Gigabyte GA-8I925XC-G11C_0505 Schematics

5

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Model Name: 8I925XC-G

SHEET TITLE

01

D D

02
03
04
05
06
07
08
09

C C

10
11
12
13
14

COVER SHEET
BLOCK DIAGRAM
BOM & PCB MODIFY HISTORY
P4_LGA775_A
P4_LGA775_B
P4_LGA775_C
P4_LGA775_D
GMCH-925XE_HOST
GMCH-925XE_DDR
GMCH-925XE_PCI E, DMI
GMCH-925XE_INT
GMCH-925XE_GND
GMCH-925XE_PWR
DDRII CHANNEL A 1,2

Revision 1.1

SHEET TITLE

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

FRONT PANEL
FRONT CONNECTOR

USB
CPU , SYS , PWR FAN & -PROCHOT
AZALIA CODEC ALC880 / CMI 9880
AUDIO JACK 1
AUDIO JACK 2
DISCRETE POWER
TI 1394 A
VRD 10.1
ITE 8712GB
COM_LPT
BOARDCOM 5751 LAN
ITE 8212F GIGARAID
GIGARAID CONNECTOR

15
16
17

B B

18
19
20
21
22
23

24

A A

25

26
27

DDRII CHANNEL B 1,2
DDRII TERMINATATION
PCI EXPRESS*16 SLOT
ICH6 PCI, USB, DMI, LAN
ICH6 IDE, GPIO, SATA, CTRL
ICH6 VCC, GND
FWH
ICS 954148 / AF
PCI EXPRESS*1 SLOT 1,2

PCI SLOT 1, 2,3
H/W MONITOR
IDE
KB_PS2 , FUSEVCC

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42
43
44
45
46
47
48

ATX POWER CONN.

2

Title

Size Document Number Rev
Custom

Date: Sheet

GIGABYTE CORP.

Cover Sheet

8I925XC-G

142Thursday, May 05, 2005

1

of

1.1

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1

BLOCK DIAGRAM

INTEL Pentium4
LGA775

D D

CLOCK GENERATOR

CKVDD = 3.3V

PAGE 24

VCORE = 1.4V
VCC3

PAGE 4, 5, 6,7

VID0~4

DPS

VCORE = 1.40V (2.8GHz)
5VSB,-12V,+12V,VCC,VCC3,3VDUAL

PAGE 46,47,48

CHANNEL A

GAD0~31
ADSTB0,ADSTB0­ADSTB1,ADSTB1-

PCI EXPRESS X16

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

C C

PAGE 19

SBA0~7
SBSTB,SBSTB-

GCBE0~3­ST0~2

AGP BUS

PCI EXPRESS X1 SLOT
1,2,3

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

PAGE 25

MCH
ALDERWOOD

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

HL0~10
CONTROL BUS

ICH6R

PAGE 8 ,9,10,11,12,13

HUB LINK

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

-DQSD0~7
DM0~7

USB PORTS 0~7

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

PAGE 31,36,41

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

PAGE 20,21,22

DDRII SDRAM DIMM X 3

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

PAGE 14,15

CHANNEL B
DDRII SDRAM DIMM X 3

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

PAGE 16,17

IDE Primary

VCC = 5V

PAGE 28

SERIAL ATA

VCC = 5V

PAGE 21

B B

PCI BUS

FWH/HWMO

PCI SLOT 1,2

+12 = 12V

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

AC97/Azalia ALC880

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

AVDD = 5V

PAGE 33

AC97 LINK

MARVELL 88E8001

PAGE 26

LPC BUS

PAGE 36

VCC = 5V
VCC3 = 3V

LPC I/O ITE8712GB-IX

VCC = 5VVCC3 = 3.3V
VBAT = 3V

PAGE 27

PAGE 39

SATA 3114

A A

AUDIO PORTS :

LIN_ OUT
TELE

CD_IN

LINE_IN

AUX_IN

5

FRONT AUDIO

MIC

PAGE 34,35

PAGE 42

FRONT PANEL /CPU FAN

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

4

PAGE 32

3

I/O PORTS :

COMB

COMA IR

LPT

2

PS2

FDD

PAGE 29,40

Title

Size Document Number Rev
Custom

Date: Sheet

GIGABYTE CORP.

BOM & PCB MODIFY HISTORY

8I925XC-G

1

of

242Thursday, May 05, 2005

1.1

5

4

3

2

1

Model Name: 8I925XC-G

Circuit or PCB layout change
for next version

Version: 1.1

PAGE Change Item Reason

D D

Component value change
history

Data Change Item Reason

BOM 10A

09/21/04

10/14/04 CHANGE GREEN_USB TO F_USB1

C C

12/16/04 ADD SPR CIRCUIT

For transient & usb solution

BOM 10B

BOM 10B

將南橋由原來的

ICH6R B1改為B211/17/04

BOM 10D

remove invalid CLK GRN turbo pin11/23/04

BOM 11A

BOM 11B

B B

01/21/05

CHANGE LAN TO BROADCOM 5789

BOM 11C

03/09/05 MOS COST DOWN

BOM 11C

05/05/05

A A

925XC-G FIRST RELEASE 消耗 925X CHIPSET

5

庫存

Title

Size Document Number Rev
Custom

4

3

2

Date: Sheet

GIGABYTE CORP.

BOM & PCB MODIFY HISTORY

8I925XC-G

1

342Thursday, May 05, 2005

1.1

of

5

VCORE

BC1

10U/12/X/6.3V/X

D D

BC2

10U/12/X/6.3V

BC3

10U/12/X/6.3V/X

BC4

10U/12/X/6.3V/X

VCORE

+

100U/2V/SPCAP(10CL3-201000-11)/X

+

EC163

EC164

100U/2V/SPCAP(10CL3-201000-11)/X

4

VCORE

+

100U/2V/SPCAP(10CL3-201000-11)/X

+

EC161

EC162

100U/2V/SPCAP(10CL3-201000-11)/X

VCORE

10U/12/X/6.3V

BC6

3

BC7

10U/12/X/6.3V

BC8

10U/12/X/6.3V/X

BC9

10U/12/X/6.3V

2

1

AB6

AA4
AD6
AA5
AB5
AC5
AB4

AG6
AG4
AG5
AH4
AH5

AC4
AE4
AD5

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#
A17#

W6

A18#

Y6

A19#

Y4

A20#
A21#
A22#
A23#
A24#
A25#
A26#

AF5

A27#

AF4

A28#
A29#
A30#
A31#
A32#
A33#

AJ5

A34#

AJ6

A35#
RSVD
RSVD
ADSTB1#

LGA775

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#

GTLREF
RESET#

RS0#

RS1#

RS2#

D2
C2
D4
H4
G8
B2
C1
E4
AB2
P3
C3
E3
AD3
G7
F2
AB3

U2
U3

F3
G3
G4
H5

J16
H15
H16
J17

H1
G23
B3

F5
A3

-HADS

-BNR

-HIT

-BPRI

-DBSY

-DRDY

-HITM

-IERR

-HINIT

-HLOCK

-HTRDY

-DEFER

-EDRDY

TP_CPU1
TP_CPU2

-BR0
TESTHI8
TESTHI9
TESTHI10

TP_CPU3
TP_CPU4
TP_CPU5
TP_CPU6

GTLREF

-CPURST

-RS0

-RS1

-RS2

-HADS [8]

-BNR [8]

-HIT [8]

-BPRI [8]

-DBSY [8]

-DRDY [8]

-HITM [8]

-HLOCK [8]

-HTRDY [8]

-DEFER [8]

-EDRDY [8]

-BR0 [8]

220P/4/N/25V

-RS0 [8]

-RS1 [8]

-RS2 [8]

Closed to
Pin-H1

R1

VTT_OR

-HINIT [19]

C2
33P/4/N/50V

C1

-CPURST [8]

C4
22P/4/N/50V

49.9/6/1

BC11

0.01U/4/X/16VR2100/6/1

VTT_OL

VTT_OL

VTT_GMCH

VTT_OL

VTT_OL

RN122 62/8P4R

7 8
5 6
3 4
1 2

R1525 62/6

R6 62/6/X

R7 62/6

R8 62/6

C3

1U/6/Y/16V

TESTHI10
TESTHI9
TESTHI8

-IERR

-IERR

-BR0

-CPURST

GTLREF

HA[3..16][8]

C C

HA[17..31][8]

SP-CAP X 4PCS

VCORE

B B

+

100U/2V/SPCAP(10CL3-201000-11)/X

+

EC2

EC3

100U/2V/SPCAP(10CL3-201000-11)/X

+

EC4

100U/2V/SPCAP(10CL3-201000-11)/X

HA[3..16]

HA[17..31]

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

-HREQ0[8]

-HREQ1[8]

-HREQ2[8]

-HREQ3[8]

-HREQ4[8]

-HADSTB0[8]

-HPCREQ[8]
HA17

HA18
HA19
HA20
HA21
HA22
HA23
HA24
HA25
HA26
HA27
HA28
HA29
HA30
HA31

-HADSTB1[8]

-HREQ0

-HREQ1

-HREQ2

-HREQ3

-HREQ4

-HADSTB0

-HPCREQ

-HADSTB1

CR1

VCORE

BC21

10U/12/X/6.3V/X

A A

VCORE

BC30

10U/12/X/6.3V/X

BC31

10U/12/X/6.3V/X

5

VCORE

BC25

10U/12/X/6.3V/X

4

BC26

10U/12/X/6.3V/X

BC23

10U/12/X/6.3V/X

BC28

10U/12/X/6.3V/X

BC20

10U/12/X/6.3V/X

BC29

10U/12/X/6.3V/X

3

CPU RETAINTION/X

Title

Size Document Number Rev
Custom

2

Date: Sheet

GIGABYTE CORP.

P4_LGA775-A

8I925XC-G

1

442Thursday, May 05, 2005

1.1

of

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

-DBI0[8]
STBN0[8]
STBP0[8]

-DBI1[8]
STBN1[8]
STBP1[8]

-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

LGA775

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 CORP.

P4_LGA775-C

8I925XC-G

1

542Thursday, May 05, 2005

1.1

of

5

Note:

VCCA & VCOREPLL

BC24
22U/12/X/6.3V

BSEL166_2[37]

BSEL166_1[37]

define doesn't same as
old P4 design kit

+

EC5

100U/D/10V/57

As close as possible to
CPU socket

-PROCHOT

C1274
33P/4/N/50V

-STPCLK

C1273
33P/4/N/50V

R1577 0/6/X

FSBSEL1

FSBSEL0

VCCA

R17
0/SHT/X

VSSA

VCOREPLL

Q267

Q268

CPU_TEMP[25,37]
THERMDC[37]

1N/4/X/50V

VTT_GMCH

VTT_GMCH

BC34

R1540

1K/6

132

R1541

1K/6

2N7002/SOT23

132

VTT_GMCH

L1

10UH/8/S

D D

L2

10UH/8/S

C C

B B

A A

VCC_SENSE[25,36]

VSS_SENSE[25,36]

C6
1U/6/Y/16V

C7
1U/6/Y/16V

5

BC33

10U/12/X/6.3V/X

ATXGPO4[36]

Trace width doesn't
less than 12 Mil

R1558 8.2K/6

2N7002/SOT23

R1559 8.2K/6

4

C9

1N/4/X/50V

4

VID[0..5][36]

CPUCLK[22]

-CPUCLK[22]

VCC_SENSE[25,36]

VSS_SENSE[25,36]

R1565 0/6/X
R1566 60.4/6/1/X

BSEL1

BSEL0

-SMI[19]

-A20M[19]

-FERR[19]
INTR[19]

NMI[19]

-IGNNE[19]

-STPCLK[19]

VID[0..5]

CPUCLK

-CPUCLK

-SKTOCC[36]

TP_CPU10

NEED TEST POINT

-SYS_RST[19,21,22,28,36]

TP43
TP44

GTL_DET[7,8]

-SMI

-A20M

-FERR
INTR
NMI

-IGNNE

-STPCLK
VCCA

VSSA
VCOREPLL
VID0

VID1
VID2
VID3
VID4
VID5

TCK
TDI
TDO
TMS

-TRST

-BPM0

-BPM1

-BPM2

-BPM3

-BPM4

-BPM5

-SYS_RST
H_ITPCLK

-H_ITPCLK
FSBSEL0

FSBSEL1
FSBSEL2

FSBSEL0[22]
FSBSEL1[22]
FSBSEL2[22]

3

VCC3

R1520

249/6/1

3

D

GS

2

1

U1C

P2

SMI#

K3

A20M#

R3

FERR#/PBE#

K1

LINT0

L1

LINT1

N2

IGNNE#

M3

STPCLK#

A23

VCCA

B23

VSSA

D23

RSVD

C23

VCCIOPLL

AM2

VID0

AL5

VID1

AM3

VID2

AL6

VID3

AK4

VID4

AL4

VID5

AM5

RSVD

F28

BCLK0

G28

BCLK1

AE8

SKTOCC#

AL1

THERMDA

AK1

THERMDC

AN3

VCC_SENSE

AN4

VSS_SENSE

AN5

RSVD

AN6

RSVD

F29

VTT_PKGSENSE

W1

MSID0

F6

RSVD_F6

LGA775

U1D

AE1

TCK

AD1

TDI

AF1

TDO

AC1

TMS

AG1

TRST#

AJ2

BPM0#

AJ1

BPM1#

AD2

BPM2#

AG2

BPM3#

AF2

BPM4#

AG3

BPM5#

AC2

DBR#

AK3

ITPCLK0

AJ3

ITPCLK1

G29

BSEL0

H30

BSEL1

G30

BSEL2

LGA775

FSBSEL0 BSEL0
FSBSEL1 BSEL1
FSBSEL2 BSEL2

VCC3

Q258

2N7002/SOT23

SOT23

TESTHI0

R53 8.2K/6/X
R54 8.2K/6/X
R55 8.2K/6

3

TESTHI00
TESTHI01
TESTHI11
TESTHI12
TESTHI02
TESTHI03
TESTHI04
TESTHI05

TESTHII06

TESTHI07

RSVD
RSVD

RSVD

PWRGOOD

PROCHOT#

THERMTRIP#

COMP0
COMP1
COMP2
COMP3

RSVD
RSVD
RSVD
RSVD
RSVD
RSVD

BOOTSELECT

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

VTTPWRGD

VTT_OUT
VTT_OUT

VTT_SEL

SLP#

N/C
N/C
N/C
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

R1507 110/6/1

C45

0.1U/6/Y/25V/X

TESTHI0

F26

TESTHI1

W3

TESTHI11

P1

TESTHI12

W2
F25
G25
G27
G26
G24

TESTHI2_7

F24

-FORCEPR

AK6

RSVD_G6

G6

-CPUSLP

L2
AH2

CPUPWROK

N1

-PROCHOT

AL2

-THRMTRIP

M2

COMP0

A13

COMP1

T1

COMP2

G2

COMP3

R1
N5

AE6
C9
G10
D16
A20
E7

TP_CPU7

E23

TP_CPU8

E24
F23

TP_CPU9

H2
J2
J3

BOOTSEL

Y1

LL_ID0

V2
AA2

VTT_PWRGD

R52 1K/6/X

BSEL0 [11]
BSEL1 [11]
BSEL2 [11]

VTT_GMCH

R1508

61.9/6/1

-FORCEPR [30]

-CPUSLP [19]
CPUPWROK [19]

-PROCHOT [30]

-THRMTRIP [19]

GTLREF1

LL_ID0 [36]

VTT_PWRGD [34,36]

VTT_OR
VTT_OL
VCC3

2

2

TESTHI0

C1269

0.1U/6/Y/25V

1

Place outside of CPU socket

VTT_OL

0.1U/6/Y/25V

VTT_GMCH

C5

R10 100/6/1
R11 100/6/1

R1563 60.4/6/1/X
R1564 60.4/6/1/X

R14 60.4/6/1
R15 60.4/6/1

RN130 470/8P4R

7 8
5 6
3 4
1 2

R22 62/6

R24 62/6
R25 62/6

COMP2
COMP3

COMP2
COMP3

COMP0
COMP1

FSBSEL0
FSBSEL2
FSBSEL1

TESTHI2_7

-THRMTRIP

-FERR

Locate at ICH6 Side

VTT_OL

VTT_OL

VTT_OR

0.1U/6/Y/25V

0.1U/6/Y/25V

VTT_OR

Title

Size Document Number Rev
Custom

Date: Sheet

R26 62/6/X
R30 100/6

VTT_OR

RN123

C304

C305

Closed to Pin-H2

R1567

49.9/6/1/X

BC692

0.01U/4/X/16V/X

R1522 680/6

7 8
5 6
3 4
1 2

RN1 680/8P4R

R33 680/6
R34 680/6

R35 130/6/X
R37 62/6/X

R36 62/6/X
RN124 62/8P4R

RN125

R46 62/6
R48 62/6

R49 62/6

C10
33P/4/N/50V

GIGABYTE CORP.

RSVD_G6
CPUPWROK

C8
1N/4/X/50V

VTT_PWRGD

62/8P4R

TESTHI12
TESTHI11
TESTHI1

7 8
5 6
3 4
1 2

7 8
5 6
3 4
1 2
7 8
5 6
3 4
1 2

62/8P4R

-CPUSLP

R1568

C1281

100/6/1/X

1U/6/Y/10V/X

P4_LGA775-B

8I925XC-G

1

VID2
VID5
VID0
VID4
VID1
VID3

-PROCHOT

-FORCEPR

BOOTSEL

-BPM0

-BPM1

-BPM5

-BPM4

-BPM2

-BPM3
TDI
TMS

TDO

-TRST
TCK

GTLREF1

642Thursday, May 05, 2005

1.1

of

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

LGA775

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

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

J10

VCC

J11

VCC

J12

VCC

J13

VCC

J14

VCC

J15

VCC

J18

VCC

J19

VCC

J20

VCC

J21

VCC

J22

VCC

J23

VCC

J24

VCC

J25

VCC

J26

VCC

J27

VCC

J28

VCC

J29

VCC

J30

VCC

J8

VCC

J9

VCC

K23

VCC

K24

VCC

K25

VCC

K26

VCC

K27

VCC

K28

VCC

K29

VCC

K30

VCC

K8

VCC

L8

VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC

M8

VCC

LGA775

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

VSS

A15

VSS

A18

VSS

A2

VSS

A21

VSS

A24

VSS

A6

VSS

A9

VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS

AA3

VSS
VSS

AA6

VSS

AA7

VSS

AB1

VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS

AB7

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

LGA775

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

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
AM7

2

GTL_DET[6,8]

U1H

AN1

VSS

AN10

VSS

AN13

VSS

AN16

VSS

AN17

VSS

AN2

VSS

AN20

VSS

AN23

VSS

AN24

VSS

AN27

VSS

AN28

VSS

AN7

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

LGA775

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

1

H25
H26
H27
H28
H29
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

Title

Size Document Number Rev
Custom

5

4

3

2

Date: Sheet

GIGABYTE CORP.

P4_LGA775-D

8I925XC-G

of

1

742Thursday, May 05, 2005

1.1

5

4

3

2

1

VTT_GMCH

R112

100/6/1

BC43

0.01U/4/X/16V

R113
210/6/1

MCH_GTLREF

BC44

0.1U/6/Y/25V

C34
220P/6/N/50V

VTT_GMCH

R114
301/6/1

HSWNG

R115
100/6/1

C35

0.01U/6/X/50V

VTT_GMCH

R116

60.4/6/1

HSCOMP

C36

2.2P/4/X/16V/X

HRCOMP

R117
20/6/1

VCORE

R1509

+12V

R1510

8.2K/6

GTL_DET[6,7]

619/6/1

GS

D

2

3

1

Q253

2N7002/SOT23

SOT23

MCH_GTLREF

HA[3..31][4]

D D

C C

B B

HA[3..31]

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

-HREQ0[4]

-HREQ1[4]

-HREQ2[4]

-HREQ3[4]

-HREQ4[4]

-HADSTB0[4]

-HADSTB1[4]

-CPURST[4]

-DBSY[4]

-DEFER[4]

-EDRDY[4]

-HLOCK[4]

-HPCREQ[4]

-HTRDY[4]

-HREQ0

-HREQ1

-HREQ2

-HREQ3

-HREQ4

-HADSTB0

-HADSTB1

STBP0

STBP0[5]

STBN0

STBN0[5]

-DBI0

-DBI0[5]
STBP1

STBP1[5]

STBN1

STBN1[5]

-DBI1

-DBI1[5]
STBP2

STBP2[5]

STBN2

STBN2[5]

-DBI2

-DBI2[5]
STBP3

STBP3[5]

STBN3

STBN3[5]

-DBI3

-DBI3[5]

-HADS

-HADS[4]

-BNR

-BNR[4]

-BPRI

-BPRI[4]

-BR0

-BR0[4]

-CPURST

-DBSY

-DEFER

-DRDY

-DRDY[4]

-EDRDY

-HIT

-HIT[4]

-HITM

-HITM[4]

-HLOCK

-HPCREQ

-RS0

-RS0[4]

-RS1

-RS1[4]

-RS2

-RS2[4]

-HTRDY

H29

G30
G32

M30

M28
R29

N26
M26
N31

N29
R28

N33

U28

H31
G31

N27

H26

C29

M31
M35

R33
G24

M32

N35

N34

K29
J29

K30
L29

L31
L28
J28
K27
K33

L26

P26
P28

T27
T31

T26
T29

F33
E32

F31
J31

E33
E35
E34

F26
J26
J19
F19
K19
B29

B26

E30

L35
J35

P33
L34

L33
E31
K34
P34
J32

U9A

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*

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

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

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

CPU INTERFACE

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*

HXSWING

HXSCOMP

HXRCOMP

HVREF

HCLKINP
HCLKINN

ALDERWOOD 925X / VER B2

J33
H33
J34
G35
H35
G34
F34
G33
D34
C33
D33
B34
C34
B33
C32
B32
E28
C30
D29
H28
G29
J27
F28
F27
E27
E25
G25
J25
K25
L25
L23
K23
J22
J24
K22
J21
M21
H23
M19
K21
H20
H19
M18
K18
K17
G18
H18
F17
A25
C27
C31
B30
B31
A31
B27
A29
C28
A28
C25
C26
D27
A27
E24
B25

A23
D24
B23
A24

M23
M22

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

HSWNG
HSCOMP
HRCOMP
MCH_GTLREF

MCHCLK

-MCHCLK

HD[0..63]

MCHCLK [22]

-MCHCLK [22]

HD[0..63] [5]

A A

5

4

COUPON1
COUPON2

COUPON1 COUPON/X
COUPON2 COUPON/X

VCC3

21
21

Title

Size Document Number Rev
Custom

3

2

Date: Sheet

GIGABYTE CORP.

GMCH-HOST

8I925XC-G

1

842Thursday, May 05, 2005

1.1

of

5

4

3

2

1

MODT_A[0..3]

D D

C C

B B

A A

MODT_A[0..3] [14,16]

MAAA0
MAAA1
MAAA2
MAAA3
MAAA4
MAAA5
MAAA6
MAAA7
MAAA8
MAAA9
MAAA10
MAAA11
MAAA12
MAAA13

-SWEA

-SWEA[14,16]

SBAA0[14,16]
SBAA1[14,16]
SBAA2[14,16]

-CSA0[14,16]

-CSA1[14,16]

-CSA2[14,16]

-CSA3[14,16]

CKEA0[14,16]
CKEA1[14,16]
CKEA2[14,16]
CKEA3[14,16]

SC5

0.1U/6/Y/25V/X

-SCASA

-SRASA
SBAA0

SBAA1
SBAA2

-CSA0

-CSA1

-CSA2

-CSA3
CKEA0

MODT_A0
MODT_A1
MODT_A2
MODT_A3

DCLKA0

-DCLKA0
DCLKA1

-DCLKA1

-DCLKA2

DCLKA3

-DCLKA3
DCLKA4

-DCLKA4
DCLKA5

-DCLKA5

DQSA8

-DQSA8
SACB0
SACB1
SACB2
SACB3
SACB4
SACB5
SACB6
SACB7

TP2
TP4

DDRVREFA

-SCASA[14,16]

-SRASA[14,16]

DCLKA0[14]

-DCLKA0[14]
DCLKA1[14]

-DCLKA1[14]
DCLKA2[14]

-DCLKA2[14]

DCLKA3[14]

-DCLKA3[14]
DCLKA4[14]

-DCLKA4[14]
DCLKA5[14]

-DCLKA5[14]

CKEA1
CKEA2
CKEA3

DCLKA2

U9E

AN26

SAMA0

AP25

SAMA1

AN25

SAMA2

AR24

SAMA3

AP23

SAMA4

AN22

SAMA5

AR23

SAMA6

AN21

SAMA7

AN23

SAMA8

AP22

SAMA9

AP26

SAMA10

AP21

SAMA11

AN20

SAMA12

AN30

SAMA13

AN28

SAWE*

AP29

SACAS*

AP27

SARAS*

AN27

SABA0

AR27

SABA1

AR20

SABA2

AR29

SACS0*

AN31

SACS1*

AR28

SACS2*

AP31

SACS3*

AP19

SACKE0

AN19

SACKE1

AN18

SACKE2

AR19

SACKE3

AP30

SAODT0

AP32

SAODT1

AN29

SAODT2

AN32

SAODT3

AL29

SACK0

AM30

SACK0*

AN2

SACK1

AN3

SACK1*

AC34

SACK2

AC35

SACK2*

AL28

SACK3

AK28

SACK3*

AM3

SACK4

AM2

SACK4*

AC33

SACK5

AB34

SACK5*

V30

SADQS8

U30

SADQS8*

V32

SACB0

V31

SACB1

AA31

SACB2

AA30

SACB3

R30

SACB4

R31

SACB5

Y30

SACB6

AB29

SACB7

AB33

RSV

AH15

RSV/TP1

AE16

RSV/TP0

AJ12

SMXSLEWIN

AK12

SMXSLEWOUT

AE7

SMVREF0

ALDERWOOD 925X / VER B2

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

AG1
AG2
AF2
AE3
AF3
AH3
AJ2
AE2
AE1
AG3
AH2

AL3
AL2
AL1
AK2
AK3
AN4
AP4
AJ1
AJ3
AP2
AP3

AP7
AN7
AP6
AP5
AK7
AM9
AL7
AR5
AN5
AM7
AM8

AH16
AG17
AF17
AE17
AF16
AL17
AH17
AE15
AD17
AK16
AJ17

AK27
AJ28
AJ33
AK29
AK31
AH27
AD27
AL30
AL31
AG27
AF28

AG35
AG33
AG34
AH34
AH35
AF33
AE33
AK34
AJ34
AG32
AF34

AA34
AA35
AA33
AD31
AD35
Y33
W34
AE35
AE34
AA32
Y35

U34
U35
U33
V34
V33
R32
R34
W35
W33
T33
T35

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
MDA29
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

MODT_B[0..3]

AN15
AR15
AN14
AP14
AN13
AN11
AP13
AR11
AR12
AP11
AP15
AP10
AN10
AM34

AP17
AP18
AN17

AR16
AN16

AN9

AP33
AM33
AN33
AP34

AR9
AP9
AR8
AN8

AN34

AL34
AL35
AL33

AH23
AG23

AK9

AE26
AE25

AL23

AK22

AJ11

AL11
AD28
AD29

AK21

AJ21

AJ20

AJ18

AJ23

AJ24

AL20
AK18

AL21

AL22

AD32

AK15

AL15

AF9

AE10

AE8

AG8
AG4
AE5
AF5

AL9

U9F

SBMA0
SBMA1
SBMA2
SBMA3
SBMA4
SBMA5
SBMA6
SBMA7
SBMA8
SBMA9
SBMA10
SBMA11
SBMA12
SBMA13

SBWE*
SBCAS*
SBRAS*

SBBA0
SBBA1
SBBA2

SBCS0*
SBCS1*
SBCS2*
SBCS3*

SBCKE0
SBCKE1
SBCKE2
SBCKE3

SBODT0
SBODT1
SBODT2
SBODT3

SBCK0
SBCK0*
SBCK1
SBCK1*
SBCK2
SBCK2*

SBCK3
SBCK3*
SBCK4
SBCK4*
SBCK5
SBCK5*

SBDQS8
SBDQS8*
SBCB0
SBCB1
SBCB2
SBCB3
SBCB4
SBCB5
SBCB6
SBCB7

RSV

RSV/TP2
RSV/TP3

SMYSLEWIN
SMYSLEWOUT

SMVREF1

SMRCOMPP
SMRCOMPN
SMOCDCOMP1
SMOCDCOMP0

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

ALDERWOOD 925X / VER B2

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

-SWEB

-SWEB[15,16]

SBAB0[15,16]
SBAB1[15,16]
SBAB2[15,16]

-CSB0[15,16]

-CSB1[15,16]

-CSB2[15,16]

-CSB3[15,16]

CKEB0[15,16]
CKEB1[15,16]
CKEB2[15,16]
CKEB3[15,16]

DDRVREFB

SMRCOMPP

SMRCOMPN

R621 40.2/6/1/X
R622 40.2/6/1/X

-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

DQSB8

-DQSB8
SBCB0
SBCB1
SBCB2
SBCB3
SBCB4
SBCB5
SBCB6
SBCB7

TP1
TP3

-SCASB[15,16]

-SRASB[15,16]

DCLKB0[15]

-DCLKB0[15]
DCLKB1[15]

-DCLKB1[15]
DCLKB2[15]

-DCLKB2[15]

DCLKB3[15]

-DCLKB3[15]
DCLKB4[15]

-DCLKB4[15]
DCLKB5[15]

-DCLKB5[15]

NB_HEATSIN

2

8
7

HS1

1

P/N:12SP2-04F003-41

SC6

0.1U/6/Y/25V/X

1
2

AH8
AH9
AH10
AG11
AG10
AJ7
AJ6
AE11
AF11
AJ8
AH7

AM5
AL5
AK5
AK10
AL4
AL8
AF12
AH4
AJ5
AL6
AN6

AH13
AG14
AH12
AF13
AD14
AF14
AE14
AD12
AE13
AK13
AL14

AG20
AF20
AE20
AD18
AE19
AL18
AK19
AF15
AD15
AH19
AH21

AH25
AG26
AF25
AF24
AG24
AL26
AJ26
AF23
AD23
AL25
AJ25

AH28
AH30
AH31
AK32
AJ31
AG31
AF30
AJ29
AK33
AG30
AG28

AB31
AC30
AD24
AF27
AE27
AC26
AB26
AE31
AE29
AC28
AB27

W27
Y28
W31
AA28
W29
V28
V29
Y26
AA29
W26
U26

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

MODT_B[0..3] [15,16]

R120

0/SHT/X

DDR18V

DDR18V

DDR18V

SBCB[0..7][15]

-DQSB[0..8][15]

MAAB[0..13][15,16]

DMB[0..7][15]

MDB[0..63][15]

DQSB[0..8][15]

MAAA[0..13][14,16]

DMA[0..7][14]

MDA[0..63][14]

DQSA[0..8][14]

-DQSA[0..8][14]

SACB[0..7][14]

R118
1K/6/1

R119
1K/6/1

BC45

1U/6/Y/16V

R121
1K/6/1/X

R122
1K/6/1/X

BC47

1U/6/Y/16V

R123 80.6/6/1
BC49

0.1U/6/Y/25V

R124 80.6/6/1

DDRVREFA

BC46

0.1U/6/Y/25V

DDRVREFB

BC48

0.1U/6/Y/25V

SMRCOMPN

SMRCOMPP

SBCB[0..7]

-DQSB[0..8]

MAAB[0..13]

DMB[0..7]

MDB[0..63]

DQSB[0..8]

MAAA[0..13]

DMA[0..7]

MDA[0..63]

DQSA[0..8]

-DQSA[0..8]

SACB[0..7]

6

P/N:12SP2-100002-01/X

5

4

3
45

3

2

Title

Size Document Number Rev
Custom

Date: Sheet

GIGABYTE CORP.

GMCH-DDRII

8I925XC-G

of

1

942Thursday, May 05, 2005

1.1

5

D D

4

3

2

1

L23

L8

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

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

1

+

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

DMI_0RXP[18]
DMI_0RXN[18]
DMI_1RXP[18]
DMI_1RXN[18]
DMI_2RXP[18]
DMI_2RXN[18]
DMI_3RXP[18]
DMI_3RXN[18]

B B

SRCCLK_MCH[22]

-SRCCLK_MCH[22]

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

DMI_0RXP
DMI_0RXN
DMI_1RXP
DMI_1RXN
DMI_2RXP
DMI_2RXN
DMI_3RXP
DMI_3RXN

U9B

E11

EXPARXP0

F11

EXPARXN0

J11

EXPARXP1

H11

EXPARXN1

F9

EXPARXP2

E9

EXPARXN2

F7

EXPARXP3

E7

EXPARXN3

B3

EXPARXP4

B4

EXPARXN4

D5

EXPARXP5

E5

EXPARXN5

G6

EXPARXP6

G5

EXPARXN6

H8

EXPARXP7

H7

EXPARXN7

J6

EXPARXP8

J5

EXPARXN8

K8

EXPARXP9

K7

EXPARXN9

L6

EXPARXP10

L5

EXPARXN10

P10

EXPARXP11

R10

EXPARXN11

M8

EXPARXP12

M7

EXPARXN12

N6

EXPARXP13

N5

EXPARXN13

P7

EXPARXP14

P8

EXPARXN14

R6

EXPARXP15

R5

EXPARXN15

U5

DMIRXP0

U6

DMIRXN0

T9

DMIRXP1

T8

DMIRXN1

V7

DMIRXP2

V8

DMIRXN2

V10

DMIRXP3

U10

DMIRXN3

A11

GCLKINP

B11

GCLKINN

K13

RSVRD

J13

RSVRD

ALDERWOOD 925X / VER B2

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

EXPACOMPO

EXPACOMPI

C10
C9
A9
A8
C8
C7
A7
A6
C6
C5
C2
D2
E3
F3
F1
G1
G3
H3
H1
J1
J3
K3
K1
L1
L3
M3
M1
N1
N3
P3
P1
R1

R3
T3
T1
U1
U3
V3
V5
W5

Y10
W10

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

GRCOMP

DMI_0TXP [18]
DMI_0TXN [18]
DMI_1TXP [18]
DMI_1TXN [18]
DMI_2TXP [18]
DMI_2TXN [18]
DMI_3TXP [18]
DMI_3TXN [18]

100nH/0302/1.4A/S

VCC1_5

100nH/1008/1A/S/X

EC19
220U/D/10V/6B

VCC1_5PCIEX

R125

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

BC50

10U/12/X/6.3V

BC51

10U/12/X/6.3V

VCC1_5PCIEX [13]

A A

Title

Size Document Number Rev
Custom

5

4

3

Date: Sheet

2

GIGABYTE CORP.

GMCH-PCI E & DMI

8I925XC-G

10 42Thursday, May 05, 2005

1.1

of

1

5

D D

C C

B B

BSEL0[6]
BSEL1[6]
BSEL2[6]

MTYPE
EXP_SLR

4

U9G

MTYPE
EXP_SLR

VCC1_5

AR35
AR34

AP35

AM24
AM21
AM18
AM15
AM12

AL27

AK24

AJ14

AH24
AG29

AG25
AF22

AF19
AE30
AE18
AD30
AD21
AC24
AC23
AB12
AA12

AC22
AC21
AC20
AC19
AC18
AC17
AC16
AC15
AC14
AC13
AC12

M16

M10

AR2
AR1

AH5

AG6

W12

H16

BSEL0

E15

BSEL1

D17

BSEL2
RSVRD

F15

RSVRD

C15

MYTYPE

A16

EXPSLP

B15

RSVRD

C14

RSVRD

K15

RSVRD

L10

VCC
VSS

NC
NC
NC
NC
NC

AP1

NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC

Y12

NC
NC

V12

NC

U12

NC

T12

NC

R24

NC

R12

NC

P30

NC

P24

NC

RSVRD
RSVRD
RSVRD
RSVRD
RSVRD
RSVRD
RSVRD
RSVRD
RSVRD
RSVRD
RSVRD

RSVRD
RSVRD

RSVRD
RSVRD
RSVRD

RSVRD
RSVRD
RSVRD

RSVRD
RSVRD

DREFCLKINP
DREFCLKINN

RSVRD

NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC

EXTTS*
RSVRD
RSVRD
RSTIN*

PWORK

ICH_SYNC*

NC

ALDERWOOD 925X / VER B2

E12
D12

F14
D14
H14

G14
E14
J14

L14
M15

M13
M12

A15

P23
P12
N24
N23
N22
N12
L19
L12
K12
J12
H17
H15
H12
G12
F24
F12
E16
C16
B35
B1
A34
A2

K16
G16
R35
AF7
AG7
M14
A35

3

R570 0/6

R133 8.2K/6

C1263

22P/4/N/50V

-PFMRST
PWROK1

VCC1_5

R1518 0/6S/X

C1264

100P/4/N/50V

DDR25V_DAC [13]

DDR25V_MCH [13,19,22]

-PFMRST [18,26,37]
PWROK1 [19,34,37]

-ICHSYNC

-ICHSYNC [19]

2

1

R1285

8.2K/6

1 2
3 4

Q219

2N7002/SOT23

SOT23

1

5 6
7 8

RN115

8.2K/8P4R

VCC

R1287

MTYPE

A A

EXP_SLR

R146 1K/6
R147 1K/6/X

FANPWM2[37]

8.2K/6

R1288 0/6S/X

3

D

GS

2

+12V

132

22U/D/25V/57/X

Q218

2N2907A/SOT23

1

+

CE2

BC657

R1286
0/6/X

NB_FAN

NB HEAT SINK FAN

GIGABYTE CORP.

0.1U/6/Y/25V

5

4

3

POH/1X2/W

2

Title

Size Document Number Rev
Custom

Date: Sheet

GMCH-INTERNAL VGA

8I925XC-G

1

11 42Thursday, May 05, 2005

of

1.1

5

4

3

2

1

U9H

A10

VSS

A18

VSS

D D

C C

B B

A A

5

A26

VSS

A3

VSS

A30

VSS

A33

VSS

A5

VSS

AA1

VSS

AA10

VSS

AA2

VSS

AA26

VSS

AA27

VSS

AA3

VSS

AA4

VSS

AA5

VSS

AA6

VSS

AA7

VSS

AA8

VSS

AA9

VSS

AB28

VSS

AB30

VSS

AB32

VSS

AB35

VSS

AC27

VSS

AC29

VSS

AC31

VSS

AC32

VSS

AD11

VSS

AD13

VSS

AD16

VSS

AD19

VSS

AD20

VSS

AD22

VSS

AD26

VSS

AD34

VSS

AE4

VSS

AE6

VSS

AE9

VSS

AE12

VSS

AE21

VSS

AE22

VSS

AE23

VSS

AE24

VSS

AE28

VSS

AE32

VSS

AF1

VSS

AF4

VSS

AF6

VSS

AF8

VSS

AF10

VSS

AF18

VSS

AF21

VSS

AF26

VSS

AF29

VSS

AF31

VSS

AF32

VSS

AF35

VSS

AG12

VSS

AG13

VSS

AG15

VSS

AG16

VSS

AG18

VSS

AG19

VSS

AG21

VSS

AG22

VSS

AG9

VSS

AG5

VSS

AH1

VSS

AH6

VSS

AH11

VSS

AH14

VSS

AH18

VSS

AH20

VSS

AH22

VSS

AH26

VSS

AH29

VSS

AH32

VSS

AH33

VSS

AJ32

VSS

AJ35

VSS

ALDERWOOD 925X / VER B2

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

AJ4
AJ9
AJ10
AJ13
AJ15
AJ16
AJ19
AJ22
AJ27
AJ30
AK1
AK4
AK6
AK8
AK11
AK14
AK17
AK20
AK23
AK25
AK26
AK30

AL10
AL13
AL16
AL19
AL24
AL32
AM28
AM31
AM4
AM6

AN1
AR13

AR17
AR21
AR25
AR3
AR30
AR6
B2
B5
B6
B7
B8
B9
B10
B12
B14
B16
B18
B24
B28
C1
C3
C4
C11
C13
C17
C18
C23
C35
D3
D4
D6
D7
D8
D9
D10
D11
D15
D16
D18
D23
D25
D26
D28
D30
D31
D32
E1
E2
E4
E6
E8
E10
E17
E18
E23
E26
E29

4

F2
F4
F5

F6
F10
F16
F18
F23
F25
F29
F30
F32
F35

G2
G4
G7
G8

G9
G10
G11
G13
G15
G17
G19
G20
G23
G26
G28

H2

H4

H5

H6

H9
H10
H13
H21
H24
H25
H27
H30
H32
H34

J2
J4
J7
J8

J9
J10
J15
J16
J17
J18
J20
J23
J30

K2
K20
K24
K26
K28
K31
K32
K35

K4

K5

K6

K9
K10
K11
K14

L2
L4
L7
L8

L9
L11
L13
L15
L16
L17
L18
L20
L21
L22
L24
L27
L30
L32

M2
M4
M5
M6

M9
M17
M20
M24
M25
M27

3

U9I

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

ALDERWOOD 925X / VER B2

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

M29
M34

N2
N4
N7
N8
N9
N10
N28
N30
N32
P2
P4
P5
P6
P9
P27
P29
P31
P32
P35

R2
R4
R7
R8
R9
R26
R27

T2
T4
T5
T6
T7
T10
T28
T30
T32
T34

U2
U4
U7
U8
U9
U17
U19
U27
U29
U31
U32

V1
V2
V4
V6
V9
V18
V26
V27
V35

F8
G27

W17
W19
W28
W30
W32

Y27
Y29
Y31
Y32
Y34

Title

Size Document Number Rev
Custom

2

Date: Sheet

GIGABYTE CORP.

GMCH-GND

8I925XC-G

1

12 42Thursday, May 05, 2005

1.1

of

5

U9C

VCC1_5

D D

C C

B B

VCC1_5

VCC1_5

A A

VCC1_5

AC11

VCC

AB11

VCC

Y20

VCC

Y19

VCC

Y17

VCC

Y16

VCC

W20

VCC

W16

VCC

U20

VCC

U16

VCC

T20

VCC

T19

VCC

T17

VCC

T16

VCC

AA13

VCC

AA14

VCC

AA16

VCC

AA18

VCC

AA20

VCC

AA21

VCC

AA22

VCC

AA23

VCC

AA24

VCC

AB13

VCC

AB14

VCC

AB15

VCC

AB16

VCC

AB17

VCC

AB18

VCC

AB19

VCC

AB20

VCC

AB21

VCC

AB22

VCC

AB23

VCC

AB24

VCC

N13

VCC

N14

VCC

N15

VCC

N16

VCC

N18

VCC

N20

VCC

N21

VCC

P13

VCC

P14

VCC

P15

VCC

P17

VCC

P19

VCC

P21

VCC

P22

VCC

R13

VCC

R14

VCC

R15

VCC

R16

VCC

R18

VCC

R20

VCC

R22

VCC

R23

VCC

T13

VCC

T14

VCC

T15

VCC

T21

VCC

T23

VCC

T24

VCC

U13

VCC

U14

VCC

U22

VCC

U24

VCC

V13

VCC

V14

VCC

V15

VCC

V21

VCC

V23

VCC

V24

VCC

W13

VCC

W14

VCC

W22

VCC

W24

VCC

Y13

VCC

Y14

VCC

Y15

VCC

Y21

VCC

Y23

VCC

Y24

VCC

ALDERWOOD 925X / VER B2

L10

1UH/8/S

5

R148 0.51/6/1

L11

10UH/8/S

BC681

4.7U/8/Y/10V

L13

10UH/8/S/X

BC684

4.7U/8/Y/10V/X

BC60

10U/12/X/6.3V

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

AC25
AB25
AA25
AA11
Y25
Y18
Y11
W25
W11
V25
V20
V16
V11
U25
U11
T25
T18
T11
R25
R11
P25
P11
N25
AD25
N11
M11

AA15
AA17
AA19
N17
N19
P16
P18
P20
R17
R19
R21
T22
U15
U21
U23
V22
W15
W21
W23
Y22

VCCA_GPLL

C56

0.1U/6/Y/25V

VCCA_HPLL

C58

0.1U/6/Y/25V

C63

0.1U/6/Y/25V/X

4

U9D

DDR25V_DAC

VCC1_5

VCC1_5

AD10

VCC

AD9

VCC

AD8

VCC

AD7

VCC

AD6

VCC

AD5

VCC

AD4

VCC

AD3

VCC

AD2

VCC

AD1

VCC

AC10

VCC

AC9

VCC

AC8

VCC

AC7

VCC

AC6

VCC

AC5

VCC

AC4

VCC

AC3

VCC

AC2

VCC

AC1

VCC

AB10

VCC

AB9

VCC

AB8

VCC

AB7

VCC

AB6

VCC

AB5

VCC

AB4

VCC

AB3

VCC

AB2

VCC

AB1

VCC

W18

VCC

V19

VCC

V17

VCC

U18

VCC

Y9

VCC3G

Y8

VCC3G

Y7

VCC3G

Y6

VCC3G

Y5

VCC3G

Y4

VCC3G

Y3

VCC3G

Y2

VCC3G

Y1

VCC3G

W9

VCC3G

W8

VCC3G

W7

VCC3G

W6

VCC3G

W4

VCC3G

W3

VCC3G

W2

VCC3G

W1

VCC3G

A17

VCCAHPLL

B17

VCCAMPLL

A12

VCCADPLLA

B13

VCCADPLLB

A14

VCCA3GPLL

A13

VCC2

E13

VCCA_2P5

D13

VCCA_2P5

F13

RSV

ALDERWOOD 925X / VER B2

L9

10UH/8/S/X

BC680

4.7U/8/Y/10V/X

L12

10UH/8/S

BC682

4.7U/8/Y/10V

FB4

30/8/S/4A

BC683

4.7U/8/Y/10V

VCC1_5

VCC1_5PCIEX[10]

VCCA_HPLL
VCCA_MPLL
VCCA_DPLLA
VCCA_DPLLB
VCCA_GPLL

DDR25V_MCH

DDR25V_MCH[11,19,22]

4

3

AR33

VCCSM

AR31

VCCSM

AR26

VCCSM

AR22

VCCSM

AR18

VCCSM

AR14

VCCSM

AR10

VCCSM

AR7

VCCSM

AP28

VCCSM

AP24

VCCSM

AP20

VCCSM

AP16

VCCSM

AP12

VCCSM

AP8

VCCSM

AN35

VCCSM

AM32

VCCSM

AM29

VCCSM

AM27

VCCSM

AM26

VCCSM

AM25

VCCSM

AM23

VCCSM

AM22

VCCSM

AM20

VCCSM

AM19

VCCSM

AM17

VCCSM

AM16

VCCSM

AM14

VCCSM

AM13

VCCSM

AM11

VCCSM

AM10

VCCSM

AL12

VCCSM

AK35

VCCSM

H22

VTT

G22

VTT

G21

VTT

F22

VTT

F21

VTT

F20

VTT

E22

VTT

E21

VTT

E20

VTT

E19

VTT

D22

VTT

D21

VTT

D20

VTT

D19

VTT

C22

VTT

C21

VTT

C20

VTT

C19

VTT

B22

VTT

B21

VTT

B20

VTT

B19

VTT

A22

VTT

A21

VTT

A20

VTT

A19

VTT

VCCA_DPLLB

C55

0.1U/6/Y/25V/X

VCCA_MPLL

C59

0.1U/6/Y/25V

DDR25V_DACVCCA_DPLLA

C61

0.1U/6/Y/25V

3

DDR18V

VTT_GMCH

C60

0.22U/6/Y/16V

C62

0.01U/6/X/50V

DDR18V DDR18V

DDR25V_MCH

VCC3

DDR25V_DAC [11]

2

R1529
100/6/1/X

R1530
100/6/1/X

VCC3

132

R547

3.3K/6/X

C47

0.1U/6/Y/25V

SC3

0.1U/6/Y/25V/X

BC54
10U/8/Y/10V

U17

1

IN

2

GND

3 4

EN BYP

MIC5205/2.5V

3VDUAL

SOT23

C303
1U/6/Y/10V/X

Q262

C52

R664

0/6

2

C46

0.1U/6/Y/25V

SC2

0.1U/6/Y/25V/X

BC53
10U/8/Y/10V

3
2
1

Q61

R546
10K/6/X

Q65

BAT54C/SOT23

C1270

0.1U/6/Y/25V/X

VCC1_5

SC1

0.1U/6/Y/25V/X

BC52
1U/6/Y/16V

4

RC1117ST-SOT223/X

4.7U/8/Y/10V

MMBT2222A/SOT23/X

3VDUAL

-SLP_S3[19,34,37,42]

VCC1_5 DDR25V_MCH

1

VTT_GMCHVTT_GMCH

C48

0.1U/6/Y/25V/X

SC4

0.1U/6/Y/25V/X

BC55
10U/8/Y/10V

DDR25V_MCH

DDR25V_MCH

5

OUT

R545
100/6/X

SOT23

132

Q62

MMBT2222A/SOT23/X

VCC1_5

Title

Size Document Number Rev
Custom

Date: Sheet

C49

0.1U/6/Y/25V

VCC1_5

+

BC56
10U/8/Y/10V

BC689

0.1U/6/Y/25V/X

DDR25V_MCH

C53

0.1U/6/Y/25V

C57

0.01U/6/X/50V

DDR25V_MCH

R544
10/8/X

Q60

MMBT2222A/SOT23/X

SOT23

132

3VDUAL

VCC1_5

R549

47K/6/X

Q64

MMBT2222A/SOT23/X

R550
10K/6/X

C302
1U/6/Y/10V/X

GIGABYTE CORP.

1

VCC

C50

0.1U/6/Y/25V

EC67
1000U/D/6.3V/8C

C54

10U/12/X/6.3V

SOT23

132

GMCH-PWR

8I925XC-G

1

BC57
10U/8/Y/10V

C51

0.1U/6/Y/25V/X

3VDUAL

R548
10K/6/X

Q63

MMBT2222A/SOT23/X

SOT23

132

of

13 42Thursday, May 05, 2005

1.1