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           5               4                        3              2                                              1

     C51-M940                                                Page Index
                                                             01-COVER PAGE
                                                             02-BLOCK DIAGRAM                                                                D

                                                             03-CPU M2-1 HyperTransport
                               REV:1.0   PCB:15-K57-011000
                                         BOM:81-685-K57100   04-CPU M2-1 DDR2
                                                             05-CPU M2-3 Miscellany
                                                             06-CPU M2-4 Power and Ground
                                                             07-First Logic DDR2 DIMM
                                                             08-DDR2 Termination
                                                             09-C51G HT CPU
                                                             10-C51G HT MCP51
                                                             11-C51G PCI-E
                                                             12-C51G DAC/VGA CONN
C                                                            13-C51G P/G                                                                     C

                                                             14-MCP51G HT C51PV
                                                             15-MCP51G PCI
                                                             16-MCP51G SATA/IDE/CONN
                                                             17-MCP51G AUDIO/USB/MISC
                                                             18-MCP51G GMII
                                                             19-MCP51G P/G
                                                             21-PCI 1&2
                                                             23-LPC SIO-ITE8716F/FDD
B                                                            24-LPT / COM / PS2                                                              B

                                                             26-PWR CONN. / FNT PNL
                                                             27-CPU VCORE
                                                             30-ALC883/861/660/655 CONN.
                                                             31-RTL8100C & AC131
             Signature Date                                  32-1394 VT6308

    Designer   Eli Yang
A                                                                                                                                            A

              Cherry/Huntion                                                                Elitegroup Computer Systems
    Check       Tommy
                                                                                                     COVER PAGE
                                                                           Size    Document Number                                    Rev
                                                                                                     C51-M940                          1.0
                                                                           Date:   Thursday, March 23, 2006     Sheet   1   of   32
           5               4                        3              2                                              1
                     5                                4                                          3                                                             2                                                              1

                                                                           BLOCK DIAGRAM

D                                                                                                                                                                                                                                                        D
                                   SUPPLY            VREG
                               CONNECTOR                                              SOCKET 940
                                                                                                                       128-BIT 200/266/333/400MHZ
                                                                                          AM2                                                                                                    DDIMM1: DDR2 Socket 240P

                                                                                                                                                                                                 DDIMM2: DDR2 Socket 240P

                                                                                            HT 16X16 1GHZ

                                                            PCI EXPRESS
                                         PCI-E X16                                    NFORCE                                                           VGA CONN
                                                                                      CRUSH 51
C                                                           PCI EXPRESS               468 BGA                                                                                                                                                            C
                                         PCI-E X1

                                                                                            HT 4X4 800 MHZ

                                                                                                                                                                                     PCI 33MHZ         PCI SLOT 1

                                                                                                                                          AZAILIA / AC97           ALC883 / ALC655
                         ATA 133
                                                                                      NFORCE                                       10/100-GIGA Lan                                                     PCI SLOT 2
    PRIMARY IDE                                                                                                                                                    8100C/8110SC
                                                                                      MCP 51
                                                                                      508 BGA
    SECONDARY IDE                                                                                            X8 USB2

                         INTEGRATED SATA 1/2/3/4
    X4 - SATA CONN
                                                                                                                                                                               BACK PANEL CONN                                                           B

                                                                                                                                                                             USB2 PORTS 1-0
                                                                                                                                                                             DOUBLE STACK

    FLOPPY CONN                                                                                                                                                              USB2 PORTS 3-2
                                                                                                                                                                             X2/GBIT LAN

                                                                                                                                                                               FRONT PANEL HDR
                                       SIO                            LPC BUS 33MHZ
                                   IT8716F-L/BX                                                                                                                              USB2 PORTS 5-4
                                                                                                                               IEEE1394 / VT6308
                                                                                                                                                                             USB2 PORTS 7-6

A                                                                   4MB FLASH                                                                                                                                                                            A
                                                                                                                                                   MII / Broadcom AC131
                                                                                                                                                                                                       Elitegroup Computer Systems
                                                                                                                                                                                                       BLOCK DIAGRAM
                                                                                                                                                                                     Size    Document Number                                      Rev
                                                                                                                                                                                                               COVER PAGE                          1.0
                                                                                                                                                                                     Date:   Thursday, March 23, 2006       Sheet   2   of   32
                     5                                4                                          3                                                             2                                                              1
      8                                  7                                       6                                       5     4                                       3                   2                                        1

                    L0_CLKIN_H1   N6                                            AD5   L0_CLKOUT_H1
                                       L0_CLKIN_H(1)           L0_CLKOUT_H(1)                         L0_CLKOUT_H1   9
                    L0_CLKIN_L1   P6                                            AD4   L0_CLKOUT_L1
                                       L0_CLKIN_L(1)           L0_CLKOUT_L(1)                         L0_CLKOUT_L1   9
    VLDT_B          L0_CLKIN_H0   N3                                            AD1   L0_CLKOUT_H0
                                       L0_CLKIN_H(0)           L0_CLKOUT_H(0)                         L0_CLKOUT_H0   9
                    L0_CLKIN_L0   N2                                            AC1   L0_CLKOUT_L0
                                       L0_CLKIN_L(0)           L0_CLKOUT_L(0)                         L0_CLKOUT_L0   9
       R151   51    L0_CTLIN_H1   V4                                            Y6    L0_CTLOUT_H1
                                       L0_CTLIN_H(1)           L0_CTLOUT_H(1)                            STP2                       CPUE
       R152   51    L0_CTLIN_L1   V5                                            W6    L0_CTLOUT_L1
                                       L0_CTLIN_L(1)           L0_CTLOUT_L(1)                            STP1
                    L0_CTLIN_H0   U1                                            W2    L0_CTLOUT_H0                                          INTERNAL MISC E
                                       L0_CTLIN_H(0)           L0_CTLOUT_H(0)                         L0_CTLOUT_H0 9
D                   L0_CTLIN_L0   V1   L0_CTLIN_L(0)           L0_CTLOUT_L(0)   W3    L0_CTLOUT_L0
                                                                                                      L0_CTLOUT_L0 9          L25
                                                                                                                                     RSVD1             RSVD17   E20
                   L0_CADIN_H15                                                       L0_CADOUT_H15                                  RSVD2             RSVD18
                                  U6   L0_CADIN_H(15)      L0_CADOUT_H(15)      Y5                                            L31    RSVD3
                   L0_CADIN_L15   V6                                            Y4    L0_CADOUT_L15                           L30                               AL4
                   L0_CADIN_H14        L0_CADIN_L(15)      L0_CADOUT_L(15)            L0_CADOUT_H14                                  RSVD4             RSVD19
                                  T4   L0_CADIN_H(14)      L0_CADOUT_H(14)      AB6                                                                    RSVD20   AK4
                   L0_CADIN_L14   T5                                            AA6   L0_CADOUT_L14                           W26                               AK3
                   L0_CADIN_H13        L0_CADIN_L(14)      L0_CADOUT_L(14)            L0_CADOUT_H13                                  RSVD5             RSVD21
                                  R6   L0_CADIN_H(13)      L0_CADOUT_H(13)      AB5                                           W25    RSVD6
                   L0_CADIN_L13   T6                                            AB4   L0_CADOUT_L13                          AE27
                   L0_CADIN_H12        L0_CADIN_L(13)      L0_CADOUT_L(13)            L0_CADOUT_H12                                  RSVD7
                                  P4   L0_CADIN_H(12)      L0_CADOUT_H(12)      AD6                                           U24    RSVD8             RSVD22   F2
                   L0_CADIN_L12   P5                                            AC6   L0_CADOUT_L12                           V24                               F3
                   L0_CADIN_H11        L0_CADIN_L(12)      L0_CADOUT_L(12)            L0_CADOUT_H11                                  RSVD9             RSVD23
                                  M4   L0_CADIN_H(11)      L0_CADOUT_H(11)      AF6                                          AE28    RSVD10
                   L0_CADIN_L11   M5                                            AE6   L0_CADOUT_L11                                                             G4
                   L0_CADIN_H10        L0_CADIN_L(11)      L0_CADOUT_L(11)            L0_CADOUT_H10                                                    RSVD24
                                  L6   L0_CADIN_H(10)      L0_CADOUT_H(10)      AF5                                           Y31    RSVD11            RSVD25   G3
                   L0_CADIN_L10   M6                                            AF4   L0_CADOUT_L10                           Y30                               G5
                   L0_CADIN_H9         L0_CADIN_L(10)      L0_CADOUT_L(10)            L0_CADOUT_H9                                   RSVD12            RSVD26
                                  K4   L0_CADIN_H(9)        L0_CADOUT_H(9)      AH6                                          AG31    RSVD13
                   L0_CADIN_L9    K5                                            AG6   L0_CADOUT_L9                            V31                               AD25
                   L0_CADIN_H8         L0_CADIN_L(9)        L0_CADOUT_L(9)            L0_CADOUT_H8                                   RSVD14            RSVD27
                                  J6   L0_CADIN_H(8)        L0_CADOUT_H(8)      AH5                                           W31    RSVD15            RSVD28   AE24
                   L0_CADIN_L8    K6                                            AH4   L0_CADOUT_L8                           AF31                               AE25
                                       L0_CADIN_L(8)        L0_CADOUT_L(8)                                                           RSVD16            RSVD29
                                                                                                                                                       RSVD30   AJ18
                   L0_CADIN_H7    U3                                            Y1    L0_CADOUT_H7                           AD18                               AJ20
                   L0_CADIN_L7         L0_CADIN_H(7)           L0_CADOUT_H(7)         L0_CADOUT_L7                                   KEY1              RSVD31
                                  U2   L0_CADIN_L(7)           L0_CADOUT_L(7)   W1                                           AD19    KEY2              RSVD32   C18
                   L0_CADIN_H6    R1                                            AA2   L0_CADOUT_H6                            AE7                               C20
                   L0_CADIN_L6         L0_CADIN_H(6)           L0_CADOUT_H(6)         L0_CADOUT_L6                                   KEY3              RSVD33
                                  T1   L0_CADIN_L(6)           L0_CADOUT_L(6)   AA3                                           AE8    KEY4              RSVD34   G24
                   L0_CADIN_H5    R3                                            AB1   L0_CADOUT_H5                             H3                               G25
                   L0_CADIN_L5         L0_CADIN_H(5)           L0_CADOUT_H(5)         L0_CADOUT_L5                                   KEY5              RSVD35
                                  R2   L0_CADIN_L(5)           L0_CADOUT_L(5)   AA1                                            H4    KEY6              RSVD36   H25
                   L0_CADIN_H4    N1                                            AC2   L0_CADOUT_H4                            H20                               V29
                   L0_CADIN_L4         L0_CADIN_H(4)           L0_CADOUT_H(4)         L0_CADOUT_L4                                   KEY7              RSVD37
                                  P1   L0_CADIN_L(4)           L0_CADOUT_L(4)   AC3                                           H21    KEY8              RSVD38   W30
                   L0_CADIN_H3    L1                                            AE2   L0_CADOUT_H3
                   L0_CADIN_L3         L0_CADIN_H(3)           L0_CADOUT_H(3)         L0_CADOUT_L3
                                  M1   L0_CADIN_L(3)           L0_CADOUT_L(3)   AE3
                   L0_CADIN_H2                                                        L0_CADOUT_H2                                  Socket_M2
C                  L0_CADIN_L2
                                       L0_CADIN_H(2)           L0_CADOUT_H(2)   AF1
                                                                                AE1   L0_CADOUT_L2                                                                                                                                                           C
                   L0_CADIN_H1         L0_CADIN_L(2)           L0_CADOUT_L(2)         L0_CADOUT_H1
                                  J1   L0_CADIN_H(1)           L0_CADOUT_H(1)   AG2
                   L0_CADIN_L1    K1                                            AG3   L0_CADOUT_L1
                   L0_CADIN_H0         L0_CADIN_L(1)           L0_CADOUT_L(1)         L0_CADOUT_H0
                                  J3   L0_CADIN_H(0)           L0_CADOUT_H(0)   AH1
                   L0_CADIN_L0    J2                                            AG1   L0_CADOUT_L0
                                       L0_CADIN_L(0)           L0_CADOUT_L(0)

                                                                                                                                                                                                                        L0_CLKIN_H1     9
                                                                                                                                                                                                                        L0_CLKIN_L1     9
                                                                                                                                                                                                                        L0_CLKIN_H0     9
                                                                                                                                                                                                                        L0_CLKIN_L0     9
B                                                                                                                                                                                                L0_CTLIN_L0

                                                                                                                                                                                                                        L0_CADIN_L[0..15]    9
                                                                                                                                                                                                                        L0_CADIN_H[0..15]    9
                                                                                                                                                                                                                        L0_CADOUT_H[0..15]       9
                                                                                                                                                                                                                        L0_CADOUT_L[0..15]       9

A                                                                                                                                                                                                                                                            A

                                                                                                                                                                                  Elitegroup Computer Systems
                                                                                                                                                                           Size    Document Number                                                    Rev
                                                                                                                                                                                                     CPU M2-1 HyperTransport                           1.0
                                                                                                                                                                           Date:   Thursday, March 23, 2006           Sheet     3       of       32
    8                7                           6                                    5                                   4                   3                                         2                                   1

                                                                         CPUB                                                                            CPUC

                               MA0_CLK_H[2..0]                                       MEMORY INTERFACE A                                                              MEMORY INTERFACE B
                                                     MA0_CLK_H2   AG21                                           AE14   MA_DATA63   MB0_CLK_H2    AJ19                                               AH13   MB_DATA63
        7,8 MA0_CLK_H[2..0]                          MA0_CLK_L2           MA0_CLK_H(2)             MA_DATA(63)          MA_DATA62   MB0_CLK_L2            MB0_CLK_H(2)                MB_DATA(63)           MB_DATA62
                                                                  AG20    MA0_CLK_L(2)             MA_DATA(62)   AG14                             AK19    MB0_CLK_L(2)                MB_DATA(62)    AL13
D       7,8 MA0_CLK_L[2..0]
                               MA0_CLK_L[2..0]       MA0_CLK_H1
                                                                          MA0_CLK_H(1)             MA_DATA(61)   AG16
                                                                                                                                                          MB0_CLK_H(1)                MB_DATA(61)    AL15
                               MA0_CS_L[1..0]        MA0_CLK_H0           MA0_CLK_L(1)             MA_DATA(60)          MA_DATA59   MB0_CLK_H0            MB0_CLK_L(1)                MB_DATA(60)           MB_DATA59
          7,8 MA0_CS_L[1..0]                                       U27    MA0_CLK_H(0)             MA_DATA(59)   AD13                              U31    MB0_CLK_H(0)                MB_DATA(59)    AF13
                                                     MA0_CLK_L0    U26                                           AE13   MA_DATA58   MB0_CLK_L0     U30                                               AG13   MB_DATA58
                               MA0_ODT0                                   MA0_CLK_L(0)             MA_DATA(58)          MA_DATA57                         MB0_CLK_L(0)                MB_DATA(58)           MB_DATA57
           7,8     MA0_ODT0                                                                        MA_DATA(57)   AG15                                                                 MB_DATA(57)    AL14
                                                     MA0_CS_L1    AC25                                           AE16   MA_DATA56   MB0_CS_L1     AE30                                               AK15   MB_DATA56
                                                     MA0_CS_L0            MA0_CS_L(1)              MA_DATA(56)          MA_DATA55   MB0_CS_L0             MB0_CS_L(1)                 MB_DATA(56)           MB_DATA55
                                                                  AA24    MA0_CS_L(0)              MA_DATA(55)   AG17                             AC31    MB0_CS_L(0)                 MB_DATA(55)    AL16
                                                                                                                 AE18   MA_DATA54                                                                    AL17   MB_DATA54
                                                     MA0_ODT0                                      MA_DATA(54)          MA_DATA53   MB0_ODT0                                          MB_DATA(54)           MB_DATA53
                                                                  AC28    MA0_ODT(0)               MA_DATA(53)   AD21                             AD29    MB0_ODT(0)                  MB_DATA(53)    AK21
                                                                                                                 AG22   MA_DATA52                                                                    AL21   MB_DATA52
                                                                                                   MA_DATA(52)          MA_DATA51                                                     MB_DATA(52)           MB_DATA51
                                                                  AE20    MA1_CLK_H(2)             MA_DATA(51)   AE17                             AL19    MB1_CLK_H(2)                MB_DATA(51)    AH15
                                                                  AE19                                           AF17   MA_DATA50                 AL18                                               AJ16   MB_DATA50
                                                                          MA1_CLK_L(2)             MA_DATA(50)          MA_DATA49                         MB1_CLK_L(2)                MB_DATA(50)           MB_DATA49
                                                                   G20    MA1_CLK_H(1)             MA_DATA(49)   AF21                              C19    MB1_CLK_H(1)                MB_DATA(49)    AH19
                                                                   G21                                           AE21   MA_DATA48                  D19                                               AL20   MB_DATA48
                               MA_CAS_L                                   MA1_CLK_L(1)             MA_DATA(48)          MA_DATA47                         MB1_CLK_L(1)                MB_DATA(48)           MB_DATA47
           7,8     MA_CAS_L                                        V27    MA1_CLK_H(0)             MA_DATA(47)   AF23                             W29     MB1_CLK_H(0)                MB_DATA(47)    AJ22
                               MA_WE_L                             W27                                           AE23   MA_DATA46                 W28                                                AL22   MB_DATA46
           7,8     MA_WE_L     MA_RAS_L                                   MA1_CLK_L(0)             MA_DATA(46)          MA_DATA45                         MB1_CLK_L(0)                MB_DATA(46)           MB_DATA45
           7,8     MA_RAS_L                                                                        MA_DATA(45)   AJ26                                                                 MB_DATA(45)    AL24
                                                                  AD27                                           AG26   MA_DATA44                 AE29                                               AK25   MB_DATA44
                               MA_BANK[2..0]                              MA1_CS_L(1)              MA_DATA(44)          MA_DATA43                         MB1_CS_L(1)                 MB_DATA(44)           MB_DATA43
          7,8 MA_BANK[2..0]                                       AA25    MA1_CS_L(0)              MA_DATA(43)   AE22                             AB31    MB1_CS_L(0)                 MB_DATA(43)    AJ21
                                                                                                                 AG23   MA_DATA42                                                                    AH21   MB_DATA42
                                                                                                   MA_DATA(42)          MA_DATA41                                                     MB_DATA(42)           MB_DATA41
                                                                  AC27    MA1_ODT(0)               MA_DATA(41)   AH25                             AD31    MB1_ODT(0)                  MB_DATA(41)    AH23
                               MA_CKE0                                                                           AF25   MA_DATA40                                                                    AJ24   MB_DATA40
           7,8     MA_CKE0                                                                         MA_DATA(40)          MA_DATA39                                                     MB_DATA(40)           MB_DATA39
                                                                                                   MA_DATA(39)   AJ28                                                                 MB_DATA(39)    AL27
                               MA_ADD[15..0]         MA_CAS_L     AB25                                           AJ29   MA_DATA38   MB_CAS_L      AC29                                               AK27   MB_DATA38
          7,8 MA_ADD[15..0]                          MA_WE_L              MA_CAS_L                 MA_DATA(38)          MA_DATA37   MB_WE_L               MB_CAS_L                    MB_DATA(38)           MB_DATA37
                                                                  AB27    MA_WE_L                  MA_DATA(37)   AF29                             AC30    MB_WE_L                     MB_DATA(37)    AH31
                               MA_DQS_H[8..0]        MA_RAS_L     AA26                                           AE26   MA_DATA36   MB_RAS_L      AB29                                               AG30   MB_DATA36
         7 MA_DQS_H[8..0]                                                 MA_RAS_L                 MA_DATA(36)          MA_DATA35                         MB_RAS_L                    MB_DATA(36)           MB_DATA35
                                                                                                   MA_DATA(35)   AJ27                                                                 MB_DATA(35)    AL25
                               MA_DQS_L[8..0]        MA_BANK2      N25                                           AH27   MA_DATA34   MB_BANK2       N31                                               AL26   MB_DATA34
         7 MA_DQS_L[8..0]                            MA_BANK1             MA_BANK(2)               MA_DATA(34)          MA_DATA33   MB_BANK1              MB_BANK(2)                  MB_DATA(34)           MB_DATA33
                                                                   Y27    MA_BANK(1)               MA_DATA(33)   AG29                             AA31    MB_BANK(1)                  MB_DATA(33)    AJ30
                               MA_DM[8..0]           MA_BANK0                                                           MA_DATA32   MB_BANK0                                                                MB_DATA32
C          7     MA_DM[8..0]                                      AA27    MA_BANK(0)               MA_DATA(32)   AF27
                                                                                                                 E29    MA_DATA31
                                                                                                                                                  AA28    MB_BANK(0)                  MB_DATA(32)    AJ31
                                                                                                                                                                                                     E31    MB_DATA31                            C
                               MA_DATA[63..0]                                                      MA_DATA(31)          MA_DATA30                                                     MB_DATA(31)           MB_DATA30
         7 MA_DATA[63..0]                                         L27     MA_CKE(1)                MA_DATA(30)   E28                              M31     MB_CKE(1)                   MB_DATA(30)    E30
                                                     MA_CKE0      M25                                            D27    MA_DATA29   MB_CKE0       M29                                                B27    MB_DATA29
                               MA_CHECK[7..0]                             MA_CKE(0)                MA_DATA(29)          MA_DATA28                         MB_CKE(0)                   MB_DATA(29)           MB_DATA28
         7 MA_CHECK[7..0]                                                                          MA_DATA(28)   C27                                                                  MB_DATA(28)    A27
                                                     MA_ADD15      M27                                           G26    MA_DATA27   MB_ADD15       N28                                               F29    MB_DATA27
                                                     MA_ADD14             MA_ADD(15)               MA_DATA(27)          MA_DATA26   MB_ADD14              MB_ADD(15)                  MB_DATA(27)           MB_DATA26
                                                                   N24    MA_ADD(14)               MA_DATA(26)   F27                               N29    MB_ADD(14)                  MB_DATA(26)    F31
                               MB0_CLK_H[2..0]       MA_ADD13     AC26                                           C28    MA_DATA25   MB_ADD13      AE31                                               A29    MB_DATA25
        7,8 MB0_CLK_H[2..0]                          MA_ADD12             MA_ADD(13)               MA_DATA(25)          MA_DATA24   MB_ADD12              MB_ADD(13)                  MB_DATA(25)           MB_DATA24
                                                                   N26    MA_ADD(12)               MA_DATA(24)   E27                               N30    MB_ADD(12)                  MB_DATA(24)    A28
                               MB0_CLK_L[2..0]       MA_ADD11      P25                                           F25    MA_DATA23   MB_ADD11       P29                                               A25    MB_DATA23
        7,8 MB0_CLK_L[2..0]                          MA_ADD10             MA_ADD(11)               MA_DATA(23)          MA_DATA22   MB_ADD10              MB_ADD(11)                  MB_DATA(23)           MB_DATA22
                                                                   Y25    MA_ADD(10)               MA_DATA(22)   E25                              AA29    MB_ADD(10)                  MB_DATA(22)    A24
                               MB0_CS_L[1..0]        MA_ADD9       N27                                           E23    MA_DATA21   MB_ADD9        P31                                               C22    MB_DATA21
          7,8 MB0_CS_L[1..0]                         MA_ADD8              MA_ADD(9)                MA_DATA(21)          MA_DATA20   MB_ADD8               MB_ADD(9)                   MB_DATA(21)           MB_DATA20
                                                                   R24    MA_ADD(8)                MA_DATA(20)   D23                               R29    MB_ADD(8)                   MB_DATA(20)    D21
                               MB0_ODT0              MA_ADD7       P27                                           E26    MA_DATA19   MB_ADD7        R28                                               A26    MB_DATA19
           7,8     MB0_ODT0                          MA_ADD6              MA_ADD(7)                MA_DATA(19)          MA_DATA18   MB_ADD6               MB_ADD(7)                   MB_DATA(19)           MB_DATA18
                                                                   R25    MA_ADD(6)                MA_DATA(18)   C26                               R31    MB_ADD(6)                   MB_DATA(18)    B25
                                                     MA_ADD5       R26                                           G23    MA_DATA17   MB_ADD5        R30                                               B23    MB_DATA17
                                                     MA_ADD4              MA_ADD(5)                MA_DATA(17)          MA_DATA16   MB_ADD4               MB_ADD(5)                   MB_DATA(17)           MB_DATA16
                                                                   R27    MA_ADD(4)                MA_DATA(16)   F23                               T31    MB_ADD(4)                   MB_DATA(16)    A22
                                                     MA_ADD3       T25                                           E22    MA_DATA15   MB_ADD3        T29                                               B21    MB_DATA15
                                                     MA_ADD2              MA_ADD(3)                MA_DATA(15)          MA_DATA14   MB_ADD2               MB_ADD(3)                   MB_DATA(15)           MB_DATA14
                                                                   U25    MA_ADD(2)                MA_DATA(14)   E21                               U29    MB_ADD(2)                   MB_DATA(14)    A20
                                                     MA_ADD1       T27                                           F17    MA_DATA13   MB_ADD1        U28                                               C16    MB_DATA13
                                                     MA_ADD0              MA_ADD(1)                MA_DATA(13)          MA_DATA12   MB_ADD0               MB_ADD(1)                   MB_DATA(13)           MB_DATA12
                                                                   W24    MA_ADD(0)                MA_DATA(12)   G17                              AA30    MB_ADD(0)                   MB_DATA(12)    D15
                                                                                                                 G22    MA_DATA11                                                                    C21    MB_DATA11
                                                     MA_DQS_H7                                     MA_DATA(11)          MA_DATA10   MB_DQS_H7                                         MB_DATA(11)           MB_DATA10
                                                                  AD15    MA_DQS_H(7)              MA_DATA(10)   F21                              AK13    MB_DQS_H(7)                 MB_DATA(10)    A21
                               MB_CAS_L              MA_DQS_L7    AE15                                           G18    MA_DATA9    MB_DQS_L7     AJ13                                               A17    MB_DATA9
           7,8     MB_CAS_L    MB_WE_L               MA_DQS_H6            MA_DQS_L(7)               MA_DATA(9)          MA_DATA8    MB_DQS_H6             MB_DQS_L(7)                  MB_DATA(9)           MB_DATA8
           7,8     MB_WE_L                                        AG18    MA_DQS_H(6)               MA_DATA(8)   E17                              AK17    MB_DQS_H(6)                  MB_DATA(8)    A16
                               MB_RAS_L              MA_DQS_L6    AG19                                           G16    MA_DATA7    MB_DQS_L6     AJ17                                               B15    MB_DATA7
           7,8     MB_RAS_L                          MA_DQS_H5            MA_DQS_L(6)               MA_DATA(7)          MA_DATA6    MB_DQS_H5             MB_DQS_L(6)                  MB_DATA(7)           MB_DATA6
                                                                  AG24    MA_DQS_H(5)               MA_DATA(6)   E15                              AK23    MB_DQS_H(5)                  MB_DATA(6)    A14
                               MB_BANK[2..0]         MA_DQS_L5    AG25                                           G13    MA_DATA5    MB_DQS_L5     AL23                                               E13    MB_DATA5
          7,8 MB_BANK[2..0]                          MA_DQS_H4            MA_DQS_L(5)               MA_DATA(5)          MA_DATA4    MB_DQS_H4             MB_DQS_L(5)                  MB_DATA(5)           MB_DATA4
                                                                  AG27    MA_DQS_H(4)               MA_DATA(4)   H13                              AL28    MB_DQS_H(4)                  MB_DATA(4)    F13
                                                     MA_DQS_L4    AG28                                           H17    MA_DATA3    MB_DQS_L4     AL29                                               C15    MB_DATA3
B          7,8     MB_CKE0
                               MB_CKE0               MA_DQS_H3     D29
                                                                                                    MA_DATA(2)   E16    MA_DATA2    MB_DQS_H3      D31
                                                                                                                                                                                       MB_DATA(2)    A15    MB_DATA2                             B
                                                     MA_DQS_L3     C29                                           E14    MA_DATA1    MB_DQS_L3      C31                                               A13    MB_DATA1
                               MB_ADD[15..0]         MA_DQS_H2            MA_DQS_L(3)               MA_DATA(1)          MA_DATA0    MB_DQS_H2             MB_DQS_L(3)                  MB_DATA(1)           MB_DATA0
          7,8 MB_ADD[15..0]                                        C25    MA_DQS_H(2)               MA_DATA(0)   G14                               C24    MB_DQS_H(2)                  MB_DATA(0)    D13
                                                     MA_DQS_L2     D25                                                              MB_DQS_L2      C23
                               MB_DQS_H[8..0]        MA_DQS_H1            MA_DQS_L(2)                                   MA_DQS_H8   MB_DQS_H1             MB_DQS_L(2)                                       MB_DQS_H8
         7 MB_DQS_H[8..0]                                          E19    MA_DQS_H(1)             MA_DQS_H(8)    J28                               D17    MB_DQS_H(1)                 MB_DQS_H(8)    J31
                                                     MA_DQS_L1     F19                                           J27    MA_DQS_L8   MB_DQS_L1      C17                                               J30    MB_DQS_L8
                               MB_DQS_L[8..0]        MA_DQS_H0            MA_DQS_L(1)             MA_DQS_L(8)                       MB_DQS_H0             MB_DQS_L(1)                 MB_DQS_L(8)
         7 MB_DQS_L[8..0]                                          F15    MA_DQS_H(0)                                                              C14    MB_DQS_H(0)
                                                     MA_DQS_L0     G15                                           J25    MA_DM8      MB_DQS_L0      C13                                               J29    MB_DM8
                               MB_DM[8..0]                                MA_DQS_L(0)                MA_DM(8)                                             MB_DQS_L(0)                    MB_DM(8)
           7     MB_DM[8..0]                         MA_DM7                                                             MA_CHECK7   MB_DM7                                                                  MB_CHECK7
                                                                  AF15    MA_DM(7)                MA_CHECK(7)    K25                              AJ14    MB_DM(7)                    MB_CHECK(7)    K29
                               MB_DATA[63..0]        MA_DM6       AF19                                           J26    MA_CHECK6   MB_DM6        AH17                                               K31    MB_CHECK6
         7 MB_DATA[63..0]                            MA_DM5               MA_DM(6)                MA_CHECK(6)           MA_CHECK5   MB_DM5                MB_DM(6)                    MB_CHECK(6)           MB_CHECK5
                                                                  AJ25    MA_DM(5)                MA_CHECK(5)    G28                              AJ23    MB_DM(5)                    MB_CHECK(5)    G30
                               MB_CHECK[7..0]        MA_DM4       AH29                                           G27    MA_CHECK4   MB_DM4        AK29                                               G29    MB_CHECK4
         7 MB_CHECK[7..0]                            MA_DM3               MA_DM(4)                MA_CHECK(4)           MA_CHECK3   MB_DM3                MB_DM(4)                    MB_CHECK(4)           MB_CHECK3
                                                                   B29    MA_DM(3)                MA_CHECK(3)    L24                               C30    MB_DM(3)                    MB_CHECK(3)    L29
                                                     MA_DM2        E24                                           K27    MA_CHECK2   MB_DM2         A23                                               L28    MB_CHECK2
                                                     MA_DM1               MA_DM(2)                MA_CHECK(2)           MA_CHECK1   MB_DM1                MB_DM(2)                    MB_CHECK(2)           MB_CHECK1
                                                                   E18    MA_DM(1)                MA_CHECK(1)    H29                               B17    MB_DM(1)                    MB_CHECK(1)    H31
                                                     MA_DM0        H15                                           H27    MA_CHECK0   MB_DM0         B13                                               G31    MB_CHECK0
                                                                          MA_DM(0)                MA_CHECK(0)                                             MB_DM(0)                    MB_CHECK(0)

                                                                         Socket_M2                                                                       Socket_M2

A                                                                                                                                                                                                                                                A

                                                                                                                                                                              Elitegroup Computer Systems
                                                                                                                                                                       Size    Document Number                                            Rev
                                                                                                                                                                                                 CPU M2-2 DDR2                             1.0
                                                                                                                                                                       Date:   Thursday, March 23, 2006         Sheet   4       of   32
    8                                           7                                           6                                            5                                              4                                           3                                                2                                                   1

D       +2.5V_VDDA for CPU PLL                                                                                                                                                                                                                   CPU_VID[4..0]
                                                                                                                                                                                                                                                                           CPU_VID[4..0]       27                                                             D

                                +12V                     VCC3                                                   +2.5V_VDDA
    VREF25 R93                                                                                                                                   Width:50mil and Long:500mil                                                                                                             V_DIMM

              10K               4    U7A                                                                                           L27                                                                                      MISC                                         V_DIMM
          1         2       3                                 Q21                                                            1             2                             CPU_VDDA                         C10
                                +                                                                                                                                                                                VDDA1
                                           1        G         2N7002-S                                                           FB-120-08-L                                                              D10
                                                                                                                                               C190          C194       C195                                     VDDA2

                                                                                                                                                                                         CLKIN_H           A8                                                                  R131 R182 R184
                                     AZ324M-AS                                                                                                 4.7u-16V-08   3300P      .22u-25VY        CLKIN_L                 CLKIN_H
                                                                 +2.5V_VDDA                                                                                                                                B8

                                                                                                                                                                                                                 CLKIN_L                                                       300       300     300
                                                                                                                                                                                       CPU_ALL_PWROK       C9                                    D2      CPU_VID5                                         CPU_VID5             TP2
                                                                             +2.5V_VDDA@105mA                                                           9 CPU_ALL_PWROK                                          PWROK                  VID(5)
                                                                                                                                                                                       CPU_LDTSTOP-        D8                                    D1      CPU_VID4
                                                                                                                                                        9 CPU_LDTSTOP-                                           LDTSTOP_L              VID(4)
                                                                                                                                                                                       CPU_HT_RESET-       C7                                    C1      CPU_VID3
                                                                                                                                                        9 CPU_HT_RESET-                                          RESET_L                VID(3)
                                                          1                                                                                                                                                                             VID(2)   E3      CPU_VID2
                                                              EC24                                                                                                                     CPU_PRESENT_L      AL3                                    E2      CPU_VID1
                                                              100u-16V-LF                                                                                                                                        CPU_PRESENT_L          VID(1)           CPU_VID0


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