project Name                                                Rev
                                                                                                                                                 Custom                                                               2.0
                                                                                                                                               Date: Monday, September 03, 2007           Sheet    1     of      95
                     5                                  4                                3                                2                                                           1
                    5                                          4                                         3                                     2                                                       1




    ICH8-M GPIO SETTING                                  EC IT8752E GPIO SETTING                                                                   965GM/PM co-layout option:
    Pin        Pin Name          Signal Name     Type    Pin       Pin Name   Signal Name    Type   Pin          Pin Name   Signal Name   Type
    AG12   BM_BUSY#/GPIO0        PM_BMBUSY#       I      28    PWM0/GPA0      PWR_LED_UP#     O     105      CLKRUN#/GPH0   PM_CLKRUN#     I/O     965PM
    AJ8    TACH1/GPIO1           BT_DECT#         I      29    PWM1/GPA1      CHG_LED_UP#     O     106      CRX1/GPH1      3G_ON#         O
                                                                                                                                                    Change:
    F8     PIRQE#/GPIO2          PCI_INTE#        I/OD   32    PWM2/GPA2                            107      CTX1/GPH2      3G_LED_ON#     O         U1001 to 965PM, U3601 to ALC888S
D                                                                                                                                                                                                                                         D
    G11    PIRQF#/GPIO3          PCI_INTF#        I/OD   33    PWM3/GPA3                            108      GPH3           BAT_LEARN      I/O       R1213~R1219 to 0ohm
                                                                                                                                                     C1406, C1501~C1504, C1506~C1507, C1510, C1514 to 0ohm
    F12    PIRQG#/GPIO4          PCI_INTG#        I/OD   34    PWM4/GPA4      LCD_BL_PWM      O     109      GPH4
    B3     PIRQH#/GPIO5          PCI_INTH#        I/OD   35    PWM5/GPA5      FAN_PWM         O     110      GPH5           NUM_LED        O        Mount:
                                                                                                                                                     D4801~D4803
    AJ9    TACH2/GPIO6                                   36    PWM6/GPA6                            111      GPH6           CAP_LED        O
                                                                                                                                                     F4801
    AH9    TACH3/GPIO7           WLAN_LED_ON      O      38    PWM7/GPA7                            74       ADC0/GPI0      NV_OVERT#      I         J4801, J7001
    AE16   GPIO8                 EXT_SMI#         I      122   RXD/GPB0       CHG_EN#         O     75       ADC1/GPI1      SUS_PWRGD      I         H7001~H7004
                                                                                                                                                     Q4801
    AG19   WOL_EN/GPIO9                                  123   TXD/GPB1       PRECHG          O     76       ADC2/GPI2      ALL_SYS_PWRGD I          R1112~R1117, R1203~R1212, R1502, R2910, R3618~R3620, R4801~R4804
    AJ24   CLGPIO1/GPIO10                                139   CTX0/GPB2                            77       ADC3/GPI3      CPU_PWRGD      I         RX2901~RX2902, RX4801~RX4810
                                                                                                                                                     CX1201~CX1232
    AG22   SMBALERT#/GPIO11      SMB_ALERT#       I      124   SMCLK0/GPB3    SMB0_CLK        I/O   78       ADC4/GPI4      PWR_MON        I
    AC19   GPIO12                EXT_SCI#         I      125   SMDAT0/GPB4    SMB0_DAT        I/O   79       ADC5/GPI5      ALS_DA         I        Un-mount:
                                                                                                                                                     R1202, R1401~R1403, R1501, R1503~R1505, R2909, R3621, R7001~R7008
    AH21   GLAN_DOCK#/GPIO13                             142   GA20/GPB5      A20GATE         O     80       ADC6/GPI6
                                                                                                                                                     RN7001~RN7011
    AF22   CLGPIO2/GPIO14                                4     KBRST#/GPB6    RC_IN#          O     81       ADC7/GPI7                               RNX1201, RNX2901, RNX2915
    AE20   STP_PCI#/GPIO15       STP_PCI#         I/O    126   GPB7           PM_RSMRST#      O     84       DAC0/GPJ0      EC_CLK_EN                L1501~L1505
                                                                                                                                                     C1404~C1405, C1407~C1409, C1505, C1509, C1511~C1513
    AJ14   DPRSLPVR/GPIO16       PM_DPRSLPVR      O      133   CRX0/GPC0      CRX0            I     85       DAC1/GPJ1      PM_PWROK                 CE1404, CE1501~CE1503
    AG8    TACH0/GPIO17          WLAN_ON#         O      129   SMCLK1/GPC1    SMB1_CLK        I/O   86       DAC1/GPJ2
C                                                                                                                                                                                                                                         C
    AH12   GPIO18                                        130   SMDAT1/GPC2    SMB1_DAT        I/O   87       DAC1/GPJ3
    AJ10   GPIO19/SATA1GP                                64    GPC3           PM_PWRBTN#      O     88       DAC1/GPJ4                             965GM
    AE11   GPIO20                BT_LED_ON        O      136   WUI2/GPC4      AC_IN_OC#       I     89       DAC1/GPJ5
                                                                                                                                                    Change:
    AJ12   SATA0GP/GPIO21                                65    GPC5           OP_SD#          O     15       GPK0                                    U1001 to 965GM
    AG10   SCLOCK/GPIO22                                 140   WUI3/GPC6      BAT1_IN_OC#     I     16       GPK1                                    R1213~R1218 to 150ohm
                                                                                                                                                     R1219 to 1.3Kohm
    E6     LDRQ1#/GPIO23                                 20    GPC7           RFON_SW#        I     17       GPK2
    AJ27   CLGPIO0/GPIO24                                22    WUI0/GPD0      PWRLIMIT#       I     18       GPK3                                   Un-mount:
                                                                                                                                                     D4801~D4803
    AG18   STP_CPU#/GPIO25       STP_CPU#         O      25    WUI1/GPD1      PM_SUSC#        I     48       GPK4
                                                                                                                                                     F4801
    AH27   S4_STATE#/GPIO26                              26    WUI4/GPD2      BUF_PLT_RST#    I     49       GPK5                                    J4801, J7001
    AH25   QRT_STATE0/GPIO27     BT_ON#           O      27    ECSCI#/GPD3    EXT_SCI#        O     62       GPK6                                    H7001~H7004
                                                                                                                                                     Q4801
    AD16   QRT_STATE1/GPIO28     CB_SD#           O      19    GPD4           EXT_SMI#        O     63       GPK7                                    R1112~R1117, R1203~R1212, R1502, R2910, R3618~R3620, R4801~R4804
    AG17   OC#5/GPIO29           INT_USB_OC#      I      37    GPD5           LCD_BACKOFF#    O     90       GPL0                                    RX2901~RX2902, RX4801~RX4810
                                                                                                                                                     CX1201~CX1232
    AD12   OC#6/GPIO30           INT_USB_OC#      I      53    TACH0 / GPD6   FAN0_TACH       I     91       GPL1
    AJ18   OC#7/GPIO31           INT_USB_OC#      I      54    GPD7                                 92       GPL2                                   Mount:
                                                                                                                                                     R1202, R1401~R1403, R1501, R1503~R1505, R2909, R3621, R7001~R7008
    AH11   CLKRUN#/GPIO32        PM_CLKRUN#       O      23    GPE0           VSUS_ON         O     93       GPL3
                                                                                                                                                     RN7001~RN7011
B   AE10   AZ_DOCK_EN#/GPIO33                            94    GPE1           SUSC_EC#        O     119      GPL4                                    RNX1201, RNX2901, RNX2915                                                            B


    AG14   AZ_DOCK_RST#/GPIO34                           95    GPE2           SUSB_EC#        O     120      GPL5                                    L1501~L1505
                                                                                                                                                     C1404~C1409, C1501~C1507, C1509~C1514
    AG13   SATACLKREQ#/GPIO35                            96    GPE3           CPU_VRON        O     134      GPL6                                    CE1404, CE1501~CE1503
    AF11   SATA2GP/GPIO36        EMAIL_LED#       O      141   PWRSW/GPE4     PWR_SW#         I     135      GPL7
    AG11   SATA3GP/GPIO37        PCB_ID0          I      39    WUI5/GPE5      BAT2_IN_OC#     I
    AF9    SLOAD/GPIO38          PCB_ID1          I      21    GPE6           LID_SW#         I
    AJ11   SDATAOUT0/GPIO39      PCB_ID2          I      24    GPE7           INSTANT_ON#     I
    AG16   OC#1/GPIO40           USB_CON01_OC#    I      97    PS2CLK0/GPF0
    AG15   OC#2/GPIO41           USB_CON23_OC#    I      98    PS2DAT0/GPF1   COLOREN#        I
    AE15   OC#3/GPIO42           USB_CON23_OC#    I      99    PS2CLK1/GPF2   MARATHON#       I
    AF15   OC#4/GPIO43           NEWCARD_OC#      I      100   PS2DAT1/GPF3   DISTP#          I
    AD10   SATAOUT1/GPIO48                               101   PS2CLK2/GPF4   TP_CLK          I/O
    AG29   CPUPWRGD/GPIO49       H_PWRGD          O      102   PS2DAT2/GPF5   TP_DAT          I/O
    E18    REQ1#/GPIO50          PCI_REQ#1        I/O    131   SMCLK2/GPF6    THRO_CPU        O
    C18    GNT1#/GPIO51                                  132   SMDAT2/GPF7    TP_LED          O
A   B19    REQ2#/GPIO52          PCI_REQ#2        I/O    118   WUI7/GPG0                                                                                                                                                                  A

    F18    GNT2#/GPIO53                                  121   GPG1           PM_SUSB#        I
    A11    REQ3#/GPIO54          PCI_REQ#3        I/O    112   GPG2
    C10    GNT3#/GPIO55                                  116   GPG6
                                                                                                                                                                                                     Title : System Setting
                                                                                                                                                                  ASUSTeK COMPUTER INC. NB1         Engineer:      John Hung
                                                                                                                                                                   Size     Project Name                                            Rev
                                                                                                                                                                   Custom                                                           2.0
                                                                                                                                                                 Date: Monday, September 03, 2007          Sheet    2   of     95
                    5                                          4                                         3                                     2                                                       1
                 5                                                          4                                                                              3                                                                              2                                                                          1


                                                                                                                                                                                                                                                                                                                              Main Board




    10    H_A#[16:3]                        U0301A                                                                                                                                10         H_D#[15:0]                                       U0301B                                                          H_D#[47:32]    10
                            H_A#3     J4                              H1                           H_ADS#         10                                                                                                    H_D#0      E22                                      Y22     H_D#32
                            H_A#4           A[3]#            ADS#                                                                                                                                                       H_D#1                 D[0]#               D[32]#            H_D#33
D                                     L5    A[4]#            BNR#     E2                           H_BNR#         10                                                                                                               F24        D[1]#               D[33]#    AB24                                                                           D
                            H_A#5     L4                              G5                                                       +VCCP                                                                                    H_D#2      E26                                      V24     H_D#34
                                            A[5]#            BPRI#                                 H_BPRI#        10                                                                                                                          D[2]#               D[34]#
                            H_A#6     K5                                                                                                                                                                                H_D#3      G22                                      V26     H_D#35
                            H_A#7           A[6]#                                                                                                                                                                       H_D#4                 D[3]#               D[35]#            H_D#36
                                      M3    A[7]#          DEFER#     H5                           H_DEFER# 10                                                                                                                     F23        D[4]#               D[36]#    V23
                            H_A#8     N2                              F21                          H_DRDY# 10                                                                                                           H_D#5      G25                                      T22     H_D#37
                            H_A#9           A[8]#           DRDY#                                                                       R0301                                                                           H_D#6                 D[5]#               D[37]#            H_D#38
                                      J1    A[9]#           DBSY#     E1                           H_DBSY# 10                                                                                                                      E25        D[6]#               D[38]#    U25
                            H_A#10    N3                                                                                                56Ohm                                                                           H_D#7      E23                                      U23     H_D#39
                            H_A#11          A[10]#                                                                                                                                                                      H_D#8                 D[7]#               D[39]#            H_D#40
                                      P5    A[11]#            BR0#    F1                           H_BR0#         10                                                                                                               K24        D[8]#               D[40]#    Y25
                            H_A#12    P2                                                                                                                                                                                H_D#9      G24                                      W22     H_D#41
                            H_A#13          A[12]#                          H_IERR#                                                                                                                                     H_D#10                D[9]#               D[41]#            H_D#42
                                      L2    A[13]#           IERR#    D20                                                                                                                                                          J24        D[10]#              D[42]#    Y23
                            H_A#14    P4                              B3                                                                                                                                                H_D#11     J23                                      W24     H_D#43
                                            A[14]#            INIT#                                H_INIT#        20                                                                                                                          D[11]#              D[43]#
                            H_A#15    P1                                                                                                                                                                                H_D#12     H22                                      W25     H_D#44
                            H_A#16          A[15]#                                                                                                                                                                      H_D#13                D[12]#              D[44]#            H_D#45
                                      R1    A[16]#           LOCK#    H4                           H_LOCK#        10                                                                                                               F26        D[13]#              D[45]#    AA23
    10    H_ADSTB#0                   M1                                                                                                                                                                                H_D#14     K22                                      AA24    H_D#46
                                            ADSTB[0]#                                                                                                                                                                   H_D#15                D[14]#              D[46]#            H_D#47
    10   H_REQ#[4:0]                                       RESET#     C1                           H_CPURST# 10                                                                                                                    H23        D[15]#              D[47]#    AB25
                            H_REQ#0   K3                              F3                           H_RS#0  10                                                                     10     H_DSTBN#0                                 J26                                      Y26                               H_DSTBN#2 10
                            H_REQ#1         REQ[0]#         RS[0]#                                                                                                                                                                            DSTBN[0]#        DSTBN[2]#
                                      H2    REQ[1]#         RS[1]#    F4                           H_RS#1  10                                                                     10     H_DSTBP#0                                 H26        DSTBP[0]#        DSTBP[2]#    AA26                              H_DSTBP#2 10
                            H_REQ#2   K2                              G3                           H_RS#2  10                                                                     10      H_DINV#0                                 H25                                      U22                               H_DINV#2 10
                            H_REQ#3         REQ[2]#         RS[2]#                                                                                                                                                                            DINV[0]#          DINV[2]#
                                      J3    REQ[3]#         TRDY#     G2                           H_TRDY# 10
                            H_REQ#4   L1    REQ[4]#                                                                                                                               10     H_D#[31:16]                                                                                                          H_D#[63:48]    10
    10   H_A#[35:17]                                                  G6                           H_HIT#         10                                                                                                    H_D#16     N22                                      AE24    H_D#48
                            H_A#17                            HIT#                                                                                                                                                      H_D#17                D[16]#              D[48]#            H_D#49
                                       Y2   A[17]#           HITM#    E4                           H_HITM#        10                                                                                                               K25        D[17]#              D[49]#    AD24
                            H_A#18     U5                                                                                                                                                                               H_D#18     P26                                      AA21    H_D#50
                            H_A#19          A[18]#                                                                                                                                                                      H_D#19                D[18]#              D[50]#            H_D#51
                                       R3   A[19]#          BPM[0]#   AD4                                                                                                                                                          R23        D[19]#              D[51]#    AB22
                            H_A#20                                                                                                                                                                                      H_D#20                                                      H_D#52
                            H_A#21
                                       W6
                                       U4
                                            A[20]#          BPM[1]#   AD3
                                                                      AD1
                                                                                                                                                               AGTL+ I/O                                                H_D#21
                                                                                                                                                                                                                                   L23
                                                                                                                                                                                                                                   M24
                                                                                                                                                                                                                                              D[20]#              D[52]#    AB21
                                                                                                                                                                                                                                                                            AC26    H_D#53
                                            A[21]#          BPM[2]#                                                                                                                                                                           D[21]#              D[53]#
                            H_A#22
                            H_A#23
                                       Y5   A[22]#          BPM[3]#   AC4                                                                                      Voltage                                                  H_D#22
                                                                                                                                                                                                                        H_D#23
                                                                                                                                                                                                                                   L22        D[22]#              D[54]#    AD20    H_D#54
                                                                                                                                                                                                                                                                                    H_D#55
                                       U1   A[23]#           PRDY#    AC2                                                                                                                                                          M23        D[23]#              D[55]#    AE22
                            H_A#24     R4   A[24]#           PREQ#    AC1   H_PREQ#                                                                            Reference                                                H_D#24     P25        D[24]#              D[56]#    AF23    H_D#56
                            H_A#25     T5                             AC5   H_TCK                                                                                                                                       H_D#25     P23                                      AC25    H_D#57
                            H_A#26          A[25]#             TCK          H_TDI                                                                                                                                       H_D#26                D[25]#              D[57]#            H_D#58
C
                                       T3   A[26]#              TDI   AA6                                                                                                                                                          P22        D[26]#              D[58]#    AE21                                                                           C
                            H_A#27     W2                             AB3                                                      +VCCP                           +VCCP                                                    H_D#27     T24                                      AD21    H_D#59
                            H_A#28          A[27]#             TDO          H_TMS                                                                                                                                       H_D#28                D[27]#              D[59]#            H_D#60
                                       W5   A[28]#             TMS    AB5                                                                                                                                                          R24        D[28]#              D[60]#    AC22
                            H_A#29     Y4                             AB6   H_TRST#                                                                                                                                     H_D#29     L25                                      AD23    H_D#61
                            H_A#30          A[29]#           TRST#                                                                                                                                                      H_D#30                D[29]#              D[61]#            H_D#62
                                       U2   A[30]#            DBR#    C20                                                                                                                                                          T25        D[30]#              D[62]#    AF22
                            H_A#31     V4                                                                                               R0302                      R0304                                                H_D#31     N25                                      AC23    H_D#63
                            H_A#32          A[31]#                                                                                      1KOhm                      1KOhm                                                                      D[31]#              D[63]#
                                       W3   A[32]#                                                                                                                                10     H_DSTBN#1                                 L26        DSTBN[1]#        DSTBN[3]#    AE25                              H_DSTBN#3 10
                            H_A#33    AA4                THERMAL                                                                                                   1%             10     H_DSTBP#1                                 M26                                      AF24                              H_DSTBP#3 10
                            H_A#34          A[33]#                                                                                                                                                                                            DSTBP[1]#        DSTBP[3]#
                                      AB2   A[34]#                                                                                                                                10      H_DINV#1                                 N24        DINV[1]#          DINV[3]#    AC20                              H_DINV#3 10
                            H_A#35    AA3                             D21   H_PROCHOT_S#
                                            A[35]#       PROCHOT#                                                                                                   GTL_REF                                                                                                         H_COMP0
    10   H_ADSTB#1                     V1   ADSTB[1]#      THRMDA     A24                          CPU_THRM_DA 50                                                                                                                  AD26       GTLREF             COMP[0]    R26
                                                                      B25                          CPU_THRM_DC 50                                                                                                       CPU_T1      C23                 MISC                U26     H_COMP1
                                                           THRMDC                                                                                                                                                       CPU_T2                TEST1              COMP[1]            H_COMP2
    20     H_A20M#                    A6    A20M#                                                                                                                                                                                   D25       TEST2              COMP[2]    AA1
                                      A5                              C7                                                                                           R0305                           T0305        1                   C24                                     Y1      H_COMP3
    20     H_FERR#                          FERR#       THERMTRIP#                                 PM_THRMTRIP# 11,32                                                                                                                         TEST3              COMP[3]
    20    H_IGNNE#                    C4                                                                                                                           2KOhm                                                           AF26
                                            IGNNE#                                                                                                                 1%                              T0306                                      TEST4
                                                                                                                                                                                                                1                   AF1       TEST5             DPRSTP#     E5                                H_DPRSTP# 11,20,80
    20   H_STPCLK#                    D5    STPCLK#                                                                                                                                                                                 A26       TEST6              DPSLP#     B5                                H_DPSLP# 20
    20      H_INTR                    C6                  H CLK                            1   T0303                                                                                                                                                                        D24                               H_DPWR# 10
                                            LINT0                                                                                                                                                                                                                DPWR#
    20       H_NMI                    B4                              A22                          CLK_CPU_BCLK 29                                                                29     CPU_BSEL0                                  B22                                     D6                                H_PWRGD 20
                                            LINT1           BCLK[0]                                                                                                                                                                           BSEL[0]          PWRGOOD
    20      H_SMI#                    A3    SMI#            BCLK[1]   A21                          CLK_CPU_BCLK# 29                                                               29     CPU_BSEL1                                  B23       BSEL[1]              SLP#     D7                                H_CPUSLP# 10
                                                                                           1                                                                                      29     CPU_BSEL2                                  C21                                     AE6                               PM_PSI# 80
                                                                                               T0304                                                                                                                                          BSEL[2]               PSI#
                                       M4   RSVD1
                                       N5                                                                                                                                                                                                     SOCKET478B
                                            RSVD2
                                       T2   RSVD3
                                       V3   RSVD4
                                       B2   RSVD5                                                                                                                                      BCLK        FSB         BSEL2BSEL1BSEL0
                                       C3   RSVD6
                T0301   1              D2                                                                                                                                              166         667              0     1        1
                                            RSVD7
                                      D22   RSVD8
                                       D3   RSVD9                                                                                                                                      200         800              0     1        0
                T0302   1              F6   RSVD10
B                                                                                                                                                                                                                                                                                                                                                          B

                                                                      Default Strapping When XDP/ITP Not Used                                                                                              CPU Test Pin                                                AGTL+ I/O Buffer Compensation
                                            SOCKET478B
                                                                                                                               +VCCP                                                                           R0306 @                                                                          R0308
                                                                                                                                                                                                               1KOhm 1%                                                                         27.4Ohm 1%
                                                                            H_PREQ#   R0312    1             2    54.9Ohm 1%                                                                               2          1   CPU_T1                                                    H_COMP0     1        2
                                                                            H_TDI     R0313    1             2    150Ohm 1%
                                                                            H_TMS     R0314    1             2    39Ohm
                                                                            H_TCK     R0315    1             2    27.4Ohm 1%

                                                                            H_TRST#   R0303    1             2 649Ohm 1%
                                                                                                                                                                                                               R0307 @                                                                          R0309
                                                                                                                                                                                                               1KOhm 1%                                                                         54.9Ohm 1%
                                                                                                                                                                                                           2          1   CPU_T2                                                    H_COMP1     1        2




                                                                                                                                                                                                                                                                                                R0310
                                                                                                                                                                                                                                                                                                27.4Ohm 1%
                                                                                                                                                                                                                                                                                    H_COMP2     1        2



                                                                                                                                             D0301   @
                                                                                                                                             RB751V-40
                                                                                                                 H_PROCHOT_S#                1         2        PWRLIMIT# 30,88                                                                                                                 R0311
                                                                                                                                                                                                                                                                                                54.9Ohm 1%
                                                                                                                                                                                                                                                                                    H_COMP3     1        2
A                                                                                                                                   3                                                                                                                                                                                                                      A
                                                                                                                                D           Q0301
                                                                                                                                            2N7002

                                                                                                                                            11
                                                                                                                                                                THRO_CPU 30
                                                                                                                                        G
                                                                                                                                S 2


                                                                                                                                                                                                                                                                                                                  Title : CPU_Merom(Host)
                                                                                                                                                                                                                                                                            ASUSTeK COMPUTER INC. NB1           Engineer:           John Hung
                                                                                                                                                                                                                                                                             Size     Project Name                                                   Rev
                                                                                                                                                                                                                                                                             Custom                                                                  2.0
                                                                                                                                                                                                                                                                           Date: Monday, September 03, 2007                 Sheet    3   of     95
                 5                                                          4                                                                              3                                                                              2                                                                          1
    5                                4                                                                  3             2                                                            1


                                                                                                                                                                                         Main Board



                                                                                                                                U0301D
                                                                                                                           A4   VSS1          VSS82     P6
                                                                                                                           A8   VSS2          VSS83     P21
                                                                                                                          A11   VSS3          VSS84     P24
D                                                                                                                         A14   VSS4          VSS85     R2                                                            D
                                                                                                                          A16   VSS5          VSS86     R5
        +VCORE                                                        +VCORE
                                                                               Max: 44A                                   A19   VSS6          VSS87     R22
                                                                                                                          A23   VSS7          VSS88     R25
                        U0301C                                                                                            AF2                           T1
                                                                                                                                VSS8          VSS89
                   A7   VCC1              VCC68    AB20                                                                    B6   VSS9          VSS90     T4
                   A9   VCC2              VCC69    AB7                                                                     B8   VSS10         VSS91     T23
                  A10   VCC3              VCC70    AC7                                                                    B11   VSS11         VSS92     T26
                  A12   VCC4              VCC71    AC9                                                                    B13   VSS12         VSS93     U3
                  A13   VCC5              VCC72    AC12                                                                   B16   VSS13         VSS94     U6
                  A15   VCC6              VCC73    AC13                                                                   B19   VSS14         VSS95     U21
                  A17   VCC7              VCC74    AC15                                                                   B21   VSS15         VSS96     U24
                  A18   VCC8              VCC75    AC17                                                                   B24   VSS16         VSS97     V2
                  A20   VCC9              VCC76    AC18                                                                    C5   VSS17         VSS98     V5
                   B7   VCC10             VCC77    AD7                                                                     C8   VSS18         VSS99     V22
                   B9   VCC11             VCC78    AD9                                                                    C11   VSS19        VSS100     V25
                  B10   VCC12             VCC79    AD10                                                                   C14   VSS20        VSS101     W1
                  B12   VCC13             VCC80    AD12                                                                   C16   VSS21        VSS102     W4
                  B14   VCC14             VCC81    AD14                                                                   C19   VSS22        VSS103     W23
                  B15   VCC15             VCC82    AD15                                                                    C2   VSS23        VSS104     W26
                  B17   VCC16             VCC83    AD17                                                                   C22   VSS24        VSS105     Y3
                  B18   VCC17             VCC84    AD18                                                                   C25   VSS25        VSS106     Y6
                  B20   VCC18             VCC85    AE9                                                                     D1   VSS26        VSS107     Y21
                   C9   VCC19             VCC86    AE10                                                                    D4   VSS27        VSS108     Y24
                  C10   VCC20             VCC87    AE12                                                                    D8   VSS28        VSS109     AA2
                  C12                              AE13                                                                   D11                           AA5
                        VCC21             VCC88                                                                                 VSS29        VSS110
                  C13   VCC22             VCC89    AE15                                                                   D13   VSS30        VSS111     AA8
                  C15   VCC23             VCC90    AE17                                                                   D16   VSS31        VSS112     AA11
                  C17   VCC24             VCC91    AE18                                                                   D19   VSS32        VSS113     AA14
                  C18   VCC25             VCC92    AE20                                                                   D23   VSS33        VSS114     AA16
C
                   D9   VCC26             VCC93    AF9                                                                    D26   VSS34        VSS115     AA19                                                          C
                  D10   VCC27             VCC94    AF10                                                                    E3   VSS35        VSS116     AA22
                  D12   VCC28             VCC95    AF12                                                                    E6   VSS36        VSS117     AA25
                  D14   VCC29             VCC96    AF14                                                                    E8   VSS37        VSS118     AB1
                  D15   VCC30             VCC97    AF15                                                                   E11   VSS38        VSS119     AB4
                  D17   VCC31             VCC98    AF17
                                                                      +VCCP
                                                                               1.00V~1.10V                                E14   VSS3



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