Gigabyte GA-8I955X DUAL GRAPHIC Schematic REV.1.0

5

4

Model Name: 8I955X DUAL GRAPHIC

3

Revision 1.0

2

1

SHEET TITLE

01

D D

02
03
04
05
06
07
08
09

C C

10
11
12
13
14
15

COVER SHEET
BLOCK DIAGRAM
BOM & PCB MODIFY HISTORY
P4_LGA775_A
P4_LGA775_B
P4_LGA775_C
L775_D, E, F, G
GMCH-GLENWOOD_HOST
GMCH-GLENWOOD_DDRII
GLENWOOD PCI_EXP_16,DMI
GLENWOOD MSIC
GMCH-GLENWOOD_GND
GMCH-GLENWOOD_PWR
DDRII CHANNEL A 1,2

DDRII CHANNEL B 1,2

SHEET TITLE

28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

FRONT PANEL

USBFRONT CONNECTOR
PROCHOT & FAN CONTROL
AZALIA CODEC ALC882
REAR AUDIO JACK
FRONT AUDIO CONNECTOR
DISCRETE POWER
ITE 8712
COM LPT
ITE 8212-A
ITE 8212-B
VCORE PWM_ISL6556
BROADCOM 5751-1Gbit LAN
TSB82AA2
TSB81BA3

16
17

B B

18
19
20
21
22
23

24

A A

25

26
27

DDRII TERMINATION
PCI EXPRESS*16 SLOT
ICH7 PCI, USB, DMI, LAN
ICH7 IDE, GPIO, SATA, CTRL
ICH7 VCC, GND
DUAL BIOS
CLOCK GEN ICS954567
PCI EXPRESS 16PORT SLOTx4

PCI SLOT 1,2,3
WHWMO/FAN
IDE/FLOPPY
KB_PS2

5

4

3

43
44
45

PCI EXPRESS 4 PORTx2
ATX, OTHERS POWER
SPI-Dual BIOS

Title

Size Document Number Rev
Custom

2

Date: Sheet

GIGABYTE TECHNOLOGY

Cover Sheet

8I955X DUAL GRAPHIC

1

of

145Wednesday, August 24, 2005

1.0

5

4

3

2

1

BLOCK DIAGRAM

INTEL Pentium4
LGA775

D D

CLOCK GENERATOR

CKVDD = 3.3V

VCORE = 1.4V
VCC3

PCI EXPRESS X16

VDDQ = 1.5V (AGP POWER 4X)
VCC3 = 3.3V
+12V = 12V
3VDUAL = 3.3V
VCC = 5V

BROADCOM 5789

C C

GMCH
Glenwood

VCORE = 1.75V / SLEEP : 1.3V
2_5VSTR = 2.5V(MEMORY)
VDDQ = 1.5V (AGP POWER 4X, HUBLINK)

MAA0~14
MAA_CPC1~5
MAB_CPC1~5
MDD0~63

-DQSD0~7
DM0~7

CHANNEL A
DDRII DIMM X 2

1.8VSTR = 1.8V(MEMORY,SUSPEND POWER)
VTT_DDR = 0.9V

PAGE 14,15

CHANNEL B
DDRII DIMM X 2

1.8VSTR = 1.8V(MEMORY,SUSPEND POWER)
VTT_DDR = 0.9V

PAGE 16,17

PCI EXPRESS X4 SLOT
1~2

VDDQ = 1.5V (AGP POWER 4X)
VCC3 = 3.3V
+12V = 12V
3VDUAL = 3.3V
VCC = 5V

USB PORTS 0~7

VCC = 5V
5VSB = 5V
5VUSB = 5V

ICH7R

VCC25 = 2.5V(I/O,MEMORY/I,VLINK/I)
3VDUAL = 3.3V(SUSPEND POWER)
VCC3 = 3.3V
RTCVDD = 3.3V

IDE Primary

VCC = 5V

SERIAL ATA

VCC = 5V

PAGE 28

PAGE 21

B B

PCI BUS

FWH/HWMO

PCI SLOT 1,2,3

+12 = 12V

-12 = -12V
VCC = 5V
VCC3 = 3V
3VDUAL = 3V

AC97/Azalia ALC882

+12V = 12V
VCC = 5V 5VSB = 5V

AVDD = 5V

PAGE 33

TI 1394B

LPC BUS

VCC = 5V
VCC3 = 3V

LPC I/O ITE8712GB-IX

VCC = 5VVCC3 = 3.3V
VBAT = 3V

PAGE 27

PAGE 39

ITE 8212

A A

AUDIO PORTS :

CD_IN

LINE_IN

AUX_IN

5

LIN_ OUT
TELE

FRONT AUDIO

MIC

PAGE 34,35

FRONT PANEL /CPU FAN

VCC = 5V
5VSB = 5V
+12 = 12V
PVCC = 5V

4

3

I/O PORTS :

COMB

COMA IR

LPT

2

PS2

FDD

PAGE 29,40

GIGABYTE TECHNOLOGY

Title

BOM & PCB MODIFY HISTORY

Size Document Number Rev
Custom

Date: Sheet

8I955X DUAL GRAPHIC

1

of

245Wednesday, August 24, 2005

1.0

5

4

3

2

1

Model Name: 8I955X Dual Graphic

Circuit or PCB layout change
for next version

Version: 1.0

DATE Change Item Reason

D D

Component value change
history

Data Change Item Reason

2005/5/25 8I955XD-G Ver 0.2
2005/6/16 audio codec

更換

ICH7

更換

PCIE_12V Connector

新增

PWR_LED connector.

修正

CPU COMP

C C

2005/8/8 8I955XD-G Ver 1.0A
2005/8/24 PVT 8I955XD-G Ver 1.0B

更新版本

散熱片

電阻值以符合

為防呆料

INTEL .

阻抗要求

2005/6/16

修改高速訊號

PS_ON

斷線連接

SMBUS

走線修正,避免

trace

Audio connector

寬度符合

CROSS TALK.

下方走線修改

INTEL .

阻抗要求

, for EMI.

B B

A A

Title

Size Document Number Rev
Custom

5

4

3

2

Date: Sheet

GIGABYTE TECHNOLOGY

BOM & PCB MODIFY HISTORY

8I955X DUAL GRAPHIC

1

of

345Wednesday, August 24, 2005

1.0

5

VCORE

BC5

10U/12/X5R/6.3V/K

D D

C C

BC6

10U/12/X5R/6.3V/K

BC7

10U/12/X5R/6.3V/K

BC8

10U/12/X5R/6.3V/K

HA[3..16]8

HA[17..35]8

VCORE

HA[3..16]

HA[17..35]

+

EC1

100U/2V/SPCAP/X

+

EC2

100U/2V/SPCAP/X

-HREQ08

-HREQ18

-HREQ28

-HREQ38

-HREQ48

-HADSTB08

SP-CAP X 4PCS

VCORE

B B

+

100U/2V/SPCAP/X

EC5

+

100U/2V/SPCAP/X

EC6

+

EC7

100U/2V/SPCAP/X

-HADSTB18

HA3
HA4
HA5
HA6
HA7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
HA16

HA17
HA18
HA19
HA20
HA21
HA22
HA23
HA24
HA25
HA26
HA27
HA28
HA29
HA30
HA31
HA32
HA33
HA34
HA35

4

VCORE

+

EC3

100U/2V/SPCAP/X

-HREQ0

-HREQ1

-HREQ2

-HREQ3

-HREQ4

-HADSTB0

-HADSTB1

+

EC4

100U/2V/SPCAP/X

U1A

L5

A03#

P6

A04#

M5

A05#

L4

A06#

M4

A07#

R4

A08#

T5

A09#

U6

A10#

T4

A11#

U5

A12#

U4

A13#

V5

A14#

V4

A15#

W5

A16#

N4

RSVD

P5

RSVD

K4

REQ0#

J5

REQ1#

M6

REQ2#

K6

REQ3#

J6

REQ4#

R6

ADSTB0#

G5

PCREQ#

AB6

A17#

W6

A18#

Y6

A19#

Y4

A20#

AA4

A21#

AD6

A22#

AA5

A23#

AB5

A24#

AC5

A25#

AB4

A26#

AF5

A27#

AF4

A28#

AG6

A29#

AG4

A30#

AG5

A31#

AH4

A32#

AH5

A33#

AJ5

A34#

AJ6

A35#

AC4

RSVD

AE4

RSVD

AD5

ADSTB1#

CPU-SK/775

VCORE

BC1

10U/12/X5R/6.3V/K

ADS#
BNR#

HIT#

RSP#

BPRI#
DBSY#
DRDY#

HITM#

IERR#

INIT#
LOCK#
TRDY#
BINIT#

DEFER#
EDRDY#
MCERR#

AP0#
AP1#

BR0#
TESTHI08
TESTHI09
TESTHI10

DP0#

DP1#

DP2#

DP3#

GTLREF1
GTLREF0

RESET#

RS0#

RS1#

RS2#

3

BC2

10U/12/X5R/6.3V/K

-HADS

D2

-BNR

C2

-HIT

D4
H4

-BPRI

G8

-DBSY

B2

-DRDY

C1

-HITM

E4

-IERR

AB2

-HINIT

P3

-HLOCK

C3

-HTRDY

E3
AD3

-DEFER

G7
F2
AB3

U2

TP_CPU1

U3

TP_CPU2

-BR0

F3

TESTHI8

G3

TESTHI9

G4

TESTHI10

H5
J16

TP_CPU3

H15

TP_CPU4

H16

TP_CPU5

J17

TP_CPU6

GTLREF1

H2

GTLREF

H1

-CPURST

G23

-RS0

B3

-RS1

F5

-RS2

A3

BC3

10U/12/X5R/6.3V/K

-HADS 8

-BNR 8

-HIT 8

-BPRI 8

-DBSY 8

-DRDY 8

-HITM 8

-HLOCK 8

-HTRDY 8

-DEFER 8

-BR0 8

C5 220P/4/NPO/25V/J

-RS0 8

-RS1 8

-RS2 8

BC4

10U/12/X5R/6.3V/K

GTLREF1

C2 220P/4/NPO/25V/J

-HINIT 19

C4
33P/4/NPO/50V/J

-CPURST 8

C6
22P/4/NPO/50V/J

2

R1

VTT_OL

VTT_OR

VTT_GMCH

VTT_OL

VTT_OL

VTT_OR

124/6/1

R4

124/6/1

R3
210/6/1

R6
210/6/1

RN1 62/8P4R/6

7 8
5 6
3 4
1 2

R1585 62/6

R7 62/6/X

R8 62/6

R9 62/6

R1597 62/6/X

VTT_OR

VTT_OR

1

R2

10/6

C1

1U/6/Y5V/10V/Z

R5

10/6

C3

1U/6/Y5V/10V/Z

TESTHI9
TESTHI10
TESTHI8

-IERR

-IERR

-BR0

-CPURST

-CPURST

GTLREF1

R1596

0/6/X

GTLREF

CR1

VCORE

BC9

10U/12/X/6.3V/X

A A

VCORE

BC16

10U/12/X/6.3V/X

BC17

10U/12/X/6.3V/X

5

VCORE

BC12

10U/12/X/6.3V/X

4

BC13

10U/12/X/6.3V/X

BC10

10U/12/X/6.3V/X

BC14

10U/12/X/6.3V/X

BC11

10U/12/X/6.3V/X

BC15

10U/12/X/6.3V/X

3

CPU RETAINTION/X

Title

Size Document Number Rev
Custom

2

Date: Sheet

GIGABYTE TECHNOLOGY

P4_LGA775-A

8I955X DUAL GRAPHIC

of

1

445Wednesday, August 24, 2005

1.0

5

D D

4

3

2

1

HD[0..15]8

C C

HD[16..31]8

B B

HD[0..15]

HD[16..31]

HD0
HD1
HD2
HD3
HD4
HD5
HD6
HD7
HD8
HD9
HD10
HD11
HD12
HD13
HD14
HD15

-DBI08
STBN08
STBP08

-DBI18
STBN18
STBP18

-DBI0
STBN0
STBP0

HD16
HD17
HD18
HD19
HD20
HD21
HD22
HD23
HD24
HD25
HD26
HD27
HD28
HD29
HD30
HD31

-DBI1
STBN1
STBP1

U1B

B4

D00#

C5

D01#

A4

D02#

C6

D03#

A5

D04#

B6

D05#

B7

D06#

A7

D07#

A10

D08#

A11

D09#

B10

D10#

C11

D11#

D8

D12#

B12

D13#

C12

D14#

D11

D15#

A8

DBI0#

C8

DSTBN0#

B9

DSTBP0

G9

D16#

F8

D17#

F9

D18#

E9

D19#

D7

D20#

E10

D21#

D10

D22#

F11

D23#

F12

D24#

D13

D25#

E13

D26#

G13

D27#

F14

D28#

G14

D29#

F15

D30#

G15

D31#

G11

DBI1#

G12

DSTBN1#

E12

DSTBP1

CPU-SK/775

D32#
D33#
D34#
D35#
D36#
D37#
D38#
D39#
D40#
D41#
D42#
D43#
D44#
D45#
D46#
D47#

DBI2#

DSTBN2#

DSTBP2

D48#
D49#
D50#
D51#
D52#
D53#
D54#
D55#
D56#
D57#
D58#
D59#
D60#
D61#
D62#
D63#

DBI3#

DSTBN3#

DSTBP3

HD32

G16

HD33

E15

HD34

E16

HD35

G18

HD36

G17

HD37

F17

HD38

F18

HD39

E18

HD40

E19

HD41

F20

HD42

E21

HD43

F21

HD44

G21

HD45

E22

HD46

D22

HD47

G22

-DBI2

D19
G20
G19

D20
D17
A14
C15
C14
B15
C18
B16
A17
B18
C21
B21
B19
A19
A22
B22
C20
A16
C17

STBN2
STBP2

HD48
HD49
HD50
HD51
HD52
HD53
HD54
HD55
HD56
HD57
HD58
HD59
HD60
HD61
HD62
HD63

-DBI3
STBN3
STBP3

-DBI2 8
STBN2 8
STBP2 8

-DBI3 8
STBN3 8
STBP3 8

HD[32..47] 8

HD[48..63] 8

A A

Title

Size Document Number Rev
Custom

5

4

3

2

Date: Sheet

GIGABYTE TECHNOLOGY

P4_LGA775-C

8I955X DUAL GRAPHIC

of

1

545Wednesday, August 24, 2005

1.0

5

Note:

VCCA & VCOREPLL

VTT_GMCH

D D

C C

B B

A A

L1
10UH/8/S/[10LI2-12100A-03_10LI2-12100A-02]

C9
1U/6/Y5V/10V/Z

C11

VTT_GMCH

R1602
470/6

Q57

GS

2N7002/S

1U/6/Y5V/10V/Z

R1541
470/6

3

D

SOT23

2

1

0/6/X

R1571

R1605
470/6

3

Q66

D

GS

2

R1570 0/6/X

L2

10UH/8/S/[10LI2-12100A-03_10LI2-12100A-02]

VCC_SENSE25,39

VSS_SENSE25,39

2N7002/S

BSEL166_135

BSEL166_235

BC18

10U/12/X/6.3V/X

BC433
22U/12/X/6.3V/X

VTT_GMCH

R1555
470/6

SOT23

1

define doesn't same as
old P4 design kit

+

EC8

100U/D/10V/57

As close as possible to
CPU socket

C12
33P/4/NPO/50V/J

R1557 8.2K/6

Q65
MMBT2222A/SOT23/600mA/40

SOT23

132

VTT_GMCHVTT_GMCH

R1556 8.2K/6

Q56
MMBT2222A/SOT23/600mA/40

SOT23

132

-STPCLK

VCCA

R18
0/SHT/X

VSSA

VCOREPLL

BSEL0

CPU_TEMP25,35
THERMDC35

BC19

1N/4/X7R/50V/K

BSEL1

4

Trace width doesn't
less than 12 Mil

C14

1N/4/X7R/50V/K

VID[0..5]39

CPUCLK22

-CPUCLK22

VCC_SENSE25,39

VSS_SENSE25,39

-SMI19

-A20M19

-FERR19
INTR19

NMI19

-IGNNE19

-STPCLK19

VID[0..5]

R30 62/6

-SKTOCC22,39

R1564 62/6

R34 62/6
R35 62/6

-SYS_RST19,21,22,28,39

3

VCC3

R13

249/6/1

3

D

P2
K3
R3
K1
L1
N2

M3

A23
B23
D23
C23

AL5
AL6

AK4
AL4

F28
G28
AE8

AL1
AK1

F29

F6

V1
W1
N5

AE1
AD1
AF1
AC1
AG1

AJ2

AJ1
AD2
AG2
AF2
AG3

AC2
AK3

AJ3
G29

H30
G30

GS

2

U1C

SMI#
A20M#
FERR#/PBE#
LINT0
LINT1
IGNNE#
STPCLK#

VCCA
VSSA
RSVD
VCCIOPLL

VID0
VID1
VID2
VID3
VID4
VID5
VID6
VID7
VID_SELECT
BCLK0
BCLK1
SKTOCC#

THERMDA
THERMDC

VCC_SENSE
VSS_SENSE
RSVD
RSVD

VTT_PKGSENSE
IMPSEL

MSID1
MSID0
RSVD
RSVD

CPU-SK/775

U1D

TCK
TDI
TDO
TMS
TRST#

BPM0#
BPM1#
BPM2#
BPM3#
BPM4#
BPM5#

DBR#
ITPCLK0

ITPCLK1
BSEL0

BSEL1
BSEL2

CPU-SK/775

GTL_DET8

-SMI

-A20M

-FERR
INTR
NMI

-IGNNE

-STPCLK
VCCA

VSSA
VCOREPLL
VID0

AM2

VID1
VID2

AM3

VID3
VID4 -THRMTRIP
VID5

AM5

AM7

TCK
TDI
TDO
TMS

-TRST

-BPM0

-BPM1

-BPM2

-BPM3

-BPM4

-BPM5

-SYS_RST

FSBSEL0
FSBSEL1
FSBSEL2

MSID1
MSID0

AN7

AN3
AN4
AN5
AN6

AE6

CPUCLK

-CPUCLK

1

Q1

2N7002/S

SOT23

TESTHI0

VTT_GMCH

VCC3

PROCHOT#

THERMTRIP#

CS_GTLREF

GTLREF_SEL

BOOTSELECT

VTTPWRGD

VTT_OUT
VTT_OUT
VTT_SEL

TESTHI00
TESTHI01
TESTHI11
TESTHI12
TESTHI02
TESTHI03
TESTHI04
TESTHI05

TESTHII06

TESTHI07

RSVD
RSVD

SLP#

RSVD

PWRGOOD

COMP0
COMP1
COMP2
COMP3
COMP4
COMP5
COMP6
COMP7

RSVD
RSVD
RSVD
RSVD

LL_ID0
LL_ID1

VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT

N/C
N/C
N/C

N/C

A29
B25
B29
B30
C29
A26
B27
C28
A25
A28
A27
C30
A30
C25
C26
C27
B26
D27
D28
D25
D26
B28
D29
D30
AM6

AA1
J1
F27

R15

62/6/X

R1562 110/6/1

C1300

0.1U/6/Y/25V/X

F26
W3
P1
W2
F25
G25
G27
G26
G24
F24
AK6
G6

L2
AH2
N1
AL2
M2

A13
T1
G2
R1
J2
T2
Y3
AE3
C9
G10
D16
A20
F23

TP_CPU9

E23

TP_CPU8

E7

TP_CPU7

E24
H29
J3

BOOTSEL

Y1
V2
AA2

VTT_PWRGD

R45 1K/6/X

TESTHI0
TESTHI1
TESTHI11
TESTHI12

TESTHI2_7

-FORCEPR
RSVD_G6

TESTHI13
CPUPWROK

-PROCHOT

COMP0
COMP1
COMP2
COMP3
COMP4
COMP5
COMP6
COMP7

VTT_GMCH

R1563

61.9/6/1

-FORCEPR 30

CPUPWROK 19

-PROCHOT 30

-THRMTRIP 19

MCH_GTLREF 8
GTL_DET 8

VTT_PWRGD 34,39

VTT_OR
VTT_OL
VCC3

2

TESTHI0

C8

0.1U/6/Y5V/25V/Z

TESTHI0

Place outside of CPU socket

VTT_OL

C7

0.1U/6/Y5V/25V/Z

VTT_OR

C10 0.1U/6/Y5V/25V/Z

VTT_OR

VTT_GMCH

R10 49.9/6/1
R11 49.9/6/1
R12 49.9/6/1
R14 49.9/6/1

R16 49.9/6/1
R17 49.9/6/1

R19 49.9/6/1
R20 49.9/6/1

R21 130/6

RN2 470/8P4R/6

7 8
5 6
3 4
1 2

R22 62/6

R23 62/6
R24 62/6

Locate at ICH7 Side

C15

C16

R25 62/6/X
R26 100/6

VTT_OR

RN3

R32 680/6

62/8P4R/6

7 8
5 6
3 4
1 2

RN4 680/8P4R/6

7 8
5 6
3 4

1 2

R36 680/6
R37 680/6

R38 62/6/X
R39 62/6

RN5 62/8P4R/6

7 8

5 6

3 4

RN6

1 2

7 8

5 6

3 4

1 2

R42 62/6
R43 62/6

R44 62/6

VTT_OL

VTT_OL

VTT_OR

0.1U/6/Y5V/25V/Z

0.1U/6/Y5V/25V/Z

1

COMP6
COMP7

-PROCHOT
FSBSEL0

FSBSEL2
FSBSEL1

TESTHI2_7

-THRMTRIP

-FERR

RSVD_G6
CPUPWROK

C13
1N/4/X7R/50V/K

VTT_PWRGD

TESTHI1
TESTHI12
TESTHI11
TESTHI13

62/8P4R/6

COMP5
COMP4
COMP2
COMP3

COMP0
COMP1

VID4
VID2
VID5
VID0
VID1
VID3

BOOTSEL

-FORCEPR

-BPM0

-BPM1

-BPM5

-BPM4
TDI

-BPM3

-BPM2
TMS

TDO

-TRST
TCK

FSBSEL022
FSBSEL122
FSBSEL222

5

4

FSBSEL0
FSBSEL1
FSBSEL2

R46 8.2K/6/X
R47 8.2K/6/X
R48 8.2K/6

3

BSEL0
BSEL1
BSEL2

BSEL0 11
BSEL1 11
BSEL2 11

2

GIGABYTE TECHNOLOGY

Title

Size Document Number Rev
Custom

Date: Sheet

P4_LGA775-B

8I955X DUAL GRAPHIC

of

1

645Wednesday, August 24, 2005

1.0

5

D D

U1E

VCORE

C C

B B

AA8

AB8
AC23
AC24
AC25
AC26
AC27
AC28
AC29
AC30

AC8
AD23
AD24
AD25
AD26
AD27
AD28
AD29
AD30

AD8
AE11
AE12
AE14
AE15
AE18
AE19
AE21
AE22
AE23

AE9
AF11
AF12
AF14
AF15
AF18
AF19
AF21
AF22

AF8

AF9
AG11
AG12
AG14
AG15
AG18
AG19
AG21
AG22
AG25
AG26
AG27
AG28
AG29
AG30

AG8

AG9

VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC

CPU-SK/775

VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC

AH11
AH12
AH14
AH15
AH18
AH19
AH21
AH22
AH25
AH26
AH27
AH28
AH29
AH30
AH8
AH9
AJ11
AJ12
AJ14
AJ15
AJ18
AJ19
AJ21
AJ22
AJ25
AJ26
AJ8
AJ9
AK11
AK12
AK14
AK15
AK18
AK19
AK21
AK22
AK25
AK26
AK8
AK9
AL11
AL12
AL14
AL15
AL18
AL19
AL21
AL22
AL25
AL26
AL29
AL30
AL8
AL9

VCORE

VCORE

4

U1F

AM11
AM12
AM14
AM15
AM18
AM19
AM21
AM22
AM25
AM26
AM29
AM30

AM8

AM9
AN11
AN12
AN14
AN15
AN18
AN19
AN21
AN22
AN25
AN26
AN29
AN30

AN8
AN9

M23
M24
M25
M26
M27
M28
M29
M30

J10
J11
J12
J13
J14
J15
J18
J19
J20
J21
J22
J23
J24
J25
J26
J27
J28
J29
J30

K23
K24
K25
K26
K27
K28
K29
K30

J8
J9

K8
L8

M8

VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC

CPU-SK/775

VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC

N23
N24
N25
N26
N27
N28
N29
N30
N8
P8
R8
T23
T24
T25
T26
T27
T28
T29
T30
T8
U23
U24
U25
U26
U27
U28
U29
U30
U8
V8
W23
W24
W25
W26
W27
W28
W29
W30
W8
Y23
Y24
Y25
Y26
Y27
Y28
Y29
Y30
Y8

VCORE

3

U1G

AA23
AA24
AA25
AA26
AA27
AA28
AA29

AA30

AB23
AB24
AB25
AB26
AB27
AB28
AB29
AB30

AE10
AE13
AE16
AE17

AE20
AE24
AE25
AE26
AE27
AE28
AE29
AE30

AF10
AF13
AF16
AF17
AF20
AF23
AF24
AF25
AF26
AF27
AF28
AF29

AF30

AC3
AC6
AC7
AD4
AD7

AE2

AE5
AE7

AF3
AF6

AF7

A12
A15
A18

A21
A24

AA3
AA6

AA7
AB1

AB7

A2

A6
A9

VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS

CPU-SK/775

VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS

AG10
AG13
AG16
AG17
AG20
AG23
AG24
AG7
AH1
AH10
AH13
AH16
AH17
AH20
AH23
AH24
AH3
AH6
AH7
AJ10
AJ13
AJ16
AJ17
AJ20
AJ23
AJ24
AJ27
AJ28
AJ29
AJ30
AJ4
AJ7
AK10
AK13
AK16
AK17
AK2
AK20
AK23
AK24
AK27
AK28
AK29
AK30
AK5
AK7
AL10
AL13
AL16
AL17
AL20
AL23
AL24
AL27
AL28
AL3
AL7
AM1
AM10
AM13
AM16
AM17
AM20
AM23
AM24
AM27
AM28
AM4

2

U1H

AN1

VSS

AN10

VSS

AN13

VSS

AN16

VSS

AN17

VSS

AN2

VSS

AN20

VSS

AN23

VSS

AN24

VSS

AN27

VSS

AN28

VSS

B1

VSS

B11

VSS

B14

VSS

B17

VSS

B20

VSS

B24

VSS

B5

VSS

B8

VSS

C10

VSS

C13

VSS

C16

VSS

C19

VSS

C22

VSS

C24

VSS

C4

VSS

C7

VSS

D12

VSS

D15

VSS

D18

VSS

D21

VSS

D24

VSS

D3

VSS

D5

VSS

D6

VSS

D9

VSS

E11

VSS

E14

VSS

E17

VSS

E2

VSS

E20

VSS

E25

VSS

E26

VSS

E27

VSS

E28

VSS

E29

VSS

E8

VSS

F10

VSS

F13

VSS

F16

VSS

F19

VSS

F22

VSS

F4

VSS

F7

VSS

G1

VSS

H10

VSS

H11

VSS

H12

VSS

H13

VSS

H14

VSS

H17

VSS

H18

VSS

H19

VSS

H20

VSS

H21

VSS

H22

VSS

H23

VSS

H24

VSS

CPU-SK/775

VSS
VSS
VSS
VSS

VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS

1

H25
H26
H27
H28

H3
H6
H7
H8
H9
J4
J7
K2
K5
K7
L23
L24
L25
L26
L27
L28
L29
L3
L30
L6
L7
M1
M7
N3
N6
N7
P23
P24
P25
P26
P27
P28
P29
P30
P4
P7
R2
R23
R24
R25
R26
R27
R28
R29
R30
R5
R7
T3
T6
T7
U1
U7
V23
V24
V25
V26
V27
V28
V29
V3
V30
V6
V7
W4
W7
Y2
Y5
Y7

A A

GIGABYTE TECHNOLOGY

Title

Size Document Number Rev
Custom

5

4

3

2

Date: Sheet

P4_LGA775-D

8I955X DUAL GRAPHIC

of

1

745Wednesday, August 24, 2005

1.0

5

4

3

2

1

R54

301/6/1

R56

84.5/6/1

VTT_GMCH

BC20

0.01U/4/X7R/16V/K

+12V

VTT_GMCH

VTT_GMCH

R57

60.4/6/1

C19

2.2P/4/X/16V/X

R49

124/6/1

R53

8.2K/6

HSCOMP

R50

10/6
R51
210/6/1

VCORE

R52

619/6/1

3

D

GS

2

1

R55 62/6

C18

0.01U/6/X7R/50V/K

MCH_GTLREF

BC21

0.1U/6/Y5V/25V/Z

Q2

2N7002/S

SOT23

MCH_GTLREF

HSWNG

HRCOMP

R58

16.9/6/1

C17
220P/6/NPO/50V/J

AA37

AA35
AA42
AA34
AA38

W42
W40

W41

AA41

M34
N35
R33
N32
N34
M38
N42
N37
N38
R32
R36
U37
R35
R38

U34
U32

U35

D41
G37
M36

M31
M29

G34

M26

U41
U40

U39
D42
U42

C30

R27

J39
K38
J42
K35
J37

V33

V42
Y36

Y38
V32

Y34

E41
K36
E42
V35

A28
B27

K41
L43
K40
F35

A38
J27

E29
E34
B37
B32

V41
P40

T40
Y43
T43

P27

U2A

HA3*
HA4*
HA5*
HA6*
HA7*
HA8*
HA9*
HA10*
HA11*
HA12*
HA13*
HA14*
HA15*
HA16*
HA17*
HA18*
HA19*
HA20*
HA21*
HA22*
HA23*
HA24*
HA25*
HA26*
HA27*
HA28*
HA29*
HA30*
HA31*
HA32*
HA33*
HA34*
HA35*

HREQ0*
HREQ1*
HREQ2*
HREQ3*
HREQ4*
HADSTB0*
HADSTB1*

HCLKP
HCLKN

HRCOMP
HSWING

HDSTBP0*
HDSTBN0*
HDINV0*
HDSTBP1*
HDSTBN1*
HDINV1*
HDSTBP2*
HDSTBN2*
HDINV2*
HDSTBP3*
HDSTBN3*
HDINV3*

HADS*
HTRDY*
HDRDY*
HDEFER*
HHITM*
HHIT*
HLOCK*
HBREQ0*
HBNR*
HBPRI*
HDBSY*
HRS0*
HRS1*
HRS2
HCPURST*

CPU INTERFACE

RSVD
RSVD

HD0*
HD1*
HD2*
HD3*
HD4*
HD5*
HD6*
HD7*
HD8*

HD9*
HD10*
HD11*
HD12*
HD13*
HD14*
HD15*
HD16*
HD17*
HD18*
HD19*
HD20*
HD21*
HD22*
HD23*
HD24*
HD25*
HD26*
HD27*
HD28*
HD29*
HD30*
HD31*
HD32*
HD33*
HD34*
HD35*
HD36*
HD37*
HD38*
HD39*
HD40*
HD41*
HD42*
HD43*
HD44*
HD45*
HD46*
HD47*
HD48*
HD49*
HD50*
HD51*
HD52*
HD53*
HD54*
HD55*
HD56*
HD57*
HD58*
HD59*
HD60*
HD61*
HD62*
HD63*

HDVREF

HACCVREF

HSCOMP

HPCREQ

HEDRDY*

P41
M39
P42
M42
N41
M40
L40
M41
K42
G39
J41
G42
G40
G41
F40
F43
F37
E37
J35
D39
C41
B39
B40
H34
C37
J32
B35
J34
B34
F32
L32
J31
H31
M33
K31
M27
K29
F31
H29
F29
L27
M24
J26
K26
G26
H24
K24
F24
E31
A33
E40
D37
C39
D38
D33
C35
D34
C34
B31
C31
C32
D32
B30
D30

D27
D28

C27

F38
Y40

HD0
HD1
HD2
HD3
HD4
HD5
HD6
HD7
HD8
HD9
HD10
HD11
HD12
HD13
HD14
HD15
HD16
HD17
HD18
HD19
HD20
HD21
HD22
HD23
HD24
HD25
HD26
HD27
HD28
HD29
HD30
HD31
HD32
HD33
HD34
HD35
HD36
HD37
HD38
HD39
HD40
HD41
HD42
HD43
HD44
HD45
HD46
HD47
HD48
HD49
HD50
HD51
HD52
HD53
HD54
HD55
HD56
HD57
HD58
HD59
HD60
HD61
HD62
HD63

MCH_GTLREF

HSCOMP

HD[0..63]

MCH_GTLREF 6

HD[0..63] 5

GTL_DET6

HA[3..35]4

D D

C C

B B

HA[3..35]

MCHCLK22

-MCHCLK22

HA3
HA4
HA5
HA6
HA7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
HA16
HA17
HA18
HA19
HA20
HA21
HA22
HA23
HA24
HA25
HA26
HA27
HA28
HA29
HA30
HA31
HA32
HA33
HA34
HA35

-HREQ04

-HREQ14

-HREQ24

-HREQ34

-HREQ44

-HADSTB04

-HADSTB14

-HTRDY4

-DEFER4

-HLOCK4

-DBSY4

-CPURST4

-HREQ0

-HREQ1

-HREQ2

-HREQ3

-HREQ4

-HADSTB0

-HADSTB1

MCHCLK

-MCHCLK
HRCOMP

HSWNG

STBP0

STBP05

STBN0

STBN05

-DBI0

-DBI05
STBP1

STBP15

STBN1

STBN15

-DBI1

-DBI15
STBP2

STBP25

STBN2

STBN25

-DBI2

-DBI25
STBP3

STBP35

STBN3

STBN35

-DBI3

-DBI35

-HADS

-HADS4

-HTRDY

-DRDY

-DRDY4

-DEFER

-HITM

-HITM4

-HIT

-HIT4

-HLOCK

-BR0

-BR04

-BNR

-BNR4

-BPRI

-BPRI4

-DBSY

-RS0

-RS04

-RS1

-RS14

-RS2

-RS24

-CPURST

A A

COUPON1 COUPON2

5

4

COUPON1 COUPON

21

VCC

3

COUPON2 COUPON

21

2

Title

Size Document Number Rev
Custom

Date: Sheet

GIGABYTE TECHNOLOGY

GMCH-HOST

8I955X DUAL GRAPHIC

of

1

845Wednesday, August 24, 2005

1.0

5

MODT_A[0..3]

MAAA0
MAAA1
MAAA2
MAAA3
MAAA4
MAAA5

D D

-SCASA14,16

-SRASA14,16

C C

B B

DCLKA014

-DCLKA014
DCLKA114

-DCLKA114
DCLKA214

-DCLKA214
DCLKA314

-DCLKA314
DCLKA414

-DCLKA414
DCLKA514

-DCLKA514

0.1U/6/Y/25V/X

MAAA6
MAAA7
MAAA8
MAAA9
MAAA10
MAAA11
MAAA12
MAAA13

-SWEA

-SWEA14,16

-SCASA

-SRASA

SBAA0

SBAA014,16

SBAA1

SBAA114,16

SBAA2

SBAA214,16

-CSA0

-CSA014,16

-CSA1

-CSA114,16

-CSA2

-CSA214,16

-CSA3

-CSA314,16
CKEA0

CKEA014,16

CKEA1

CKEA114,16

CKEA2

CKEA214,16

CKEA3

CKEA314,16

MODT_A0
MODT_A1
MODT_A2
MODT_A3

DCLKA0

-DCLKA0
DCLKA1

-DCLKA1
DCLKA2

-DCLKA2

DCLKA3

-DCLKA3

-DCLKA4

DCLKA5

-DCLKA5

DDRVREFA

C20

TP1
TP2

SACB0
SACB1
SACB2
SACB3
SACB4
SACB5
SACB6
SACB7
DQSA8

-DQSA8

NB_HEATSIN

A A

MODT_A[0..3] 14,16

U2F

BB32

SAMA0

BA30

SAMA1

BB30

SAMA2

AY30

SAMA3

BC28

SAMA4

BA27

SAMA5

AY28

SAMA6

AY27

SAMA7

BB27

SAMA8

AW27

SAMA9

AY33

SAMA10

BB26

SAMA11

BA26

SAMA12

AW37

SAMA13

BA35

SAWE*

AY37

SACAS*

AY34

SARAS*

BC33

SABA_0

BA32

SABA_1

BB25

SABA_2

BB35

SACS_0*

BC38

SACS_1*

BA34

SACS_2*

BA39

SACS_3*

AY25

SACKE0

BC24

SACKE1

BA25

SACKE2

AY24

SACKE3

BA37

SAODT0

AY38

SAODT1

BB37

SAODT2

AY39

SAODT3

AY32

SACK0

AW32

SACK0*

BA5

SACK1

AY6

SACK1*

AK42

SACK2

AK41

SACK2*

BB31

SACK3

BA31

SACK3*

AY7

SACK4

BC6

SACK4*

AH43

SACK5

AH40

SACK5*

AH1

SMVREF0

AL15

RSV_TP(1)

AK15

RSV_TP(0)

AP18

SACB0

AR18

SACB1

AR21

SACB2

AP21

SACB3

AM18

SACB4

AM20

SACB5

AT20

SACB6

AV20

SACB7

AU18

SADQS8

AV18

SADQS8*

1

Glenwood/[10HB1-032965-10R]

SADQS0

SADQS0*

SADM0
SADQ0
SADQ1
SADQ2
SADQ3
SADQ4
SADQ5
SADQ6
SADQ7

SADQS1

SADQS1*

SADM1
SADQ8

SADQ9
SADQ10
SADQ11
SADQ12
SADQ13
SADQ14
SADQ15

SADQS2

SADQS2*

SADM2
SADQ16
SADQ17
SADQ18
SADQ19
SADQ20
SADQ21
SADQ22
SADQ23

SADQS3

SADQS3*

SADM3
SADQ24
SADQ25
SADQ26
SADQ27
SADQ28
SADQ29
SADQ30
SADQ31

SADQS4

SADQS4*

SADM4
SADQ32
SADQ33
SADQ34
SADQ35
SADQ36
SADQ37
SADQ38
SADQ39

SADQS5

SADQS5*

SADM5
SADQ40
SADQ41
SADQ42
SADQ43
SADQ44
SADQ45
SADQ46
SADQ47

SADQS6

SADQS6*

SADM6
SADQ48
SADQ49
SADQ50
SADQ51
SADQ52
SADQ53
SADQ54
SADQ55

SADQS7

SADQS7*

SADM7
SADQ56
SADQ57
SADQ58
SADQ59
SADQ60
SADQ61
SADQ62
SADQ63

DDR INTERFACE

AU3
AU2
AU5
AR2
AU4
AW4
AW3
AP2
AR3
AV4
AV1

BB5
BB4
AY5
AY2
BA3
BA9
BB9
AW2
AY3
BA7
BB7

BA12
BC11
AY11
BB10
BA10
BB13
BA13
AW10
AY10
AY12
BB12

AT15
AP15
AV13
AM13
AT13
AP17
AR17
AM15
AP13
AV15
AM17

AU35
AW35
AT34
AP32
AV34
AU37
AU39
AV32
AT32
AR34
AV38

AN40
AP41
AP42
AP39
AP40
AM41
AM42
AR41
AR42
AN43
AM40

AG42
AG41
AG40
AL39
AK40
AF39
AE40
AL41
AL42
AF41
AF42

AC42
AC41
AC40
AD40
AD43
AA39
AA40
AE42
AE41
AB41
AB42

DQSA0

-DQSA0
DMA0
MDA0
MDA1
MDA2
MDA3
MDA4
MDA5
MDA6
MDA7

DQSA1

-DQSA1
DMA1

MDA8
MDA9
MDA10
MDA11
MDA12
MDA13
MDA14
MDA15

DQSA2

-DQSA2
DMA2
MDA16
MDA17
MDA18
MDA19
MDA20
MDA21
MDA22
MDA23

DQSA3

-DQSA3
DMA3
MDA24
MDA25
MDA26
MDA27
MDA28
MDA29DCLKA4
MDA30
MDA31

DQSA4

-DQSA4
DMA4
MDA32
MDA33
MDA34
MDA35
MDA36
MDA37
MDA38
MDA39

DQSA5

-DQSA5
DMA5
MDA40
MDA41
MDA42
MDA43
MDA44
MDA45
MDA46
MDA47

DQSA6

-DQSA6
DMA6
MDA48
MDA49
MDA50
MDA51
MDA52
MDA53
MDA54
MDA55

DQSA7

-DQSA7
DMA7
MDA56
MDA57
MDA58
MDA59
MDA60
MDA61
MDA62
MDA63

4

MAAB0
MAAB1
MAAB2
MAAB3
MAAB4
MAAB5
MAAB6
MAAB7
MAAB8
MAAB9
MAAB10
MAAB11
MAAB12
MAAB13

-SWEB

-SWEB15,16

SBAB015,16
SBAB115,16
SBAB215,16

-CSB015,16

-CSB115,16

-CSB215,16

-CSB315,16

CKEB015,16
CKEB115,16
CKEB215,16
CKEB315,16

DDRVREFB

-SCASB

-SRASB

SBAB0
SBAB1
SBAB2

-CSB0

-CSB1

-CSB2

-CSB3

CKEB0
CKEB1
CKEB2
CKEB3

MODT_B0
MODT_B1
MODT_B2
MODT_B3

DCLKB0

-DCLKB0
DCLKB1

-DCLKB1
DCLKB2

-DCLKB2
DCLKB3

-DCLKB3
DCLKB4

-DCLKB4
DCLKB5

-DCLKB5

SBCB0
SBCB1
SBCB2
SBCB3
SBCB4
SBCB5
SBCB6
SBCB7
DQSB8

-DQSB8

TP3

SMRCOMPP
SMRCOMPN

SC1

0.1U/6/Y/25V/X

-SCASB15,16

-SRASB15,16

DCLKB015

-DCLKB015
DCLKB115

-DCLKB115
DCLKB215

-DCLKB215
DCLKB315

-DCLKB315
DCLKB415

-DCLKB415
DCLKB515

-DCLKB515

3

U2G

AW23

SBMA0

BA22

SBMA1

BB22

SBMA2

BB21

SBMA3

BA21

SBMA4

AY21

SBMA5

BC20

SBMA6

BA19

SBMA7

AY20

SBMA8

AY19

SBMA9

BB23

SBMA10

BB18

SBMA11

BA18

SBMA12

AV40

SBMA13

BA41

SBWE*

AW42

SBCAS*

BB40

SBRAS*

BA23

SBBA0

AY23

SBBA1

BB17

SBBA2

BA40

SBCS0*

AU40

SBCS1*

AW40

SBCS2*

AU41

SBCS3*

AY16

SBCKE0

BA17

SBCKE1

AY17

SBCKE2

BA14

SBCKE3

AY42

SBODT0

AV43

SBODT1

AW41

SBODT2

AU42

SBODT3

AM29

SBCK0

AM27

SBCK0*

AJ9

SBCK1

AJ11

SBCK1*

AL38

SBCK2

AL36

SBCK2*

AP26

SBCK3

AR26

SBLK3*

AJ7

SBCK4

AJ6

SBCK4*

AJ38

SBCK5

AJ36

SBCK5*

AM24

SBCB0

AM23

SBCB1

AV24

SBCB2

AM26

SBCB3

AM21

SBCB4

AN23

SBCB5

AP24

SBCB6

AT24

SBCB7

AR23

SBDQS8

AP23

SBDQS8*

AG3

SMVREF1

Al17

RSV_TP(3)

AK17

RSV_TP(2)

AE2

SM_OCDCOMP_1

AF3

SM_OCDCOMP_0

AG2

SM_RCOMP1

AF1

SM_RCOMP0

Glenwood/[10HB1-032965-10R]

SBDQS0

SBDQS0*

SBDM0
SBDQ0
SBDQ1
SBDQ2
SBDQ3
SBDQ4
SBDQ5
SBDQ6
SBDQ7

SBDQS1

SBDQS1*

SBDM1
SBDQ8

SBDQ9
SBDQ10
SBDQ11
SBDQ12
SBDQ13
SBDQ14
SBDQ15

SBDQS2

SBDQS2*

SBDM2
SBDQ16
SBDQ17
SBDQ18
SBDQ19
SBDQ20
SBDQ21
SBDQ22
SBDQ23

SBDQS3

SBDQS3*

SBDM3
SBDQ24
SBDQ25
SBDQ26
SBDQ27
SBDQ28
SBDQ29
SBDQ30
SBDQ31

SBDQS4

SBDQS4*

SBDM4
SBDQ32
SBDQ33
SBDQ34
SBDQ35
SBDQ36
SBDQ37
SBDQ38
SBDQ39

SBDQS5

SBDQS5*

SBDM5
SBDQ40
SBDQ41
SBDQ42
SBDQ43
SBDQ44
SBDQ45
SBDQ46
SBDQ47

SBDQS6

SBDQS6*

SBDM6
SBDQ48
SBDQ49
SBDQ50
SBDQ51
SBDQ52
SBDQ53
SBDQ54
SBDQ55

SBDQS7

SBDQS7*

SBDM7
SBDQ56
SBDQ57
SBDQ58
SBDQ59
SBDQ60
SBDQ61
SBDQ62
SBDQ63

AM2
AM3
AM5
AK2
AL3
AN1
AP3
AK3
AL2
AM4
AP4

AG6
AG8
AG9
AF9
AG11
AL10
AL12
AF11
AJ12
AL9
AL7

AR6
AR7
AP8
AM10
AP6
AW7
AU7
AM6
AM8
AP9
AV6

AR10
AR12
AV9
AT10
AU10
AN12
AR13
AR9
AV7
AV12
AM11

AT29
AV29
AR29
AR27
AN29
AR31
AM31
AP27
AU27
AP31
AU31

AP35
AM35
AR38
AP36
AP37
AM33
AJ31
AR35
AU38
AM38
AN32

AG34
AG32
AJ39
AJ32
AJ34
AF32
AF34
AL32
AL34
AG35
AD32

AD36
AD39
AD37
AC32
AD34
Y32
AA32
AF35
AF37
AC34
AC35

DQSB0

-DQSB0
DMB0
MDB0
MDB1
MDB2
MDB3
MDB4
MDB5
MDB6
MDB7

DQSB1

-DQSB1
DMB1
MDB8
MDB9
MDB10
MDB11
MDB12
MDB13
MDB14
MDB15

DQSB2

-DQSB2
DMB2
MDB16
MDB17
MDB18
MDB19
MDB20
MDB21
MDB22
MDB23

DQSB3

-DQSB3
DMB3
MDB24
MDB25
MDB26
MDB27
MDB28
MDB29
MDB30
MDB31

DQSB4

-DQSB4
DMB4
MDB32
MDB33
MDB34
MDB35
MDB36
MDB37
MDB38
MDB39

DQSB5

-DQSB5
DMB5
MDB40
MDB41
MDB42
MDB43
MDB44
MDB45
MDB46
MDB47

DQSB6

-DQSB6
DMB6
MDB48
MDB49
MDB50
MDB51
MDB52
MDB53
MDB54
MDB55

DQSB7

-DQSB7
DMB7
MDB56
MDB57
MDB58
MDB59
MDB60
MDB61
MDB62
MDB63

2

MODT_B[0..3]

MODT_B[0..3] 15,16

R61

0/SHT/X

DDR18V

DDR18V

DDR18V

MAAB[0..13]15,16

MAAA[0..13]14,16

-DQSB[0..8]15

MDB[0..63]15
DQSB[0..8]15

MDA[0..63]14

DQSA[0..8]14

-DQSA[0..8]14

SACB[0..7]14

R59
1K/6/1

R60
1K/6/1

R62
1K/6/1/X

R63
1K/6/1/X

R64 80.6/6/1
BC26

0.1U/6/Y5V/25V/Z

R65 80.6/6/1

SBCB[0..7]15

DMB[0..7]15

DMA[0..7]14

DDRVREFA

BC22

1U/6/Y5V/10V/Z

DDRVREFB

BC24

1U/6/Y5V/16V/Z

1

BC23

0.1U/6/Y5V/25V/Z

BC25

0.1U/6/Y5V/25V/Z

SMRCOMPN

SMRCOMPP

SBCB[0..7]

-DQSB[0..8]
MAAB[0..13]
DMB[0..7]
MDB[0..63]
DQSB[0..7]
MAAA[0..13]
DMA[0..7]
MDA[0..63]
DQSA[0..7]

-DQSA[0..8]
SACB[0..7]

2

NB_HEATSI/[12SP2-04F003-61]

5

4

3

2

Title

Size Document Number Rev
Custom

Date: Sheet

GIGABYTE TECHNOLOGY

GMCH-DDRII

8I955X DUAL GRAPHIC

of

1

945Wednesday, August 24, 2005

1.0

5

D D

4

3

2

1

R1583 0/6

R1584 0/6

R66

L3

co-layout

EXP_A_TXP[0..15]
EXP_A_TXN[0..15]

EXP_A_RXP[0..15]
EXP_A_RXN[0..15]

0/1210/X

100nH/0302/1.4A/S/X

+

U2B

EXP_A_RXP0
EXP_A_RXN0
EXP_A_RXP1
EXP_A_RXN1
EXP_A_RXP2
EXP_A_RXN2
EXP_A_RXP3
EXP_A_RXN3
EXP_A_RXP4
EXP_A_RXN4
EXP_A_RXP5
EXP_A_RXN5
EXP_A_RXP6
EXP_A_RXN6

C C

SRCCLK_MCH22

-SRCCLK_MCH22

B B

EXP_A_RXP7
EXP_A_RXN7
EXP_A_RXP8
EXP_A_RXN8
EXP_A_RXP9
EXP_A_RXN9
EXP_A_RXP10
EXP_A_RXN10
EXP_A_RXP11
EXP_A_RXN11
EXP_A_RXP12
EXP_A_RXN12
EXP_A_RXP13
EXP_A_RXN13
EXP_A_RXP14
EXP_A_RXN14
EXP_A_RXP15
EXP_A_RXN15

GRCOMP

G12

EXPARXP0

F12

EXPARXN0

A11

EXPARXP1

B10

EXPARXN1

J13

EXPARXP2

H13

EXPARXN2

E10

EXPARXP3

F10

EXPARXN3

J9

EXPARXP4

H10

EXPARXN4

F7

EXPARXP5

F9

EXPARXN5

C4

EXPARXP6

D3

EXPARXN6

G6

EXPARXP7

J6

EXPARXN7

E2

EXPARXP8

F1

EXPARXN8

K9

EXPARXP9

K8

EXPARXN9

M6

EXPARXP10

M7

EXPARXN10

K2

EXPARXP11

L1

EXPARXN11

R11

EXPARXP12

R10

EXPARXN12

R8

EXPARXP13

R7

EXPARXN13

P2

EXPARXP14

T1

EXPARXN14

V9

EXPARXP15

V10

EXPARXN15

AC12

EXPCOMPO

AC11

EXPCOMPI

B14

GCLKP

B16

GCLKN

Glenwood/[10HB1-032965-10R]

EXPATXP0
EXPATXN0
EXPATXP1
EXPATXN1
EXPATXP2
EXPATXN2
EXPATXP3
EXPATXN3
EXPATXP4
EXPATXN4
EXPATXP5
EXPATXN5
EXPATXP6
EXPATXN6
EXPATXP7
EXPATXN7
EXPATXP8
EXPATXN8
EXPATXP9

EXPATXN9
EXPATXP10
EXPATXN10
EXPATXP11
EXPATXN11
EXPATXP12
EXPATXN12
EXPATXP13
EXPATXN13
EXPATXP14
EXPATXN14
EXPATXP15
EXPATXN15

DMITXP0
DMITXN0
DMITXP1
DMITXN1
DMITXP2
DMITXN2
DMITXP3

DMITXN3
DMIRXP0
DMIRXN0
DMIRXP1
DMIRXN1
DMIRXP2
DMIRXN2
DMIRXP3
DMIRXN3

D14
C13
B13
B12
D12
D11
C10
C9
A9
B7
D7
D6
A6
B5
F4
G4
G2
J1
J3
K4
L4
M4
M2
N2
N3
P4
T4
U4
U2
V2
V3
W4

W2
Y1
AA2
AB1
AA7
AA6
AB3
AC4
V6
V7
AA9
AA10
AA4
Y4
AC9
AC8

EXP_A_TXP0
EXP_A_TXN0
EXP_A_TXP1
EXP_A_TXN1
EXP_A_TXP2
EXP_A_TXN2
EXP_A_TXP3
EXP_A_TXN3
EXP_A_TXP4
EXP_A_TXN4
EXP_A_TXP5
EXP_A_TXN5
EXP_A_TXP6
EXP_A_TXN6
EXP_A_TXP7
EXP_A_TXN7
EXP_A_TXP8
EXP_A_TXN8
EXP_A_TXP9
EXP_A_TXN9
EXP_A_TXP10
EXP_A_TXN10
EXP_A_TXP11

EXP_A_TXN11
EXP_A_TXP12
EXP_A_TXN12
EXP_A_TXP13
EXP_A_TXN13
EXP_A_TXP14
EXP_A_TXN14
EXP_A_TXP15
EXP_A_TXN15

DMI_0TXP
DMI_0TXN
DMI_1TXP
DMI_1TXN
DMI_2TXP
DMI_2TXN
DMI_3TXP
DMI_3TXN

DMI_0RXP
DMI_0RXN
DMI_1RXP
DMI_1RXN
DMI_2RXP
DMI_2RXN
DMI_3RXP
DMI_3RXN

DMI_0TXP 18
DMI_0TXN 18
DMI_1TXP 18
DMI_1TXN 18
DMI_2TXP 18
DMI_2TXN 18
DMI_3TXP 18
DMI_3TXN 18
DMI_0RXP 18
DMI_0RXN 18
DMI_1RXP 18
DMI_1RXN 18
DMI_2RXP 18
DMI_2RXN 18
DMI_3RXP 18
DMI_3RXN 18

VCC1_5

1

EC9

100U/D/10V/57

VCC1_5PCIEX

R67

24.9/6/1

GRCOMP

EXP_A_TXP[0..15] 17
EXP_A_TXN[0..15] 17

EXP_A_RXP[0..15] 17
EXP_A_RXN[0..15] 17

VCC1_5PCIEX

BC27

10U/12/X5R/6.3V/K

BC28

10U/12/X5R/6.3V/K

VCC1_5PCIEX 13

A A

GIGABYTE TECHNOLOGY

Title

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Custom

5

4

3

2

Date: Sheet

GMCH-PCI E & DMI

8I955X DUAL GRAPHIC

of

1

10 45Wednesday, August 24, 2005

1.0

5

4

3

2

1

U2H

EXP_SLR

-EXTTS

M20 V31

EXTTS* RSV

D19

RSVD

N21

RSV_TP(9)

F20

RSV_TP(8)

L21

RSV_TP(7)

K21

EXP_SLR

C19

RSV_TP(5)

H20

XORTEST

H20

ALLZTEST

L20

BSEL2

H21

BSEL1

F21

BSEL0

PWROK

RSTIN#

ICH_SYNC#

AD1
AE3

N23

-PFMRST

PWROK1

C21

10P/4/NPO/50V/J

PWROK1 19,34,35

-ICHSYNC

-ICHSYNC 19

D D

DDR25V_MCH13

R68 10K/6

BSEL26
BSEL16
BSEL06

Glenwood/[10HB1-032965-10R]

EXP_SLR

C C

C22

22P/4/NPO/50V/J

R69 1K/6/X

-PFMRST

-PFMRST 19,26,35

+12V

BC29

R71
0/6/X

NB_FAN

NB HEAT SINK FAN

2N7002/S

1

Q4

SOT23

R70

8.2K/6

1 2
3 4
5 6
7 8

RN7

8.2K/8P4R/6

132

Q3

2907/[10IT1-002907-02_10IT1-002907-03_10IT1-002907-04_10IT1-002907-05_10IT1-002907-06]

1

+

CE1

B B

VCC

R72

8.2K/6

FANPWM235

R73 0/6S/X

3

D

GS

2

22U/D/25V/57/X

0.1U/6/Y5V/25V/Z
POH/1*2/WHITE

A A

Title

Size Document Number Rev
Custom

5

4

3

2

Date: Sheet

GIGABYTE TECHNOLOGY

GMCH-INTERNAL VGA

8I955X DUAL GRAPHIC

1

of

11 45Wednesday, August 24, 2005

1.0

5

U2C

AA31

VSS

AA30

VSS

AA22

VSS

AA11

VSS

AA8

VSS

AA5

VSS

AA3

VSS

Y42

VSS

Y39

VSS

Y37

VSS

Y35

AC37
AC36
AC33
AC31
AC22
AC14
AC13
AC10

AB43
AB23
AB21

AA36
AA33

AF43
AF38
AF36
AF33
AF31
AF14
AF13
AF12
AF10

AD42

AJ14
AJ13
AJ10

AH42

AG39
AG38
AG37
AG36
AG33
AG31
AG14
AG13
AG12
AG10

AL21
AL20
AL18
AL13
AL11

AK30
AK29
AK18

AJ37
AJ35
AJ33

AJ30
AP34
AP29
AP20
AP12
AP10

AN42
AN31
AN27
AN26
AN24
AN21
AN20
AN18
AN17

VSS

Y33

VSS

Y31

VSS

Y11

VSS

Y8

VSS

Y5

VSS

Y2

VSS

W3

VSS

V43

VSS

V39

VSS

V38

VSS

V37

VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS

AC7

VSS

AC6

VSS

AC5

VSS

AC3

VSS

AC2

VSS
VSS
VSS
VSS

AB2

VSS
VSS
VSS

AG7

VSS

AG5

VSS

AG4

VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS

AF8

VSS

AF7

VSS

AF6

VSS

AF5

VSS

AF2

VSS

AE4

VSS
VSS
VSS
VSS
VSS

AJ8

VSS

AJ5

VSS
VSS

AH4

VSS

AH2

VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS

AL8

VSS

AL6

VSS

AL5

VSS

AL1

VSS
VSS
VSS
VSS

AK4

VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS

AP7

VSS

AP5

VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS

D D

C C

B B

A A

Glenwood/[10HB1-032965-10R]

5

4

3

2

1

U2E

AN15

VSS

AN13

VSS

AT31

VSS

AT27

VSS

AT26

VSS

AT23

VSS

AT21

VSS

AT18

VSS

AT17

VSS

AT12

VSS

AR43

VSS

AR39

VSS

AR37

VSS

AR32

VSS

AR24

VSS

AR20

VSS

AR15

VSS

AN4

VSS

AN2

VSS

AM39

VSS

AM37

VSS

AM34

VSS

AM9

VSS

AM7

VSS

AL43

VSS

AL35

VSS

AL33

VSS

AL31

VSS

AL27

VSS

AL26

VSS

AM36

VSS

AL24

VSS

AL23

VSS

AL37

VSS

AL29

VSS

AR5

VSS

AR1

VSS

AP38

VSS

AV21

VSS

AV17

VSS

AV10

VSS

AV2

VSS

AU34

VSS

AU32

VSS

AU29

VSS

AU26

VSS

AU24

VSS

AU23

VSS

AU21

VSS

AU20

VSS

AU17

VSS

AU15

VSS

AU13

VSS

AU12

VSS

AU9

VSS

AU6

VSS

BC9

VSS

BB41

VSS

BB39

VSS

BB34

VSS

BB19

VSS

BB14

VSS

BB11

VSS

BB6

VSS

BA42

VSS

BA4

VSS

AW21

VSS

AW13

VSS

AW12

VSS

AW9

VSS

AV37

VSS

AV35

VSS

AV27

VSS

AV26

VSS

AD38

VSS

AD35

VSS

AD33

VSS

AD31

VSS

AD30

VSS

AD14

VSS

AD13

VSS

AD12

VSS

AD11

VSS

AD10

VSS

AD9

VSS

AD8

VSS

AD7

VSS

AD6

VSS

AD5

VSS

AD4

VSS

AD2

VSS

AC39

VSS

AC38

VSS

AK14

VSS

4

D20
D10

D5

D2
C40
C22
C14
C12

C7

C5

C3
B38
B33
B28
B23
B22
B21

B9

B6

B4
A35
A31
A13
G24
G21
G20
G13
G10

G9

G7

G5

G3
F42
F34
F26

F6

F2
E35
E32
E21
E20
E12

E9

E7

E4

E3
D21

K7

K6

K5

K3

J43
J38
J29
J24
J21
J12
J10

J7
J5

J2
H32
H27
H26
H12
G38
G35
G32
G31
G29
G27

R6

R5
P30
P26
P24
P23
P21
P20

P3
N43
N39
N36
N33
N31
N29
N27
N26
N24
N20

N5

N1
M37
M35
V36
V34
V30
V11

V8

V5

V1
U38
U36
U33
U31
U11

U8

U5

U3
T42

T2
R39
R37
R34
R31
R30
R12

R9
B11

3

VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS

RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD

Glenwood/[10HB1-032965-10R]

BC4

VSS

AY1

VSS

AJ18

VSS

AJ17

VSS

AJ15

VSS

AG29

VSS

AG18

VSS

AG17

VSS

AG15

VSS

AF25

VSS

AF23

VSS

AF21

VSS

AF19

VSS

AE24

VSS

AE22

VSS

AE20

VSS

AE18

VSS

AD25

VSS

AD23

VSS

AD21

VSS

AD19

VSS

AC24

VSS

AC20

VSS

AC18

VSS

AB25

VSS

AB19

VSS

AA24

VSS

AA20

VSS

AA18

VSS

Y29

VSS

Y25

VSS

Y23

VSS

Y21

VSS

W26

VSS

W22

VSS

W20

VSS

V25

VSS

U29

VSS

R29

VSS

D43

VSS

D1

VSS

A40

VSS

A4

VSS

W24

VSS

A42

NC

B2

NC

B3

NC

B41

NC

B42

NC

B43

NC

C2

NC

C42

NC

P29

NC

BA2

NC

BB1

NC

BB2

NC

BB3

NC

BB43

NC

BC1

NC

BC2

NC

BC42

NC

BC43

NC

A43
AJ27
AJ26
AJ24
AJ23
AJ21
AG27
AG26
AG25
AG24
AG23
AG22
AG21

M21

VSS

M11

VSS

M10

VSS

M9

VSS

M8

VSS

M5

VSS

M3

VSS

L42

VSS

L31

VSS

L29

VSS

L26

VSS

L24

VSS

L12

VSS

L2

VSS

K39

VSS

K37

VSS

K34

VSS

K32

VSS

K27

VSS

K20

VSS

K13

VSS

K12

VSS

K10

VSS

Title

Size Document Number Rev
Custom

2

Date: Sheet

GIGABYTE TECHNOLOGY

GMCH-GND

8I955X DUAL GRAPHIC

12 45Wednesday, August 24, 2005

1

of

1.0

5

U2D

VCC1_5

D D

C C

B B

A A

AK27

VCC

AK26

VCC

AK24

VCC

AK23

VCC

AK21

VCC

AK20

VCC

AG30

VCC

AF30

VCC

AC30

VCC

AC23

VCC

AC21

VCC

AB22

VCC

AA23

VCC

AA21

VCC

Y30

VCC

U30

VCC

P18

VCC

P17

VCC

N18

VCC

N17

VCC

M18

VCC

M17

VCC

L18

VCC

L17

VCC

K18

VCC

K17

VCC

J18

VCC

J17

VCC

H18

VCC

H17

VCC

G18

VCC

G17

VCC

F18

VCC

F17

VCC

E18

VCC

AA17

VCC

AA15

VCC

Y27

VCC

Y26

VCC

Y24

VCC

Y22

VCC

Y20

VCC

Y19

VCC

Y18

VCC

Y17

VCC

Y15

VCC

W27

VCC

W25

VCC

W21

VCC

W19

VCC

W23

VCC

W18

VCC

W17

VCC

V29

VCC

V27

VCC

V26

VCC

V24

VCC

V23

VCC

V22

VCC

V21

VCC

V20

VCC

V19

VCC

V18

VCC

V17

VCC

V15

VCC

U27

VCC

U26

VCC

U25

VCC

U24

VCC

U23

VCC

U22

VCC

U21

VCC

U20

VCC

U19

VCC

U18

VCC

U17

VCC

U15

VCC

R26

VCC

R24

VCC

R23

VCC

R21

VCC

R20

VCC

R18

VCC

R17

VCC

AJ29

VCC

AJ20

VCC

AG20

VCC

AG19

VCC

AF29

VCC

AF27

VCC

AF26

VCC

AF24

VCC

AF22

VCC

AF20

VCC

AF18

VCC

AF17

VCC

AF15

VCC

AE27

VCC

AE26

VCC

AE25

VCC

AE23

VCC

AE21

VCC

AE19

VCC

AE17

VCC

AD29

VCC

AD27

VCC

AD24

VCC

AD22

VCC

AD20

VCC

AD18

VCC

AD17

VCC

AD15

VCC

AC29

VCC

AC27

VCC

AC26

VCC

AC25

VCC

AC19

VCC

AC17

VCC

AC15

VCC

AB27

VCC

AB26

VCC

AB24

VCC

AB20

VCC

AB18

VCC

AB17

VCC

AA29

VCC

AA27

VCC

AA26

VCC

AA25

VCC

AA19

VCC

AD26

VCC

Glenwood/[10HB1-032965-10R]

5

VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM
VCCSM

VCC2
VCCA_MPLL
VCCA_HPLL

VCCA_EXPPLL

VCCA_3GBG

VCC_EXP

VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP
VCC_EXP

BC40
AY43
BC35
BC31
BC26
BC22
BC18
BC16
BC13
BB42
BB38
BB33
BB28
BB24
BB20
BB16
AY41
AY14
AW34
AW31
AW29
AW26
AW24
AW20
AW18
AW17
AW15
AV42
AV31
AV23

M23

VTT

L23

VTT

K23

VTT

J23

VTT

H23

VTT

G23

VTT

F27

VTT

F23

VTT

E27

VTT

E26

VTT

E24

VTT

E23

VTT

D25

VTT

D24

VTT

D23

VTT

C26

VTT

C25

VTT

C23

VTT

B26

VTT

B25

VTT

B24

VTT

A26

VTT

A24

VTT

B19
C21
A22
B20
A20

R15

AA14
AA13
AA12
Y14
Y13
Y12
Y10
Y9
Y7
Y6
V14
V13
V12
U14
U13
U12
U10
U9
U7
U6
R14
R13
P15
P14
N15
N13
N12
N11
N10
N9
N8
N7
N6
M15
M13
L15
L13
K15
J15
H15
G15
F15
F13
E17
E15
E13
D17
D16
C18
C17
B18
B17
A18
A16

VTT_GMCH

DDR25V_MCH
VCCA_MPLL
VCCA_HPLL
VCCA_GPLL
DDR25V_DAC

4

DDR18V

VCC1_5PCIEX 10

4

DDR25V_MCH11

VCC1_5

VCC1_5

VCC1_5

L4

1uH/[10LI2-07100B-01_10LI2-041001-04]

VCC1_5

10uH/8/S

L6

FB1

30/8/S/4A

R74 0.51/6/1
R75 0.51/6/1

R76 0.51/6/1

L5

10uH/8/S

1

+

EC11

100U/D/10V/57

3

10U/8/Y5V/10V/Z

BC32

10U/12/X5R/6.3V/K

VCCA_MPLL

C36
1U/6/Y5V/10V/Z

DDR25V_DAC

C37

0.1U/6/Y5V/25V/Z

3

BC30

BC31

10U/8/Y5V/10V/Z

VCCA_GPLL

C29
1U/6/Y5V/10V/Z

VCCA_HPLL

C30

0.1U/6/Y5V/25V/Z

C38

0.01U/6/Y5V/50V/Z

DDR25V_DAC

VTT_GMCH

2

C23

0.1U/6/Y5V/25V/Z

C24

0.1U/6/Y5V/25V/Z

VCC1_5

SC2

0.1U/6/Y/25V/X

DDR18V DDR18V

BC33
1U/6/Y5V/10V/Z

DDR18V

BC39

0.1U/6/Y5V/25V/Z

C31

4.7U/8/Y5V/10V/Z

VCC3

VCC1_5

2

C25

0.1U/6/Y5V/25V/Z

SC3

0.1U/6/Y/25V/X

BC34
10U/8/Y5V/10V/Z

BC40

0.1U/6/Y5V/25V/Z

VCC3

C35
1N/4/X5R/50V/X

Q5

BAT54C/SOT23/200mA

1
2
3 4

DDR25V_MCH

1

VTT_GMCH

C26
10U/8/Y5V/10V/Z

SC4

0.1U/6/Y/25V/X

BC35
10U/8/Y5V/10V/Z

U7

NCP500SN25T1/[10GL4-15B252-11_10GL4-15B252-10_10GL4-029167-21]

SC5

0.1U/6/Y/25V/X

BC36
1U/6/Y5V/10V/Z

DDR25V_MCH

DDR25V_MCH

5

IN

OUT
GND
EN BYP

Title

Size Document Number Rev
Custom

Date: Sheet

C32

0.1U/6/Y5V/25V/Z

C34

0.01U/6/Y5V/50V/Z

GIGABYTE TECHNOLOGY

8I955X DUAL GRAPHIC

VCC1_5

1

+

EC10
1000U/D/6.3V/8C/30m

BC37
10U/8/Y5V/10V/Z

GMCH-PWR

C27
10U/8/Y5V/10V/Z

BC38
10U/8/Y5V/10V/Z

C33

10U/12/X5R/6.3V/K

1

C28
10U/8/Y5V/10V/Z

13 45Wednesday, August 24, 2005

1.0

of

8

7

6

5

4

3

2

1

DDRII1

2

VSS

5

VSS

8

VSS

11

VSS

14

VSS

17

VSS

20

VSS

23

VSS

26

VSS

29

VSS

D D

C C

DDR18V

VREF_DDRA

B B

C39

0.1U/6/Y5V/25V/Z

VCC3

SMBCLK15,17,19,22,24,28,39,40,43

SMBDATA15,17,19,22,24,28,39,40,43

SBAA19,16
SBAA09,16

CKEA19,16
CKEA09,16

-CSA19,16

-CSA09,16

-DCLKA29
DCLKA29

-DCLKA19
DCLKA19

-DCLKA09
DCLKA09

MAAA[0..13]9,16

A A

SBAA29,16 SBAA29,16

-SCASA9,16

-SRASA9,16

-SWEA9,16

DDR18V

R78
75/6/1

VREF_DDRA

R79
75/6/1

8

32

VSS

35

VSS

38

VSS

41

VSS

44

VSS

47

VSS

50

VSS

65

VSS

66

VSS

79

VSS

82

VSS

85

VSS

88

VSS

91

VSS

94

VSS

97

VSS

100

VSS

103

VSS

106

VSS

109

VSS

112

VSS

115

VSS

118

VSS

121

VSS

124

VSS

127

VSS

130

VSS

133

VSS

136

VSS

139

VSS

142

VSS

145

VSS

148

VSS

151

VSS

154

VSS

157

VSS

160

VSS

163

VSS

166

VSS

169

VSS

198

VSS

201

VSS

204

VSS

207

VSS

210

VSS

213

VSS

216

VSS

219

VSS

222

VSS

225

VSS

228

VSS

231

VSS

234

VSS

237

VSS

51

VDDQ

56

VDDQ

62

VDDQ

72

VDDQ

75

VDDQ

78

VDDQ

191

VDDQ

194

VDDQ

181

VDDQ

175

VDDQ

170

VDDQ

53

VDD

59

VDD

64

VDD

197

VDD

69

VDD

172

VDD

187

VDD

184

VDD

178

VDD

189

VDD

67

VDD

18

RC1

55

RC0

238

VREF_DDRA VREF_DDRA

VDDSPD

1

VREF

SMBCLK

120

SCL

SMBDATA

119

SDA

101

SA2

240

SA1

239

SA0

SBAA1

190

BA1

SBAA0

71

BA0

CKEA1

171

CKE1

CKEA0

52

CKE0

76

S1*

193

S0*

-DCLKA2

221

CK2*/RFU

DCLKA2

220

CK2/RFU

-DCLKA1

138

CK1*/RFU

DCLKA1

137

CK1/RFU

-DCLKA0

186

CK0*

DCLKA0

185

CK0

MAAA0

188

A0

183

A1

MAAA2

63

A2

MAAA3

182

A3

MAAA4

61

A4

MAAA5

60

A5

MAAA6

180

A6

MAAA7

58

A7

179

A8

MAAA9

177

A9

MAAA10

70

A10/AP

MAAA11

57

A11

MAAA12

176

A12

MAAA13 MAAA13

196

A13

174

A14

173

A15

SBAA2 SBAA2

54

A16/BA2

-SCASA

74

CAS*

-SRASA

192

RSA*

-SWEA

73

WE*

DDR2/YELLOW

7

6

NC/TEST

ODT1
ODT0

CB(0)
CB(1)
CB(2)
CB(3)
CB(4)
CB(5)
CB(6)
CB(7)

DQS(0)

DQS*(0)

DQS(1)

DQS*(1)

DQS(2)

DQS*(27)

DQS(3)

DQS*(3)

DQS(4)

DQS*(4)

DQS(5)

DQS*(5)

DQS(6)

DQS*(6)

DQS(7)

DQS*(7)

DQS8

DQS8*

DM0/DQS9

NC/DQS9*

DM1/DQS10

NC/DQS10*

DM2/DQS11

NC/DQS11*

DM3/DQS12

NC/DQS12*

DM4/DQS13

NC/DQS13*

DM5/DQS14

NC/DQS14*

DM6/DQS15

NC/DQS15*

DM7/DQS16

NC/DQS16*

DM8/DQS17

NC/DQS17*

DQ(0)
DQ(1)
DQ(2)
DQ(3)
DQ(4)
DQ(5)
DQ(6)
DQ(7)
DQ(8)

DQ(9)
DQ(10)
DQ(11)
DQ(12)
DQ(13)
DQ(14)
DQ(15)
DQ(16)
DQ(17)
DQ(18)
DQ(19)
DQ(20)
DQ(21)
DQ(22)
DQ(23)
DQ(24)
DQ(25)
DQ(26)
DQ(27)
DQ(28)
DQ(29)
DQ(30)
DQ(31)
DQ(32)
DQ(33)
DQ(34)
DQ(35)
DQ(36)
DQ(37)
DQ(38)
DQ(39)
DQ(40)
DQ(41)
DQ(42)
DQ(43)
DQ(44)
DQ(45)
DQ(46)
DQ(47)
DQ(48)
DQ(49)
DQ(50)
DQ(51)
DQ(52)
DQ(53)
DQ(54)
DQ(55)
DQ(56)
DQ(57)
DQ(58)
DQ(59)
DQ(60)
DQ(61)
DQ(62)
DQ(63)

68

NC

102
19

NC

MODT_A1

77

MODT_A0

195

SACB0

42

SACB1

43

SACB2

48

SACB3

49

SACB4

161

SACB5

162

SACB6

167

SACB7

168

DQSA0

7

-DQSA0

6

DQSA1

16

-DQSA1

15

DQSA2

28

-DQSA2

27

DQSA3

37

-DQSA3

36

DQSA4

84

-DQSA4

83

DQSA5

93

-DQSA5

92

DQSA6

105

-DQSA6

104

DQSA7

114

-DQSA7

113

DQSA8

46

-DQSA8

45

DMA0

125
126

DMA1

134
135

DMA2

146
147

DMA3

155
156

DMA4

202
203

DMA5

211
212

DMA6

223
224

DMA7

232
233

164
165

MDA0

3

MDA1

4

MDA2

9

MDA3

10

MDA4

122

MDA5

123

MDA6

128

MDA7

129

MDA8

12

MDA9

13

MDA10

21

MDA11

22

MDA12

131

MDA13

132

MDA14

140

MDA15

141

MDA16

24

MDA17

25

MDA18

30

MDA19

31

MDA20

143

MDA21

144

MDA22

149

MDA23

150

MDA24

33

MDA25

34

MDA26

39

MDA27

40

MDA28

152

MDA29

153

MDA30

158

MDA31

159

MDA32

80

MDA33

81

MDA34

86

MDA35

87

MDA36

199

MDA37

200

MDA38

205

MDA39

206

MDA40

89

MDA41

90

MDA42

95

MDA43

96

MDA44MAAA1

208

MDA45

209

MDA46

214

MDA47

215

MDA48

98

MDA49

99

MDA50

107

MDA51MAAA8

108

MDA52

217

MDA53

218

MDA54

226

MDA55

227

MDA56

110

MDA57

111

MDA58

116

MDA59

117

MDA60

229

MDA61

230

MDA62

235

MDA63

236

MODT_A[0..3]

-DQSA[0..8]
DQSA[0..8]
DMA[0:7]

SACB[0..7]

5

MDA[0..63] 9

C40

0.1U/6/Y5V/25V/Z

MAAA[0..13]9,16

MODT_A[0..3] 9,16

-DQSA[0..8] 9
DQSA[0..8] 9
DMA[0..7] 9

SACB[0..7] 9

DDR18V

VCC3

SMBCLK

SMBCLK15,17,19,22,24,28,39,40,43

SMBDATA

SMBDATA15,17,19,22,24,28,39,40,43

VCC3

SBAA1

SBAA19,16

SBAA0

SBAA09,16

CKEA3

CKEA39,16

CKEA2

CKEA29,16

-CSA39,16

-CSA29,16

-DCLKA5

-DCLKA59
DCLKA5

DCLKA59

-DCLKA4

-DCLKA49
DCLKA4

DCLKA49

-DCLKA3

-DCLKA39
DCLKA3

DCLKA39

MAAA0
MAAA2

MAAA3
MAAA4
MAAA5
MAAA6
MAAA7

MAAA9
MAAA10
MAAA11
MAAA12

-SCASA

-SCASA9,16

-SRASA

-SRASA9,16

-SWEA

-SWEA9,16

4

DDRII2

2

VSS

5

VSS

8

VSS

11

VSS

14

VSS

17

VSS

20

VSS

23

VSS

26

VSS

29

VSS

32

VSS

35

VSS

38

VSS

41

VSS

44

VSS

47

VSS

50

VSS

65

VSS

66

VSS

79

VSS

82

VSS

85

VSS

88

VSS

91

VSS

94

VSS

97

VSS

100

VSS

103

VSS

106

VSS

109

VSS

112

VSS

115

VSS

118

VSS

121

VSS

124

VSS

127

VSS

130

VSS

133

VSS

136

VSS

139

VSS

142

VSS

145

VSS

148

VSS

151

VSS

154

VSS

157

VSS

160

VSS

163

VSS

166

VSS

169

VSS

198

VSS

201

VSS

204

VSS

207

VSS

210

VSS

213

VSS

216

VSS

219

VSS

222

VSS

225

VSS

228

VSS

231

VSS

234

VSS

237

VSS

51

VDDQ

56

VDDQ

62

VDDQ

72

VDDQ

75

VDDQ

78

VDDQ

191

VDDQ

194

VDDQ

181

VDDQ

175

VDDQ

170

VDDQ

53

VDD

59

VDD

64

VDD

197

VDD

69

VDD

172

VDD

187

VDD

184

VDD

178

VDD

189

VDD

67

VDD

18

RC1

55

RC0

238

VDDSPD

1

VREF

120

SCL

119

SDA

101

SA2

240

SA1

239

SA0

190

BA1

71

BA0

171

CKE1

52

CKE0

76

S1*

193

S0*

221

CK2*/RFU

220

CK2/RFU

138

CK1*/RFU

137

CK1/RFU

186

CK0*

185

CK0

188

A0

183

A1

63

A2

182

A3

61

A4

60

A5

180

A6

58

A7

179

A8

177

A9

70

A10/AP

57

A11

176

A12

196

A13

174

A14

173

A15

54

A16/BA2

74

CAS*

192

RSA*

73

WE*

NC/TEST

ODT1
ODT0

CB(0)
CB(1)
CB(2)
CB(3)
CB(4)
CB(5)
CB(6)
CB(7)

DQS(0)

DQS*(0)

DQS(1)

DQS*(1)

DQS(2)

DQS*(27)

DQS(3)

DQS*(3)

DQS(4)

DQS*(4)

DQS(5)

DQS*(5)

DQS(6)

DQS*(6)

DQS(7)

DQS*(7)

DQS8

DQS8*

DM0/DQS9

NC/DQS9*

DM1/DQS10
NC/DQS10*

DM2/DQS11
NC/DQS11*

DM3/DQS12
NC/DQS12*

DM4/DQS13
NC/DQS13*

DM5/DQS14
NC/DQS14*

DM6/DQS15
NC/DQS15*

DM7/DQS16
NC/DQS16*

DM8/DQS17
NC/DQS17*

DQ(0)
DQ(1)
DQ(2)
DQ(3)
DQ(4)
DQ(5)
DQ(6)
DQ(7)
DQ(8)

DQ(9)
DQ(10)
DQ(11)
DQ(12)
DQ(13)
DQ(14)
DQ(15)
DQ(16)
DQ(17)
DQ(18)
DQ(19)
DQ(20)
DQ(21)
DQ(22)
DQ(23)
DQ(24)
DQ(25)
DQ(26)
DQ(27)
DQ(28)
DQ(29)
DQ(30)
DQ(31)
DQ(32)
DQ(33)
DQ(34)
DQ(35)
DQ(36)
DQ(37)
DQ(38)
DQ(39)
DQ(40)
DQ(41)
DQ(42)
DQ(43)
DQ(44)
DQ(45)
DQ(46)
DQ(47)
DQ(48)
DQ(49)
DQ(50)
DQ(51)
DQ(52)
DQ(53)
DQ(54)
DQ(55)
DQ(56)
DQ(57)
DQ(58)
DQ(59)
DQ(60)
DQ(61)
DQ(62)
DQ(63)

68

NC

102
19

NC

MODT_A3

77

MODT_A2

195

SACB0

42

SACB1

43

SACB2

48

SACB3

49

SACB4

161

SACB5

162

SACB6

167

SACB7

168

DQSA0

7

-DQSA0

6

DQSA1

16

-DQSA1

15

DQSA2

28

-DQSA2

27

DQSA3

37

-DQSA3

36

DQSA4

84

-DQSA4

83

DQSA5

93

-DQSA5

92

DQSA6

105

-DQSA6

104

DQSA7

114

-DQSA7

113

DQSA8

46

-DQSA8

45

DMA0

125
126

DMA1

134
135

DMA2

146
147

DMA3

155
156

DMA4

202
203

DMA5

211
212

DMA6

223
224

DMA7

232
233

164
165

MDA0

3

MDA1

4

MDA2

9

MDA3

10

MDA4

122

MDA5

123

MDA6

128

MDA7

129

MDA8

12

MDA9

13

MDA10

21

MDA11

22

MDA12

131

MDA13

132

MDA14

140

MDA15

141

MDA16

24

MDA17

25

MDA18

30

MDA19

31

MDA20

143

MDA21

144

MDA22

149

MDA23

150

MDA24

33

MDA25

34

MDA26

39

MDA27

40

MDA28

152

MDA29

153

MDA30

158

MDA31

159

MDA32

80

MDA33

81

MDA34

86

MDA35

87

MDA36

199

MDA37

200

MDA38

205

MDA39

206

MDA40

89

MDA41

90

MDA42

95

MDA43

96

MDA44MAAA1

208

MDA45

209

MDA46

214

MDA47

215

MDA48

98

MDA49

99

MDA50

107

MDA51MAAA8

108

MDA52

217

MDA53

218

MDA54

226

MDA55

227

MDA56

110

MDA57

111

MDA58

116

MDA59

117

MDA60

229

MDA61

230

MDA62

235

MDA63

236

MDA[0..63] 9

SMBDATA
SMBCLK

C41

100P/4/NPO/50V/X

C42
100P/4/N/50V/X

DDR2/RED

GIGABYTE TECHNOLOGY

Title

Size Document Number Rev

Custom

3

Date: Sheet

2

DDRII CHANNEL A
8I955X DUAL GRAPHIC 1.0

14 45

of

1