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( P4 LGA775P Processor with DDR2 SDRAM Mainboard )


A
945GCT/GZT-M Rev: 1.0
Page Title of Schematic :
Title Page Title Page A



Schematics Version History Table : Cover Sheet 1
Circuit Ver. PCB Ver. Total Page Modified Page(s) Date System Block Diagram 2
A A 33 11/03/' 06 P4 LGA775P Part A 3
B B 33 12/01/' 06 P4 LGA775P Part B 4
1.0 1.0 33 12/23/' 06 P4 LGA775P Part C 5
P4 LGA775P Part D 6
P4 LGA775P Part E 7
Clock Generator(CK410) 8
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


PCI Extender 32
Back I/O 33 Elitegroup Computer Systems
VT6307 (1394) 34 Title

Schematic Change History 35 Cover Sheet
Size Document Number Rev
Custom 945GCT/GZT-M 1.0
Date: Wednesday, December 27, 2006 Sheet 1 of 33
1 2 3 4 5 6 7 8
A B C D E



DEVICE IDSEL INT# REQ# GNT#
PCB : 244 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 D PREQ-3 PGNT-3 PSC, Smithfield -
4 4
LAN 21 E PREQ-4 PGNT-4
LGA 775 pin
EPCI1 22 A/B/C/D PREQ-5 PGNT-5
EPCI2 23 B/C/D/A PREQ-5 PGNT-5


BW : 4.1GB/s @ FSB : 533MHz & Freq : 133MHz
BW : 6.4GB/s @ FSB : 800MHz & Freq : 200MHz
BW : 6.4GB/s @ FSB : 1066MHz & Freq : 266MHz
BW : 10.7GB/s @ DDR2 :533/667MHz
INTEL
i945G/P DDIMM1: DDR2 Socket 240P
3
DDIMM2 : DDR2 Socket 240P 3
Analong Display 1210pin FC-BGA
RAMDAC: 400MHz VGA (G only) DDIMM3: DDR2 Socket 240P
Resolutions Up To 2048x1536@75Hz
BW : 2GB/s (Support Lsoch) DDIMM4 : DDR2 Socket 240P
USB V2.0
USB1 USB2 USB3 USB4 PCIEx1
2 ports 2 ports 2 ports 2 ports INTEL
Up to Ultra ATA/100 ICH7 BW : 133MB/s @Freq : 33MHz

IDE1 40pin PCI1 Slot 120pin @ AD17
One IDE Channel 652pin EBGA
Line in PCI2 Slot 120pin @ AD18
2 Audio Codec Azalia I/F 2
Line out

Mic in ALC660/888
Center/Bass out intel LPC bus
FWH 10/100
Surround 32pin PLCC
SATA1 7Pin /1000 Lan
Side-Surround
SATA2 7pin Super I/O
SATA3 7Pin BW : 150MB/s ITE8718 USBLAN
RJ45
SATA4 7pin 128pin PQFP

1 1

Elitegroup Computer Systems
Title
System Block Diagram
Size Document Number Rev
B 945GCT/GZT-M 1.0

Date: Wednesday, November 01, 2006 Sheet 2 of 33
A B C D E
5 4 3 2 1




3VSBY VREF1_05V +12V
06/20 ADD

R865 1K-04-O
ICT_775_E23 1 R826
STP3
R827 VCC3
ICT_775_E7 1 0-04-O
STP8




8
28.7K-1-04-O




C
ICT_775_F23 1 STP2 3 Q112
+
06/20 ADD 1 B
IMPSEL R813 49.9-1-04 2 PMBT2222A-S-O V_SFR_OUT
R825 - U16A




E
COMP8 R800 24.9-1-04 24.3K-1-04-O GS358SFS




4
D D
LG_775_J3




10U-10V-08-O
R782 1K-04-O C386




1
MC100
R240 49.9-1-04 .1U-16V-04-O
R781 1K-04-O LG_775_E5 R231 49.9-1-04 R823
COMP6 R238 49.9-1-04 VTT_OUT_R




2
R814 49.9-1-04 H_BPM2_1 1.1K-1-04-O
VTT_OUT_L H_VCCPLL
CPUGTLREF3 FORCEPH_N
4 CPUGTLREF3 FORCEPH_N 4,29
R824

CPUVID0 2.43K-1-04-O
CPUVID0 29
MCH_GTLREF_CPU CPUVID1
9 MCH_GTLREF_CPU CPUVID1 29
CPUVID2
VSSSEN VSS_SENSE_AN6 CPUVID3 CPUVID2 29




LG_775_J3
29 VSSSEN CPUVID3 29
R211 0 STP34 STP35 CPUVID4
CPUVID4 29
MC115 CPUVID5
VCCSEN VCC_SENSE_AN5 CPUVID6 CPUVID5 29
10U-10V-08-O CPUVID6 29




1




1
29 VCCSEN R213 0 COMP7 CPUVID7
VTT_OUT_R CPUVID7 29
R229 49.9-1-04
V_SFR_OUT
VID_SELECT 29
BC118 .1U-16V-04 R198 0-04
CPU1A L93 IND-.47u-12-O




AM2

AM3



AM5
AM7
AC4
AE3
AE4
AE6
AH2
AN5
AN6




AK6




AK4



AN7
G10
A20




D14
D16
E23
E24




B13




D23




AL5

AL6

AL4
F23
F29




W1



G6
C9
D1




E5
E6
E7




N4
N5
P5
V1

Y3
LGA-775PS-TYC




F6
1 2




J3
H_VCCPLL
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
H_D0 B4 L5 H_A3 VDDQ
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 L92 IND-.47u-12
9 H_D2 D2 A5 H_A5 9
H_D3 C6 L4 H_A6 H_VCCPLL 1 2
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
9 H_D5 H_D6 D5 A8 H_A9 H_A8 9
B7 T5 C348 C345
9 H_D6 D6 A9 H_A9 9
C H_D7 A7 U6 H_A10 .1U-16V-04 .01U-25V-04 C
9 H_D7 H_D8 D7 A10 H_A11 H_A10 9
A10 T4 H_A11 9
9 H_D8 H_D9 D8 A11 H_A12
A11 U5 H_A12 9
9 H_D9 H_D10 D9 A12 H_A13
B10 U4 H_A13 9
9 H_D10 H_D11 D10 A13 H_A14
C11 V5 H_A14 9
9 H_D11 H_D12 D11 A14 H_A15
D8 V4 H_A15 9
9 H_D12 H_D13 D12 A15 H_A16
B12 W5 H_A16 9
9 H_D13 H_D14 D13 A16 H_A17
C12 AB6 H_A17 9
9 H_D14 H_D15 D14 A17 H_A18
D11 W6 H_A18 9
9 H_D15 H_D16 D15 A18 H_A19
G9 Y6 H_A19 9
9 H_D16 H_D17 D16 A19 H_A20
F8 Y4 H_A20 9
9 H_D17 H_D18 D17 A20 H_A21 VTT_OUT_R
F9 AA4 H_A21 9
9 H_D18 H_D19 D18 A21 H_A22
E9 AD6 H_A22 9
9 H_D19 H_D20 D19 A22 H_A23
D7 AA5 H_A23 9
9 H_D20 H_D21 D20 A23 H_A24
E10 AB5 H_A24 9
9 H_D21 H_D22 D21 A24 H_A25
D10 AC5 H_A25 9
9 H_D22 H_D23 D22 A25 H_A26 H_BPM0 ER91 49.9-1-04
F11 AB4 H_A26 9
9 H_D23 H_D24 D23 A26 H_A27
F12 AF5 H_A27 9
9 H_D24 H_D25 D24 A27 H_A28 H_BPM1 ER87 49.9-1-04
D13 AF4 H_A28 9
9 H_D25 H_D26 D25 A28 H_A29
E13 AG6 H_A29 9
9 H_D26 H_D27 D26 A29 H_A30 H_BPM2 ER85 49.9-1-04
G13 AG4 H_A30 9
9 H_D27 H_D28 D27 A30 H_A31
F14 AG5 H_A31 9
9 H_D28 H_D29 D28 A31 H_BPM3 ER75 49.9-1-04
G14 AH4
9 H_D29 H_D30 D29 A32
F15 AH5
9 H_D30 H_D31 D30 A33 H_BPM4 ER84 49.9-1-04
G15 AJ5
9 H_D31 H_D32 D31 A34
G16 AJ6
9 H_D32 H_D33 D32 A35 H_BPM5 ER83 49.9-1-04
E15
9 H_D33 H_D34 D33
E16
9 H_D34 H_D35 D34 H_BPM0
G18 AJ2
9 H_D35 H_D36 D35 BPM0 H_BPM1
G17 AJ1
9 H_D36 H_D37 D36 BPM1 H_BPM2
F17 AD2
9 H_D37 H_D38 D37 BPM2 H_BPM3
B 9 H_D38 H_D39
F18
E18
D38 BPM3
AG2
AF2 H_BPM4
Please BPM TERMINATION NEAR to CPU B
9 H_D39 H_D40 D39 BPM4 H_BPM5
E19 AG3
9 H_D40 H_D41 D40 BPM5
F20
9 H_D41 H_D42 D41
E21
9 H_D42 H_D43 D42 ICT_775_J16
F21 J16 1 STP6
9 H_D43 H_D44 D43 DP0 ICT_775_H15
G21 H15 1 STP7
9 H_D44 H_D45 D44 DP1 ICT_775_H16 TESTHI12 R246 49.9-1-04 VTT_OUT_L
E22 H16 1 STP5 VTT_OUT_L
9 H_D45 H_D46 D45 DP2 ICT_775_J17
D22 J17 1 STP4
9 H_D46 H_D47 D46 DP3
G22
9 H_D47 H_D48 D47
D20
9 H_D48 H_D49 D48 H_REQ0
D17 K4 H_REQ0 9
9 H_D49 H_D50 D49 REQ0 H_REQ1
A14 J5 H_REQ1 9
9 H_D50 H_D51 D50 REQ1 H_REQ2
C15 M6 H_REQ2 9
9 H_D51 H_D52 D51 REQ2 H_REQ3
C14 K6 H_REQ3 9
9 H_D52 H_D53 D52 REQ3 H_REQ4 TESTHI0 R152 49.9-1-04
B15 J6 H_REQ4 9 V_FSB_VTT
9 H_D53 H_D54 D53 REQ4
C18
9 H_D54 H_D55 D54 TESTHI2_7 R148 49.9-1-04
B16
9 H_D55 H_D56 D55
A17 AE8
9 H_D56 H_D57 D56 SKTOCC TESTHI1 R239 49.9-1-04
B18 VTT_OUT_L
9 H_D57 H_D58 D57
C21
9 H_D58 H_D59 D58 TESTHI0 H_BPM2_3 R232 49.9-1-04
B21 F26
9 H_D59 H_D60 D59 TESTH0 TESTHI1
B19 W3
9 H_D60 H_D61 D60 TESTH1 H_BPM2_2 R237 49.9-1-04
A19 F25
9 H_D61 H_D62 D61 TESTH2
A22 G25
9 H_D62 H_D63 D62 TESTH3 TESTHI10 R241 49.9-1-04
B22 G27
9 H_D63 D63 TESTH4
G26
TESTH5 TESTHI11 R247 49.9-1-04
G24
H_RS0_L TESTH6 TESTHI2_7
B3 F24
9 H_RS0_L H_RS1_L RS0 TESTH7 H_BPM2_3
9 H_RS1_L H_RS2_L
F5
A3
RS1 TESTH8
G3
G4 H_BPM2_2
Please Rs & CAPs Close to CPU
9 H_RS2_L