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         1                          2                             3                          4                    5                    6                              7                                        8




                                                                                             ( P4 LGA775P Processor with DDR2 SDRAM Mainboard )

                                                                                                 Rev:3.0        Page Title of Schematic :
A   945P-A/ 945PL-A
    Schematics Version History Table :
                                                                                                                Title
                                                                                                                Cover Sheet
                                                                                                                                                   Page
                                                                                                                                                    1
                                                                                                                                                           Title
                                                                                                                                                          PCI-E 88E8052 GIGA LAN
                                                                                                                                                                                                                        Page
                                                                                                                                                                                                                             36
                                                                                                                                                                                                                                      A




    Circuit Ver. PCB Ver. Total Page                          Modified Page(s)                        Date      System Block Diagram                2     PCI-E SERIAL ATA SiI3132_1                                         37
        A          A               38                                                               01/20/'05   P4 LGA775P Part A                   3     PCI-E SERIAL ATA SiI3132_2                                         38
                                                                                                                P4 LGA775P Part B                   4     PCI EXPRESS EX2                                                    39
        B          B               39                                                               03/24/'05
                                                                                                                P4 LGA775P Part C                   5
        1.0        1.0             39                                                               04/18/'05
                                                                                                                P4 LGA775P Part D                   6
        1.1        1.1             39                                                               05/17/'05
                                                                                                                P4 LGA775P Part E                   7
        1.2        1.2    3    4
                                   39
                                    6   7
                                                 ADD R594                                           02/21/06
                                                                                                                Clock Generator(ICS954127)          8
        3.0        3.0        15   22       29   Modify for Support Conroe and PWM RT8802A          06/05/06
                                                                                                                I-LP(MCH)Part A & E & F             9
B
                                                                                                                I-LP(MCH)Part D                     10                                                                                B

                                                                                                                I-LP(MCH)Part B & C                 11
                                                                                                                I-LP(MCH)Part G                     12
                                                                                                                DDIMM 1&2 ( DDR SDRAMs )            13
                                                                                                                DDIMM 3&4 ( DDR SDRAMs )            14
                                                                                                                DDR & V_FSB_VTT Power               15
                                                                                                                PCI EXPRESS 16-PORT                 16
                                                                                                                ICH7 Part A & D (SATA-CONNECTOR)    17
                                                                                                                ICH7 Part B & C (RTC)               18
                                                                                                                ICH7 Part E & F (POWER & GND)       19
                                                                                                                IDE1 Connector                      20
C
                                                                                                                USB/FWH                             21                                                                                C




                                                                                                                LPC_FDD/KB/M                        22
                                                                                                                I/O Ports                           23
                                                                                                                H/W Monitor                         24
                                                                                                                Azalia Codec                        25
                                                                                                                Audio Interface                     26
                                                                                                                ATX Power & Front Panel             27
                                                                                                                LAN                                 28
                                                                                                                Vcore DC-DC                         29
                                                                                                                MIS DC-DC(DUAL & VDDQ)              30
D
                                                                                                                PCI Slot 1&2                        31                                                                                D


                                                                                                                Back I/O                            32
                                                                                                                PCI Slot 3                          33                             Elitegroup Computer Systems
                                                                                                                VT6308 (1394)                       34       Title

                                                                                                                PCIE X1                             35                                      Cover Sheet
                                                                                                                                                             Size     Document Number                                         Rev
                                                                                                                                                             Custom                          945P-A/945PL-A                     3.0
                                                                                                                                                             Date:        Tuesday, June 27, 2006   Sheet   1       of   40
         1                          2                             3                          4                    5                    6                              7                                        8
                         A                                                   B                                              C                                            D                                                  E



    DEVICE      IDSEL        INT#       REQ#      GNT#                                                                                                                             PCB : 305 x 244 mm ; 4 layers
     PCI1         17     C/D/E/F      PREQ-0     PGNT-0
                                                                                                           INTEL
     PCI2         18     D/E/F/G      PREQ-1     PGNT-1
                                                                                                        P4 Processor
     PCI3         19     E/F/G/H      PREQ-2     PGNT-2
     1394         20          G       PREQ-3     PGNT-3                                                PSC, Smithfield -
     LAN          21          F       PREQ-4     PGNT-4
                                                                                                         LGA 775 pin
4                                                                                                                                                                                                                                                       4




                                                          BW :4.1GB/s @ FSB : 533MHz & Freq : 133MHz
                                                          BW : 6.4GB/s @ FSB : 800MHz & Freq : 200MHz
                                                                                                                                                              BW : 10.7GB/s @ DDR2 :533/667MHz
                                                          BW : 6.4GB/s @ FSB : 1066MHz & Freq : 266MHz

                                                                                                                                                           DDIMM1: DDR2 Socket 240P
                                                                                                            INTEL                                            DDIMM2 : DDR2 Socket 240P
                                                            PCIEx16                                         i945P
                                                                                                                                                           DDIMM3: DDR2 Socket 240P
                                                                                                       1210pin FC-BGA                                        DDIMM4 : DDR2 Socket 240P
                                                                                                                   BW : 2GB/s (Support Lsoch)
                                                                                                                                                 USBLAN                                          SATA5 7Pin
3
                                                                                            USB V2.0                            M88E8053            RJ45              Sil3132                                                                           3



                                   USB1         USB2         USB3           USB4                                                                                                                   SATA6 7pin
                                  2 ports      2 ports      2 ports        2 ports                         INTEL
                                                                            Up to Ultra ATA/100            ICH7R                                                                       PCIEx1 PCIEX2
                                                          IDE1 40pin               One IDE Channel      652pin EBGA              BW : 133MB/s @Freq : 33MHz
             Line in
                                        Audio Codec                   Azalia I/F
             Line out

             Mic in                         ALC880
       Center/Bass out                                                              intel                        LPC bus
                                                                                    FWH
           Surround                                                              32pin PLCC
                                     SATA1 7Pin
       Side-Surround
2
                                       SATA2 7pin                                                            Super I/O           VIA 1394        10/100           PCI1 Slot 120pin @ AD17                                                               2
                                                                                                                                                 Lan
                                     SATA3 7Pin           BW : 150MB/s                                       W83627THF                                               PCI2 Slot 120pin @ AD18
                                       SATA4 7pin                                               TPM 1.1      128pin PQFP                                                 PCI3 Slot 120pin @ AD19



                                                                                                                                                 USBLAN
                                                                                                                                  CONN/             RJ45
                                                                                                                                  HEADER




1                                                                                                                                                                                                                                                       1




                                                                                                                                                                                                     Elitegroup Computer Systems
                                                                                                                                                                                       Title
                                                                                                                                                                                                          System Block Diagram
                                                                                                                                                                                       Size     Document Number                                 Rev
                                                                                                                                                                                       Custom                  945P-A/945PL-A                     3.0

                                                                                                                                                                                       Date:     Tuesday, June 27, 2006   Sheet   2   of   40
                         A                                                   B                                              C                                            D                                                  E
                             5                                                                                          4                                                                                             3                                                                                        2                                                                                               1

                                                                                                                                    STP1 Testing Point
                                                                                                                    ICT_775_E23 1
                                                                                                                                    STP2 Testing Point
                                                                                                                    ICT_775_E7 1
                                                                                                                                    STP3                                                                                                                   R690     0-O
                                                                                                                                                                                                                                     VTT_OUT_R
                                                                                                                    ICT_775_F23 1
                                                                                                                                    Testing Point                                                                                                          R691     0
                                                                                                                                                                                                                                    V_FSB_VTT




                                                                                                                                                                                                                                                                               2
                                                                                                                                                                                                                                                                               4
                                                                                                                                                                                                                                                                               6
                                                                                                                                                                                                                                                                               8




                                                                                                                                                                                                                                                                                                           2
                                                                                                                                                                                                                                                                                                           4
                                                                                                                                                                                                                                                                                                           6
                                                                                                                                                                                                                                                                                                           8
                                           R664       1K-04-X       LG-775-J3                                       ICT_775_F6  R523         51-1-O
                                                                                                                          COMP8                                                                                                                                                           RN42                     RN1
                                           R665       1K-04-X                                                                                                      R1       51-1
                                                                                                                                                                                                                                                                                         680-8P4R              680-8P4R
                                           R666       61-04           H_BPM2_1                                                                                     R4       51-1




                                                                                                                                                                                                                                                                               1
                                                                                                                                                                                                                                                                               3
                                                                                                                                                                                                                                                                               5
                                                                                                                                                                                                                                                                               7




                                                                                                                                                                                                                                                                                                           1
                                                                                                                                                                                                                                                                                                           3
                                                                                                                                                                                                                                                                                                           5
                                                                                                                                                                                                                                                                                                           7
             VTT_OUT_L
                                                                                                                                                   COMP6           R5       49.9-1                                           VTT_OUT_R                            VID0
            4 CPU_GTLREF3                                                                                                                                                                                                                                                                                                                      CPUVID0         29
                                                                                                                                                                                                                  H_VCCPLL




                                                                                                          CPU_GTLREF3
                            MCH_GTLREF_CPU                                                                                                                                               FORCEPH_N
      9 MCH_GTLREF_CPU                                                                                                                                                                                                       FORCEPH_N        15,29
                                                                                                                                                                                         VID0                                                                     VID1
                                                                                                                                                                                                                                                                                                                                               CPUVID1         29




                                                                                                                        LG-775-J3
                            VSSSEN                               VSS_SENSE_AN6                                                                                                           VID1
D   4,29 VSSSEN                          R7                  0                                                                                                                           VID2                                                                                                                                                                                                                                                    D

                            VCCSEN                               VCC_SENSE_AN5                                                                                                           VID3                                                                     VID2
    4,29 VCCSEN                                                                                                                                                                                                                                                                                                                                CPUVID2         29
                                         R9                  0                                                                                                                           VID4
             VTT_OUT_R                                         COMP7                                                                                                                     VID5
                                         R11                 49.9-1                                                                                                                      VID6                                                                     VID3
                                                                                                                                                                                         VID7                                                                                                                                                  CPUVID3         29
                                                  0.1U/25V
                                           BC1                                                                                                                                         VID_SELECT
                                                                                                                                                                                                                             VID_SELECT       29
                                                      CPU1A                                                                                                                                                                                                       VID4




                                                                                                                                                           AM2

                                                                                                                                                           AM3



                                                                                                                                                           AM5
                                                                                                                                                           AM7
                                                                       AC4



                                                                       AH2
                                                                       AN5
                                                                       AN6




                                                                                                                                                           AN7
                                                                       AE3
                                                                       AE4
                                                                       AE6




                                                                       G10




                                                                       AK6




                                                                                                                                                           AK4
                                                                       D14
                                                                       D16




                                                                       D23
                                                                                                                                                                                                                                                                                                                                               CPUVID4         29




                                                                       A20




                                                                       E23
                                                                       E24




                                                                       B13




                                                                                                                                                           AL5

                                                                                                                                                           AL6

                                                                                                                                                           AL4
                                                                       F23
                                                                       F29




                                                                       W1



                                                                       G6
                                                                       C9
                                                                       D1




                                                                       N4
                                                                       N5
                                                      LGA775




                                                                       E5
                                                                       E6
                                                                       E7




                                                                       P5
                                                                       V1

                                                                       Y3
                                                                       F6


                                                                       J3
                                                                                                                                                                                                                                                                  VID5




                                                                        RESERVED0
                                                                        RESERVED1
                                                                        RESERVED2
                                                                        RESERVED3
                                                                        RESERVED4
                                                                        RESERVED5
                                                                        RESERVED7
                                                                        RESERVED8
                                                                        RESERVED9
                                                                       RESERVED10
                                                                       RESERVED11
                                                                       RESERVED12
                                                                       RESERVED13
                                                                       RESERVED14
                                                                       RESERVED15
                                                                       RESERVED16
                                                                       RESERVED17
                                                                       RESERVED18
                                                                       RESERVED19
                                                                       RESERVED20
                                                                       RESERVED21
                                                                       RESERVED22
                                                                       RESERVED25
                                                                       RESERVED26
                                                                       RESERVED27
                                                                       RESERVED28
                                                                       RESERVED30
                                                                       RESERVED31
                                                                       RESERVED32
                                                                       RESERVED33
                                                                       RESERVED34
                                                                       RESERVED35




                                                                                                                                                                  VID0
                                                                                                                                                                  VID1
                                                                                                                                                                  VID2
                                                                                                                                                                  VID3
                                                                                                                                                                  VID4
                                                                                                                                                                  VID5
                                                                                                                                                                  VID6
                                                                                                                                                                  VID7
                                                                                                                                                           VID_SELECT
                                                                                                                                                                                                                                                                                                                                               CPUVID5         29
                                 H_D0               B4                                                                                                                                       L5         H_A3
        9   H_D0                                         D0                                                                                                                         A3                                           H_A3                9
                                 H_D1               C5                                                                                                                                       P6         H_A4
        9   H_D1                                         D1                                                                                                                         A4                                           H_A4                9
                                 H_D2               A4                                                                                                                                       M5         H_A5                                                      VID6
        9   H_D2                                         D2                                                                                                                         A5                                           H_A5                9                                                                                         CPUVID6         29
                                 H_D3               C6                                                                                                                                       L4         H_A6
        9   H_D3                                         D3                                                                                                                         A6                                           H_A6                9
                                 H_D4               A5                                                                                                                                       M4         H_A7
        9   H_D4                                         D4                                                                                                                         A7                                           H_A7                9
                                 H_D5               B6                                                                                                                                       R4         H_A8                                                      VID7
        9   H_D5                                         D5                                                                                                                         A8                                           H_A8                9                                                                                         CPUVID7         29
                                 H_D6               B7                                                                                                                                       T5         H_A9
        9   H_D6                                         D6                                                                                                                         A9                                           H_A9                9
                                 H_D7               A7                                                                                                                                       U6         H_A10
        9   H_D7                                         D7                                                                                                                        A10                                           H_A10               9
                                 H_D8              A10                                                                                                                                       T4         H_A11
        9   H_D8                                         D8                                                                                                                        A11                                           H_A11               9
                                 H_D9              A11                                                                                                                                       U5         H_A12
        9   H_D9                                         D9                                                                                                                        A12                                           H_A12               9
                                 H_D10             B10                                                                                                                                       U4         H_A13
        9   H_D10                                        D10                                                                                                                       A13                                           H_A13               9
                                 H_D11             C11                                                                                                                                       V5         H_A14
        9   H_D11                                        D11                                                                                                                       A14                                           H_A14               9
                                 H_D12              D8                                                                                                                                       V4         H_A15
        9   H_D12                                        D12                                                                                                                       A15                                           H_A15               9
                                 H_D13             B12                                                                                                                                       W5         H_A16
        9   H_D13                                        D13                                                                                                                       A16                                           H_A16               9
                                 H_D14             C12                                                                                                                                       AB6        H_A17
        9   H_D14                                        D14                                                                                                                       A17                                           H_A17               9
                                 H_D15             D11                                                                                                                                       W6         H_A18
        9   H_D15                                        D15                                                                                                                       A18                                           H_A18               9
                                 H_D16              G9                                                                                                                                       Y6         H_A19
        9   H_D16                                        D16                                                                                                                       A19                                           H_A19               9                                                                                                                    VTT_OUT_R
                                 H_D17              F8                                                                                                                                       Y4         H_A20
        9   H_D17                                        D17                                                                                                                       A20                                           H_A20               9
                                 H_D18              F9                                                                                                                                       AA4        H_A21
        9   H_D18                                        D18                                                                                                                       A21                                           H_A21               9
                                 H_D19              E9                                                                                                                                       AD6        H_A22
        9   H_D19                                        D19                                                                                                                       A22                                           H_A22               9
                                 H_D20              D7                                                                                                                                       AA5        H_A23
        9   H_D20                                        D20                                                                                                                       A23                                           H_A23               9
                                 H_D21             E10                                                                                                                                       AB5        H_A24
        9   H_D21                                        D21                                                                                                                       A24                                           H_A24               9
                                 H_D22             D10                                                                                                                                       AC5        H_A25                                                                                                        H_BPM0              ER1                 51-04
        9   H_D22                                        D22                                                                                                                       A25                                           H_A25               9
                                 H_D23             F11                                                                                                                                       AB4        H_A26
        9   H_D23                                        D23                                                                                                                       A26                                           H_A26               9
                                 H_D24             F12                                                                                                                                       AF5        H_A27                                                                                                        H_BPM1              ER2                 51-04
        9   H_D24                                        D24                                                                                                                       A27                                           H_A27               9
                                 H_D25             D13                                                                                                                                       AF4        H_A28
        9   H_D25                                        D25                                                                                                                       A28                                           H_A28               9
C                                H_D26             E13                                                                                                                                       AG6        H_A29                                                                                                        H_BPM2              ER3                 51-04                                                                               C
        9   H_D26                                        D26                                                                                                                       A29                                           H_A29               9
                                 H_D27             G13                                                                                                                                       AG4        H_A30
        9   H_D27                                        D27                                                                                                                       A30                                           H_A30               9
                                 H_D28             F14                                                                                                                                       AG5        H_A31                                                                                                        H_BPM3              ER4                 51-04
        9   H_D28                                        D28                                                                                                                       A31                                           H_A31               9
                                 H_D29             G14                                                                                                                                       AH4
        9   H_D29                H_D30                   D29                                                                                                                       A32                                                                                                                               H_BPM4              ER5                 51-04
        9   H_D30                                  F15   D30                                                                                                                       A33       AH5
                                 H_D31             G15                                                                                                                                       AJ5
        9   H_D31                H_D32                   D31                                                                                                                       A34                                                                                                                               H_BPM5              ER6                 51-04
        9   H_D32                                  G16   D32                                                                                                                       A35       AJ6
                                 H_D33             E15
        9   H_D33                H_D34                   D33
        9   H_D34                                  E16   D34
                                 H_D35             G18                                                                                                                                       AJ2        H_BPM0
        9   H_D35                H_D36                   D35                                                                                                                    BPM0                    H_BPM1
        9   H_D36                                  G17   D36                                                                                                                    BPM1         AJ1
                                 H_D37                                                                                                                                                                  H_BPM2
        9   H_D37                H_D38
                                                   F17
                                                   F18
                                                         D37                                                                                                                    BPM2         AD2
                                                                                                                                                                                             AG2        H_BPM3
                                                                                                                                                                                                                                                                                                       Please BPM TERMINATION NEAR to CPU
        9   H_D38                H_D39                   D38                                                                                                                    BPM3                    H_BPM4
        9   H_D39                                  E18   D39                                                                                                                    BPM4         AF2
                                 H_D40             E19                                                                                                                                       AG3        H_BPM5
        9   H_D40                H_D41                   D40                                                                                                                    BPM5
        9   H_D41                                  F20   D41
                                 H_D42                                                                                                                                                                                          STP5
        9   H_D42                                  E21   D42
                                 H_D43                                                                                                                                                                  ICT_775_J16             STP6                                                                           TESTHI12            R16              51-1     VTT_OUT_L
        9   H_D43                                  F21   D43                                                                                                                     DP0         J16                              1                                                                                                                                                  VTT_OUT_L
                                 H_D44                                                                                                                                                                  ICT_775_H15             STP7
        9   H_D44                                  G21   D44                                                                                                                     DP1         H15                              1
                                 H_D45                                                                                                                                                                  ICT_775_H16             STP8
        9   H_D45                                  E22   D45                                                                                                                     DP2         H16                              1
                                 H_D46             D22                                                                                                                                       J17        ICT_775_J17           1 Testing Point
        9   H_D46                H_D47                   D46                                                                                                                     DP3                                            Testing Point
        9   H_D47                                  G22   D47
                                 H_D48             D20                                                                                                                                                                          Testing Point
        9   H_D48                H_D49                   D48                                                                                                                                            H_REQ0                  Testing Point
        9   H_D49                                  D17   D49                                                                                                                    REQ0         K4                                 H_REQ0               9
                                 H_D50             A14                                                                                                                                       J5         H_REQ1
        9   H_D50                                        D50                                                                                                                    REQ1                                            H_REQ1               9
                                 H_D51             C15                                                                                                                                       M6         H_REQ2                                                                                                 TESTHI0             R17              51-1                         V_FSB_VTT
        9   H_D51                                        D51                                                                                                                    REQ2                                            H_REQ2               9
                                 H_D52             C14                                                                                                                                       K6         H_REQ3
        9   H_D52                                        D52                                                                                                                    REQ3                                            H_REQ3               9
                                 H_D53             B15                                                                                                                                       J6         H_REQ4                                                                                                 TESTHI2_7           R18              51-1
        9   H_D53                                        D53                                                                                                                    REQ4                                            H_REQ4               9
                                 H_D54             C18
        9   H_D54                H_D55                   D54                                                                                                                                                                                                                                                   TESTHI1             R19              51-1
        9   H_D55                                  B16   D55                                                                                                                                                                                                                                                                                                                     VTT_OUT_L
                                 H_D56             A17                                                                                                                                       AE8
        9   H_D56                H_D57                   D56                                                                                                                SKTOCC
        9   H_D57                                  B18   D57
                                 H_D58             C21                                                                                                                                                                                                                                                         TESTHI10            R22              51-1
        9   H_D58                H_D59                   D58                                                                                                                                            TESTHI0
        9   H_D59                                  B21   D59                                                                                                                TESTH0           F26
                                 H_D60             B19                                                                                                                                       W3         TESTHI1                                                                                                TESTHI11            R23              51-1
        9   H_D60                H_D61                   D60                                                                                                                TESTH1
        9   H_D61                                  A19   D61                                                                                                                TESTH2           F25
                              



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