Gigabyte GA-8I875 Schematics REV.2.0
5
4
3
2
1
GIGABYTE GA-8I875 Schematics
SHEET TITLE
D D
01
02
03
04
05
06
07
08
09
10
C C
11
12
13
14
15
16
17
18
19
B B
20
21
22
23
COVER SHEET
BOM & PCB MODIFY HISTORY
BLOCK DIAGRAM
P4_478A
P4_478B
P4_478C
CANTERWOOD HOST
CANTERWOOD DDR
CANTERWOOD AGP, HUB, CSA, VGA
CANTERWOOD PWR
DDR1,2 CHANNEL A
DDR4,5 CHANNEL B
DDR3,6 CHANNELA, B
DDR TERMINATION
AGP PRO
ICH5 PCI, USB, HUB, LAN
ICH5 IDE, GPIO, SATA, CTRL
ICH5 VCC, GND
DUAL BIOS
CY28405/ICS952603 CLOCK GEN
PCI1,2
PCI3,4
PCI5
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
CSA KENAI II+ KINNERITH-1
CSA KENAI II+ KINNERITH-2
CSA KENAI II+ KINNERITH-3
ITE 8712GX
ATX, OTHERS POWER
TI 1394
TEST POINT
TITLESHEET
Revision 2.0
CODEC24
AUDIO JACK25
COM_LPT26
27
28
29
A A
30
31
32
33
IDE
H/W,FAN
KB_PS2,GAME PORT
FPANEL
USB CONN
DDR AGP POWER
VCORE POWER
5
COMPONENT SIDE
(1 oz. Copper)
VCC SIDE
(1 oz. Copper)
GND SIDE
(1 oz. Copper)
SOLDER SIDE
(1 oz. Copper)
Title
Size Document Number Rev
Custom
4
3
2
Date: Sheet of
GIGABYTE CORP.
COVER SHEET
GA-8I875 2.0
1
1 39
5
4
3
2
1
Model Name: GA-8I875
Version : 2.0
Component history
D D
ITE8712 "GX" , COST DOWN , PCB 2.0
08/14
08/29 DUAL BIOS RESET ISSUE
C C
& PRESCOTT SOLUTION
BOM 1.9A
FIRST RELEASE
CHANGE FROM 8IK1100 REV 1.9 ,
GIGABIT LAN
BOM 2.0A
BOM 2.0B
B B
A A
Title
Size Document Number Rev
Custom
5
4
3
2
Date: Sheet of
GIGABYTE CORP.
BOM & PCB MODIFY HISTORY
GA-8I875 2.0
1
2 39
5
BLOCK DIAGRAM
4
3
2
1
INTEL Pentium4 (478)
D D
CLOCK GENERATOR
CKVDD = 3.3V
PAGE 19
VCORE = 1.75V / SLEEP : 1.3V
VCORE = 1.55V
VCC3
PAGE 4, 5, 6
VID0~5
PWM/OTHER POWER
VCORE = 1.75V (650-1100MHZ) / SLEEP : 1.3V
5VSB,-12V,+12V,VCC,VCC3,3VDUAL
VTT_DDR,2_5VSTR
PAGE 32,33,34
CHANNEL A
GDBI_LO, GDBI_HI
GAD0~31
ADSTB0,ADSTB0ADSTB1,ADSTB1-
AGP SLOT 8X
VDDQ = 1.5V (AGP POWER 4X)
VCC3 = 3.3V
+12V = 12V
3VDUAL = 3.3V
VCC = 5V
C C
PAGE 14
SBA0~7
SBSTB,SBSTB-
GCBE0~3ST0~2
AGP BUS
GMCH CANTERWOOD
VCORE = 1.75V / SLEEP : 1.3V
2_5VSTR = 2.5V(MEMORY)
VDDQ = 1.5V (AGP POWER 4X, HUBLINK)
HL0~10
CONTROL BUS
HUB LINK
PAGE 7 ,8 ,9,10
DCLKA0~5
-DCLKA0~5
MAAA0~12
MABA1~5
MDA0~63
-DQSA0~7
DMA0~7
DCLKB0~5
-DCLKB0~5
MAAB0~12
MABB1~5
MDB0~63
-DQSB0~7
DMB0~7
ICH5
USB PORTS 0~7
VCC = 5V
5VSB = 5V
5VUSB = 5V
B B
PAGE 27,35
VCC25 = 2.5V(I/O,MEMORY/I,VLINK/I)
3VDUAL = 3.3V(SUSPEND POWER)
VCC3 = 3.3V
RTCVDD = 3.3V
PCI BUS
PAGE 15,16,17
DDR SDRAM DIMM X 3
2_5VSTR = 2.5V(MEMORY,SUSPEND POWER)
VTT_DDR = 1.25V
PAGE 11,12,13
CHANNEL B
DDR SDRAM DIMM X 3
2_5VSTR = 2.5V(MEMORY,SUSPEND POWER)
VTT_DDR = 1.25V
KINNERETH-R & USB
CONN
PAGE 11,12,13
PAGE 35
IDE Primary and
Secondary
VCC = 5V
PAGE 24
SERIAL ATA
VCC = 5V
PAGE 16
PCI SLOT 1,2,3
+12 = 12V
-12 = -12V
VCC = 5V
VCC3 = 3V
3VDUAL = 3V
PAGE 20,21
FWH
VCC = 5V
VCC3 = 3V
PAGE 18
AC97 CODEC AD1981B
+12V = 12V
VCC = 5V 5VSB = 5V
AVDD = 5V
A A
AUDIO PORTS :
LIN_ OUT
LINE_IN
FRONT AUDIO
CD_IN
5
PAGE 29
MIC
PAGE 30,31
AC97 LINK
4
FRONT PANEL
PVCC = 5V
VCC = 5V
5VSB = 5V
+12 = 12V
P_5VSB = 5V
FANS / HWMO
VCC = 5V
5VSB = 5V
+12 = 12V
PAGE 28
PAGE 23
3
LPC BUS
LPC I/O SMC 47M233
VCC = 5VVCC3 = 3.3V
VBAT = 3V
I/O PORTS :
COMB
COMA
LPT
2
PS2
FDD
PAGE 22
PAGE 25,26
Title
Size Document Number Rev
Custom
Date: Sheet of
GIGABYTE CORP.
BOM & PCB MODIFY HISTORY
GA-8I875 2.0
1
3 39
5
4
3
2
1
VCORE
BC284
10U/12/X5/6.3V
10U/12/X5/6.3V
BC285
BC286
10U/12/X5/6.3V
VCORE VCORE
100U/2V/SP-CAP/X
BC288
BC287
100U/2V/SP-CAP/X
BC289
100U/2V/SP-CAP/X
SC290
100U/2V/SP-CAP/X
100U/2V/SP-CAP/X
SC291
BC292
100U/2V/SP-CAP/X
10U/12/X5/6.3V
BC282
BC283
10U/12/X5/6.3V
D D
VCORE
10U/12/X5/6.3V/X
-HADS [7]
-BNR [7]
-BR0 [7]
-BPRI [7]
-DBSY [7]
-DEFER [7]
-DRDY [7]
-HIT [7]
-HITM [7]
VCORE
-HLOCK [7]
-RS2 [7]
-RS1 [7]
-RS0 [7]
-HTRDY [7]
VCORE
R1253
8.2K/6/X
BOOTSEL [33]
C1
33P/4/N/50V
C2
33P/4/N/50V
-HINIT [17,19]
-CPURST [7]
AE10
AE8
VCORE8
VCORE9
GND21
GND22
AC13
AC11
AE6
AE20
VCORE10
VCORE11
VCORE12
GND23
GND24
GND25
AC9
AC7
AB15
AB13
VCORE13
VCORE14
GND26
GND27
AC5
AC2
VCORE
AB11
AB9
VCORE15
VCORE16
GND28
GND29
AC25
AC22
AB7
AB19
VCORE17
VCORE18
GND30
GND31
AC19
AD18
AC18
AC16
VCORE19
VCORE20
GND32
GND33
AD16
AA4
AC14
AC12
VCORE21
VCORE22
GND34
GND35
AA1
AA23
AC10
AC8
VCORE23
VCORE24
GND36
GND37
AA19
AB18
AD17
AD15
VCORE25
VCORE26
GND38
GND39
AB16
AB14
AD13
E14
VCORE27
VCORE28
GND40
GND41
AB12
AB10
E12
E10E8E20
VCORE29
VCORE30
GND42
GND43
AB8
AB6
VCORE31
VCORE32
GND44
GND45
AB3
AB24
GND46
AB21V4V1
GND47
GND48
GND49
V23W6W3
GND50
GND51
GND52
W24
GND53
W21Y5Y2
BOOTSEL
OPTIM/COMPAT
TESTHI8
TESTHI9
TESTHI10
DEFER
MCERR
RESET#
GND54
GND55
GND56
GND57
GND58
Y25
Y22
AA17
BINIT
BPRI
DBSY
DRDY
HITM
IERR
LOCK
TRDY
GND59
AA15
ADS
BNR
DP3
DP2
DP1
DP0
RSP
AP0
AP1
BR0
RS2
RS1
RS0
AA13
HIT
INIT
GND60
AD1
AE26
G1
AC1
V5
AA3
G2
L25
K26
K25
J26
U6
W4
Y3
H6
D2
H5
E2
H2
F3
E3
R1 62/6/X
AC3
W5
G4
V6
AB25
F4
G5
F1
AB2
J6
-HADS
-BNR
TESTHI8
TESTHI9
TESTHI10
-BR0
-BPRI
-DBSY
-DEFER
-DRDY
-HIT
-HITM
-HINITHA28
-HLOCK
-CPURST
-RS2
-RS1
-RS0
-HTRDY
BOOTSEL
BC293
10U/12/X5/6.3V
VCORE
10U/12/X5/6.3V/X
BC298
10U/12/X5/6.3V
C C
VCORE
10U/12/X5/6.3V/X
BC300
10U/12/X5/6.3V
B B
BC299
BC301
BC295
10U/12/X5/6.3V/X
BC302
10U/12/X5/6.3V/X
BC296
BC297
10U/12/X5/6.3V/X
HA[3..16][7]
HA[17..31][7]
HA[3..16]
-HADSTB0[7]
-HREQ4[7]
-HREQ3[7]
-HREQ2[7]
-HREQ1[7]
-HREQ0[7]
HA[17..31]
-HADSTB1[7]
HA16
HA15
HA14
HA13
HA12
HA11
HA10
HA9
HA8
HA7
HA6
HA5
HA4
HA3
-HADSTB0
-HREQ4
-HREQ3
-HREQ2
-HREQ1
-HREQ0
HA31
HA30
HA29
HA27
HA26
HA25
HA24
HA23
HA22
HA21
HA20
HA19
HA18
HA17
-HADSTB1
SOCKET_478A
N5
A16
N4
A15
N2
A14
M1
A13
N1
A12
M4
A11
M3
A10
L2
A9
M6
A8
L3
A7
K1
A6
L6
A5
K4
A4
K2
A3
L5
ADSTB0
H3
REQ4
J3
REQ3
J4
REQ2
K5
REQ1
J1
REQ0
AB1
A35
Y1
A34
W2
A33
V3
A32
U4
A31
T5
A30
W1
A29
R6
A28
V2
A27
T4
A26
U3
A25
P6
A24
U1
A23
T2
A22
R3
A21
P4
A20
P3
A19
R2
A18
T1
A17
R5
ADSTB1
SK478/GD/W
AE7
GND1
AE24
GND2
AE22
GND3
AE19
GND4
AD14
GND5
AD12
GND6
AD10
GND7
AD8
GND8
AD4
GND9
GND11
AD23
GND12
AD21
AE17
AD11
VCORE1
GND13
GND14
AE15
AD9
AD7
VCORE2
GND15
AE13
AE11
AD19
AE18
VCORE3
VCORE4
GND16
GND17
AE9
AE16
AE14
VCORE5
VCORE6
GND19
AB20
AC17
AE12
VCORE7
GND20
AC15
VCORE
VCORE
10U/12/X5/6.3V
BC315
BC314
A A
10U/12/X5/6.3V
RN1
12
34
56
78
62/8P4R
R2 200/6
R3 62/6
TESTHI9
TESTHI8
TESTHI10
-BR0
-CPURST
VCORE
10U/12/X5/6.3V/X
BC318
10U/12/X5/6.3V/X
BC321
BC323
10U/12/X5/6.3V/X
5
4
3
2
Title
Size Document Number Rev
Custom
Date: Sheet of
P4 478A
GA-8I875 2.0
1
4 39
5
VCORE
R4 200/6/1
BC39
0.01U/4/X/25V
D D
GTLREF
4
R5
169/6/1
BC40
0.1U/6/Y/25V
BC41
220P/4/N/50V
Closed to
Pin-AA21
3
GTLREF [7]
2
1
Place outside of CPU socket
COMP0
COMP1
R6 61.9/6/1
R7 61.9/6/1
SOCKET_478B
VCORE
F17
F15
F13
F11F9F19
AA18
AA16
AA14
AA12
AA10
AA8
AB17
B13
B11B9B7
B19
C18
C16
C14
C12
C10C8C20
D17
D15
D13
D11D9D7
D19
CPUCLK
CPUCLK[20]
-CPUCLK[20]
-A20M[17]
-FERR[17]
VID[0..5]
VCC_SENSE[33]
VSS_SENSE[33]
R1152 8.2K/6/X
R1153
8.2K/6/X
VCCA
VSSA
VCOREPLL
-IGNNE[17]
INTR[17]
NMI[17]
-SMI[17]
-STPCLK[17]
-THERM[17]
0.01U/6/X/25V
VCCA
VSSA
VCOREPLL
TMPIN3
BC509
PWMDIS1 [32,33]
LEGECY CPU
C C
VID[0..5][31,33,37]
VCCVID
C3
0.1U/6/Y/25V
10/10/10 mils
VCCVID
THERMN[37]
R13 2.2K/6
At least 10 mil
B B
TMPIN3[28,37]
R11 0/6S/X
C5
1U/6/Y/10V
BC510
0.01U/6/X/25V
Note:
VCCA & VCOREPLL
define doesn't same as
old P4 design kit
VCORE
L1
10UH/0806/120mA/S
L2
10UH/0806/120mA/S
A A
C6
1U/6/Y/10V
C8
1U/6/Y/10V
VCCA
5
C7
4.7U/8/Y/10V
C473
4.7U/8/Y/10V/X
As close as possible to
CPU socket
R443 0/6S/X
VCOREPLL
AF22
-CPUCLK
-A20M
-FERR -BPM5
-IGNNE
INTR
NMI
-SMI
-STPCLK
VID5
VID4
VID3
VID2
VID1
VID0
VCOREPLL
VCC_SENSE
VCCA
VSSA
VSS_SENSE
BCLK0
AF23
BCLK1
AC26
ITP_CLK0
AD26
ITP_CLK1
C6
A20M
B6
FERR
B2
IGNNE
D1
LINT0
E5
LINT1
B5
SMI
Y4
STPCLK
AD3
VID5
AE1
VID4
AE2
VID3
AE3
VID2
AE4
VID1
AE5
VID0
AF4
VCCVID
AF3
VCCVIDPRG
AD20
VCCA
A5
VCC_SENSE
AE23
VCCIOPLL
AD22
VSSA
A4
VSS_SENSE
AE21
RSVD1
A22
RSVD2
A7
RSVD3
B3
THERMDA
C4
THERMDC
A2
THERMTRIP
AD2
VIDPWRGD
AF25
RSVD5
AF24
RSVD7
SK478/GD/W
Trace width doesn't
less than 12 Mil
4
GND61
AA11
GND62
AA9
GND63
AA26
GND64
AA7N6N3
GND65
GND66
VCORE33
VCORE34
VCORE35
VCORE36
VCORE37
GND67
GND68
GND69
GND70
GND71
GND72
GND73
GND74
GND75
GND76
N24
N21P5P2
VCORE
R1179 62/6
VCORE
R24 130/6
Pull up must place end
of route
GND77
P25
P22
R26R4R1
R23T6T3
RN2
12
34
56
78
62/8P4R
VCORE38
VCORE39
GND78
GND79
T24
T21U5U2
TESTHI2_7
TESTHI12
TESTHI0_1
TESTHI11
-PROCHOT
VCORE40
VCORE41
VCORE42
GND80
GND81
GND82
VCORE43
VCORE44
GND83
GND84
U25
U22
VCORE45
VCORE46
GND85
GND86
V26
G21
VCORE47
VCORE48
GND87
GND88
H26H4H1
VCORE49
VCORE50
GND89
GND90
H23J5J2
VCORE
VCORE
3
VCORE51
VCORE52
VCORE53
VCORE54
VCORE55
VCORE56
VCORE57
VCORE58
VCORE59
GND91
GND92
GND93
GND94
GND95
GND96
GND97
GND98
GND99
J25
J22K6K3
K24
K21
L26L4L1
R18 62/6
R20 62/6
RN3 62/8P4R
R23 62/6
R25 62/6
VCORE60
GND100
12
34
56
78
VCORE61
VCORE62
VCORE63
GND101
GND102
GND103
L23M5M2
VCORE64
GND104
GND105
GND106
GND107
M25
M22
E11E9E26E7E4E1E23
-BPM5
-BPM4
-BPM1
-BPM3
-BPM0
-BPM2
-TRST
TDI
GND108
GND109
GND110
GND111
BSEL0
BSEL1
TESTHI11
COMP0
COMP1
BPM5
BPM4
BPM3
BPM2
BPM1
BPM0
TESTHI0
DBR#
TESTHI12
GTLREF3
GTLREF2
GTLREF1
GTLREF0
TESTHI5
TESTHI4
TESTHI3
TESTHI2
TESTHI7
TESTHI6
TESTHI1
PWRGOOD
PROCHOT
SLP
TCK
TDI
TDO
TMS
TRST
GND112
GND113
GND114
GND115
GND116
GND117
GND118
GND119
GND120
E19
F18
F16
F14
F12
F10
F8
Close to CPU
Close to CPU
Close to CPU
AD6
AD5
A6
L24
P1
AB4
AA5
Y6
AC4
AB5
AC6
AD24
AE25
AD25
AA6
F6
AA21
F20
AC23
AC24
AC20
AC21
AB22
AA20
AA2
AB23
C3
AB26
D4
C1
D5
F7
E6
FS_A
FS_B
TESTHI11
COMP0
COMP1
-BPM4
-BPM3
-BPM2
-BPM1
-BPM0
-RESET
TESTHI12
TP_AA6
TP_AA21
TESTHI2_7
TESTHI0_1
CPUPWROK
-PROCHOT
TCK
TDI
TDO
TMS
-TRST
2
-CPUSLP
GTLREF
FS_A [7,20]
FS_B [7,20]
TP_F6
-PROCHOT [7]
-CPUSLP [17]
C462
1N/4/X/50V
VCORE
R10
330/6
CPUPWROK [17]
C4
1N/4/X/50V
VCORE
TMS
R520 62/6
TCK
R15 62/6
TDO
R16 62/6
Title
Size Document Number Rev
Custom
Date: Sheet of
P4 478B
GA-8I875 2.0
1
5 39
5
4
3
2
1
K1
K1_ICT/X
D D
1
K4
K1_ICT/X
1
C C
B B
K2
K1_ICT/X
1
K5
K1_ICT/X
1
K3
K1_ICT/X
1
K6
K1_ICT/X
1
E18
GND135
GND136
GND137
D12
D10D8D6D3D24
GND138
GND139
E16
VCORE65
GND140
GND141
D21
VCORE66
GND142
SOCKET_478C
HD[0..15]
HD[0..15][7]
STBN0[7]
STBP0[7]
HD[16..31]
HD[16..31][7]
STBN1[7] -DBI3 [7]
STBP1[7]
HD15
D25
J21
D23
C26
H21
G22
B25
C24
C23
B24
D22
C21
A25
A23
B22
B21
E21
E22
F21
H25
K23
J24
L22
M21
H24
G26
L21
D26
F26
E25
F24
F23
G23
E24
H22
G25
K22
J23
SK478/GD/W
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
DBI#0
STBN0
STBP0
D31
D30
D29
D28
D27
D26
D25
D24
D23
D22
D21
D20
D19
D18
D17
D16
DBI#1
STBN1
STBP1
GND121
GND122
F5F2F25
GND123
GND124
F22G6G3
GND125
GND126
G24C5C2
GND127
GND128
GND129
GND130
C25
C22
GND131
GND132
C19
GND133
D18
D16
GND134
D14
HD14
HD13
HD12
HD11
HD10
HD9
HD8
HD7
HD6
HD5
HD4
HD3
HD2
HD1
HD0
-DBI0
-DBI0[7]
STBN0
STBP0
HD31
HD30
HD29
HD28
HD27
HD26
HD25
HD24
HD23
HD22
HD21
HD20
HD19
HD18
HD17
HD16
-DBI1
-DBI1[7]
STBN1
STBP1
AF17
AF15
VCORE67
VCORE68
GND143
GND144
D20
E17
AF13
AF11
VCORE69
VCORE70
GND145
GND146
E15
E13A3A24
AF9
AF7
VCORE71
VCORE72
GND147
GND148
VCORE
AF5
AF21
AF19
VCORE73
VCORE74
GND149
GND150
A21
A19
B18
A18
A16
VCORE75
VCORE76
VCORE77
GND151
GND152
GND153
B16
B14
A14
A12
VCORE78
VCORE79
GND154
GND155
B12
B10
A10A8A20
VCORE80
VCORE81
GND156
GND157
B26B8B4
B17
B15
VCORE82
VCORE83
VCORE84
GND158
GND159
GND160
B23
B20
AF2
VCORE85
GND161
GND162
C17
C15
GND163
C13
GND164
C11C9C7
GND165
GND166
AF18
GND167
GND168
AF16
AF14
GND169
GND170
AF12
AF10
GND171
AF8
GND173
GND174
AF6
AF1
GND175
GND176
AF20
A17
GND177
GND178
A15
A13
SKTOCC#
DBI#2
STBN2
STBP2
DBI#3
STBN3
STBP3
GND179
GND180
GND181
A11A9A26
D47
D46
D45
D44
D43
D42
D41
D40
D39
D38
D37
D36
D35
D34
D33
D32
D63
D62
D61
D60
D59
D58
D57
D56
D55
D54
D53
D52
D51
D50
D49
D48
GND182
AF26
T23
T22
T25
T26
R24
R25
P24
R21
N25
N26
M26
N23
M24
P21
N22
M23
P26
R22
P23
AA24
AA22
AA25
Y21
Y24
Y23
W25
Y26
W26
V24
V22
U21
V25
U23
U24
U26
V21
W22
W23
HD47
HD46
HD45
HD44
HD43
HD42
HD41
HD40
HD39
HD38
HD37
HD36
HD35
HD34
HD33
HD32
-DBI2
STBN2
STBP2
HD63
HD62
HD61
HD60
HD59
HD58
HD57
HD56
HD55
HD54
HD53
HD52
HD51
HD50
HD49
HD48
-DBI3
STBN3
STBP3
-DBI2 [7]
STBN2 [7]
STBP2 [7]
STBN3 [7]
STBP3 [7]
-SKTOCC [33]
HD[32..47] [7]
HD[48..63] [7]
CR1
CPU_RM/IBM_NEW
A A
Title
Size Document Number Rev
Custom
5
4
3
2
Date: Sheet of
P4 478C
GA-8I875 2.0
1
6 39
5
4
3
2
1
HA[3..31][4]
D D
HA[3..31]
N.B HEATSINK
NB_HEATSINK
NB_HEATSINK/12SF2-01B016-11 OR -12
-HREQ0[4]
-HREQ1[4]
PWROK
-HREQ2[4]
-HREQ3[4]
-HREQ4[4]
-HADSTB0[4]
-HADSTB1[4]
MCHCLK[20]
-MCHCLK[20]
-HTRDY[4]
-DEFER[4]
-HLOCK[4]
-DBSY[4]
C C
MCH_GTLREF
C10
0.1U/6/Y/25V
B B
GMCHVCCP
GMCHVCCP
R27
200/6/1
R29
169/6/1/X
Close to GMCH side
MCH_GTLREF
C9
220P/4/N/50V
R521 0/6/X
C55
0.1U/6/Y/25V
GTLREF [5]
STBP0[6]
STBP1[6]
STBP2[6]
STBP3[6]
STBN0[6]
STBN1[6]
STBN2[6]
STBN3[6]
-DBI0[6]
-DBI1[6]
-DBI2[6]
-DBI3[6]
-RS0[4]
-RS1[4]
-RS2[4]
-HADS[4]
-DRDY[4]
-HITM[4]
-BR0[4]
-BNR[4]
-BPRI[4]
-HIT[4]
C420
10P/4/Y/16V/X
-HREQ0
-HREQ1
-HREQ2
-HREQ3
-HREQ4
-HADSTB0
-HADSTB1
MCHCLK
-MCHCLK
HRCOMP
HSWNG
STBP0
STBP1
STBP2
STBP3
STBN0
STBN1
STBN2
STBN3
-DBI0
-DBI1
-DBI2
-DBI3
-RS0
-RS1
-RS2
-HADS
-HTRDY
-DRDY
-DEFER
-HITM
-HIT
-HLOCK
-BR0
-BNR
-BPRI
-DBSY
HA3
HA5
HA6
HA7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
HA16
HA17
HA18
HA19
HA20
HA22
HA23
HA24
HA25
HA26
HA27
HA28
HA29
HA30
HA31
E13
G12
E10
H12
F11
E9
F9
J9
G8
H10
J11
J7
F7
H8
A17
C17
B17
B11
C9
C13
A14
A13
A15
D8
C8
B15
D14
C12
C7
E11
F13
G13
E12
G14
G9
D16
E8
E7
A12
A6
E26
F21
D22
G19
A26
E22
B23
F19
B31
F25
C20
J17
D12
G10
G11
A9
J13
A11
D10
A8
B7
C11
H14
B13
C14
B9
U1A
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
HCLKP
HCLKN
HDRCOMP
HDSWING
HDSTBP0
HDSTBP1
HDSTBP2
HDSTBP3
HDSTBN0
HDSTBN1
HDSTBN2
HDSTBN3
DBI_0
DBI_1
DBI_2
DBI_3
RS0
RS1
RS2
ADS
HTRDY
DRDY
DEFER
HITM
HIT
HLOCK
BREQ0
BNR
BPRI
DBSY
CPU INTERFACE
CTWD MCH/A2
FSB
GTLREF
HDVREF
PROCHOT#
BSEL0
BSEL1
CPURST#
PWROK#
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
C29
D28
A28
E27
E28
C27
C28
B29
A29
B27
D26
C26
B25
A27
A25
C25
J21
H23
H20
H24
G26
H22
G23
G25
G21
E24
E25
G24
F23
G22
E23
E21
A23
C23
C24
A21
D24
C22
C21
A22
D20
B21
A19
B19
C18
C19
D18
A18
J19
G20
E20
E18
E19
G18
E17
F17
G16
E16
G15
J15
E14
H16
G17
E15
F15
A7
C10
C15
C16
H18
AE9
HD0
HD1HA4
HD2
HD3
HD4
HD5
HD6
HD7
HD8
HD9
HD10
HD11
HD12
HD13
HD14
HD15
HD16
HD17
HD18HA21
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
GTLREF
MCH_GTLREF
-PROCHOT
-CPURST
PWROK
HD[0..63]
GTLREF [5]
-PROCHOT [5] FS_A [5,20]
-CPURST [4]
HD[0..63] [6]
GTLREF
C466
0.1U/6/Y/25V
FS_A
R28
1K/6
R30
8.2K/6
PWROK [17,19,22,30,33,38]
R31
1K/6
R32
8.2K/6
FS_B
HRCOMP
R26
20/6/1
FS_B [5,20]
COUPON2
COUPON4
COUPON2 COUPON/X
COUPON4 COUPON/X
21
21
VCC3
R33
C11
301/6/1
R34
102/6/1
0.01U/4/X/25V
C12
0.01U/4/X/25V
NEAR MCH
5
HSWNG
C13
1U/6/Y/10V
C471
0.1U/6/Y/25V
HSWNG
Title
Size Document Number Rev
Custom
4
3
2
Date: Sheet of
SPRINGDALE HOST
GA-8I875 2.0
1
7 39
A A
5
4
3
2
1
MAAA[0..12]
D D
MDA[0..63][11,13,14]
DQSA[0..8][11,13,14]
SECCA[0..8]
C C
B B
A A
Closed to MCH
Closed to R47
MAAA[0..12]
MDA[0..63]
DQSA[0..8]
SECCA[0..8]
1U/6/Y/10V
DDR25V
5
0.1U/6/Y/25V
R47
42.2/6/1BC54
SMXRCOMP
R49
42.2/6/1
BC46
DDRVREFA
BC50
2.2U/8/Y/16V
AC29
AH32
AG31
AJ29
AK30
AN28
AK28
AM27
AL27
AL26
AD30
AN26
AL24
W31
AB30
U31
T33
V31
T31
P32
T30
R33
AM24
AL22
AL23
AN23
AE31
AE32
AN20
AM21
J32
J33
AG32
AG33
AM19
AL19
K30
K31
AG13
AN13
AH13
C32
AN15
AJ19
AL25
AL30
AA30
R31
J31
F30
AF33
2.2U/8/Y/16V
SMXRCOMP
U1B
SMAA_A0
SMAA_A1
SMAA_A2
SMAA_A3
SMAA_A4
SMAA_A5
SMAA_A6
SMAA_A7
SMAA_A8
SMAA_A9
SMAA_A10
SMAA_A11
SMAA_A12
SBA_A0
SBA_A1
SWE_A
SCAS_A
SRAS_A
SCS_A0
SCS_A1
SCS_A2
SCS_A3
SCKE_A0
SCKE_A1
SCKE_A2
SCKE_A3
SCMDCLK_A0
SCMDCLK_A0#
SCMDCLK_A1
SCMDCLK_A1#
SCMDCLK_A2
SCMDCLK_A2#
SCMDCLK_A3
SCMDCLK_A3#
SCMDCLK_A4
SCMDCLK_A4#
SCMDCLK_A5
SCMDCLK_A5#
SMXRCOMP
SMXRCOMPVOH
SMXRCOMPVOL
SMVREF_A
SDQS_A0
SDQS_A1
SDQS_A2
SDQS_A3
SDQS_A4
SDQS_A5
SDQS_A6
SDQS_A7
SDQS_A8
CTWD MCH/A2
DDRVREFB
100U/D/10V/5*7
DDR INTERFACE
MAAA0
MAAA1
MAAA2
MAAA3
MAAA4
MAAA5
MAAA6
MAAA7
MAAA8
MAAA9
MAAA10
MAAA11
MAAA12
SBAA0
SBAA0[11,13,14]
SBAA1
SBAA1[11,13,14]
-SWEA
-SWEA[11,13,14]
-SCASA
-SCASA[11,13,14]
-SRASA
-SRASA[11,13,14]
-CSA0
-CSA0[11,14]
-CSA1
-CSA1[11,14]
-CSA2
-CSA2[11,13,14]
-CSA3
-CSA3[11,13,14]
CKEA0
CKEA0[11,14]
CKEA1
CKEA1[11,14]
CKEA2
CKEA2[11,13,14]
CKEA3
CKEA3[11,13,14]
DCLKA0[11]
-DCLKA0[11]
DCLKA1[11]
-DCLKA1[11]
DCLKA2[11]
-DCLKA2[11]
DCLKA3[11,13]
-DCLKA3[11,13]
DCLKA4[11,13]
-DCLKA4[11,13]
DCLKA5[11,13]
-DCLKA5[11,13]
BC55
33P/6/X/50V/X
DCLKA0
-DCLKA0
DCLKA1
-DCLKA1
DCLKA2
-DCLKA2
DCLKA3
-DCLKA3
DCLKA4
-DCLKA4
DCLKA5
-DCLKA5
SMXRCOMP
SMXRCOMPVOH
SMXRCOMPVOL
DDRVREFA
DQSA0
DQSA1
DQSA2
DQSA3
DQSA4
DQSA5
DQSA6
DQSA7
DQSA8
DDR25V DDR25V
R42
150/6
DDRVREFB
R45
150/6
U1C
MAAB[0..12]
MDB[0..63]
DQSB[0..8]
SECCB[0..8]
Closed to MCH
BC47
0.1U/6/Y/25V
BC279
0.1U/6/Y/25V
SMYRCOMP
-DCLKB0[12]
-DCLKB1[12]
-DCLKB2[12]
-DCLKB3[12,13]
-DCLKB4[12,13]
-DCLKB5[12,13]
3
BC56
33P/6/X/50V/X
MAAB[0..12][12,13,14]
MDB[0..63][12,13,14]
DQSB[0..8][12,13,14]
SECCB[0..8][12,13,14]
SDQ_A0
SDQ_A1
SDQ_A2
SDQ_A3
SDQ_A4
SDQ_A5
SDQ_A6
SDQ_A7
SDQ_A8
SDQ_A9
SDQ_A10
SDQ_A11
SDQ_A12
SDQ_A13
SDQ_A14
SDQ_A15
SDQ_A16
SDQ_A17
SDQ_A18
SDQ_A19
SDQ_A20
SDQ_A21
SDQ_A22
SDQ_A23
SDQ_A24
SDQ_A25
SDQ_A26
SDQ_A27
SDQ_A28
DDR Channel A
SDQ_A29
SDQ_A30
SDQ_A31
SDQ_A32
SDQ_A33
SDQ_A34
SDQ_A35
SDQ_A36
SDQ_A37
SDQ_A38
SDQ_A39
SDQ_A40
SDQ_A41
SDQ_A42
SDQ_A43
SDQ_A44
SDQ_A45
SDQ_A46
SDQ_A47
SDQ_A48
SDQ_A49
SDQ_A50
SDQ_A51
SDQ_A52
SDQ_A53
SDQ_A54
SDQ_A55
SDQ_A56
SDQ_A57
SDQ_A58
SDQ_A59
SDQ_A60
SDQ_A61
SDQ_A62
SDQ_A63
SECC_A0
SECC_A1
SECC_A2
SECC_A3
SECC_A4
SECC_A5
SECC_A6
SECC_A7
DDR25V
4
AM15
AJ17
AM16
AN14
AK16
AL16
AN16
AL17
AN17
AL21
AM22
AL18
AN19
AK20
AN21
AK24
AN25
AK26
AM28
AN24
AM25
AN27
AL28
AN29
AL29
AJ31
AH30
AJ27
AJ28
AK31
AH31
AA28
AA33
Y33
W32
AA31
AA32
Y31
W33
V33
U32
P31
N31
V30
U33
M31
M33
L31
L32
H30
G33
L33
K33
H33
H31
F33
F31
D31
E31
G32
G31
E33
E32
AG30
AF31
AE33
AC33
AJ33
AH33
AC31
AB33
EC62
R48
42.2/6/1
SMYRCOMP
R50
42.2/6/1
MDA1
MDA2
MDA3
MDA4
MDA5
MDA6
MDA7
MDA8
MDA9
MDA10
MDA11
MDA12
MDA13
MDA14
MDA15
MDA16
MDA17
MDA18
MDA19
MDA20
MDA21
MDA22
MDA23
MDA24
MDA25
MDA26
MDA27
MDA28
MDA29
MDA30
MDA31
MDA32
MDA33
MDA34
MDA35
MDA36
MDA37
MDA38
MDA39
MDA40
MDA41
MDA42
MDA43
MDA44
MDA45
MDA46
MDA47
MDA48
MDA49
MDA50
MDA51
MDA52
MDA53
MDA54
MDA55
MDA56
MDA57
MDA58
MDA59
MDA60
MDA61
MDA62
MDA63
SECCA0
SECCA1
SECCA2
SECCA3
SECCA4
SECCA5
SECCA6
SECCA7
BC278
0.1U/6/Y/25V
MDA0
AL15
SBAB0[12,13,14]
SBAB1[12,13,14]
-SWEB[12,13,14]
-SCASB[12,13,14]
-SRASB[12,13,14]
-CSB0[12,14]
-CSB1[12,14]
-CSB2[12,13,14]
-CSB3[12,13,14]
CKEB0[12,14]
CKEB1[12,14]
CKEB2[12,13,14]
CKEB3[12,13,14]
DCLKB0[12]
DCLKB1[12]
DCLKB2[12]
DCLKB3[12,13]
DCLKB4[12,13]
DCLKB5[12,13]
MAAB0
MAAB1
MAAB2
MAAB3
MAAB4
MAAB5
MAAB6
MAAB7
MAAB8
MAAB9
MAAB10
MAAB11
MAAB12
SBAB0
SBAB1
-SWEB
-SCASB
-SRASB
-CSB0
-CSB1
-CSB2
-CSB3
CKEB0
CKEB1
CKEB2
CKEB3
DCLKB0
-DCLKB0
DCLKB1
-DCLKB1
DCLKB2
-DCLKB2
DCLKB3
-DCLKB3
DCLKB4
-DCLKB4
DCLKB5
-DCLKB5
SMYRCOMP
SMYRCOMPVOH
SMYRCOMPVOL
DDRVREFB
DQSB0
DQSB1
DQSB2
DQSB3
DQSB4
DQSB5
DQSB6
DQSB7
DQSB8
AB26
AH29
AG29
AH27
AF27
AF24
AG25
AG23
AE23
AJ22
AA25
AG22
AL20
AB31
AE21
AF21
AG20
AH19
AE29
AD29
AG18
AF18
AD27
AC27
AG17
AH17
AD31
AN12
AL14
AF16
AJ21
AG26
AC28
V26
U29
R25
U28
P26
T29
T27
R27
M30
M29
M26
M27
N32
N33
W25
R28
L29
K26
SMAA_B0
SMAA_B1
SMAA_B2
SMAA_B3
SMAA_B4
SMAA_B5
SMAA_B6
SMAA_B7
SMAA_B8
SMAA_B9
SMAA_B10
SMAA_B11
SMAA_B12
SBA_B0
SBA_B1
SWE_B
SCAS_B
SRAS_B
SCS_B0
SCS_B1
SCS_B2
SCS_B3
SCKE_B0
SCKE_B1
SCKE_B2
SCKE_B3
SCMDCLK_B0
SCMDCLK_B0#
SCMDCLK_B1
SCMDCLK_B1#
SCMDCLK_B2
SCMDCLK_B2#
SCMDCLK_B3
SCMDCLK_B3#
SCMDCLK_B4
SCMDCLK_B4#
SCMDCLK_B5
SCMDCLK_B5#
SMYRCOMP
SMYRCOMPVOH
SMYRCOMPVOL
SMVREF_B
SDQS_B0
SDQS_B1
SDQS_B2
SDQS_B3
SDQS_B4
SDQS_B5
SDQS_B6
SDQS_B7
SDQS_B8
CTWD MCH/A2
AG14
SDQ_B0
AL13
SDQ_B1
AK14
SDQ_B2
AJ15
SDQ_B3
AJ13
SDQ_B4
AM13
SDQ_B5
AJ14
SDQ_B6
AH15
SDQ_B7
AG15
SDQ_B8
AG16
SDQ_B9
AK18
SDQ_B10
AE19
SDQ_B11
AJ16
SDQ_B12
AE17
SDQ_B13
AG19
SDQ_B14
AJ18
SDQ_B15
AG21
SDQ_B16
AH21
SDQ_B17
AH23
SDQ_B18
AG24
SDQ_B19
AJ20
SDQ_B20
AF22
SDQ_B21
AJ23
SDQ_B22
AJ24
SDQ_B23
AJ25
SDQ_B24
AJ26
SDQ_B25
AG27
SDQ_B26
AD26
SDQ_B27
SDQ_B28
SDQ_B29
SDQ_B30
SDQ_B31
SDQ_B32
SDQ_B33
SDQ_B34
SDQ_B35
SDQ_B36
SDQ_B37
SDQ_B38
SDQ_B39
SDQ_B40
SDQ_B41
SDQ_B42
SDQ_B43
SDQ_B44
SDQ_B45
SDQ_B46
SDQ_B47
SDQ_B48
SDQ_B49
SDQ_B50
SDQ_B51
SDQ_B52
SDQ_B53
SDQ_B54
SDQ_B55
SDQ_B56
SDQ_B57
SDQ_B58
SDQ_B59
SDQ_B60
SDQ_B61
SDQ_B62
SDQ_B63
SECC_B0
SECC_B1
SECC_B2
SECC_B3
SECC_B4
SECC_B5
SECC_B6
SECC_B7
AF25
AE25
AE26
AG28
Y26
AA29
W27
V27
Y27
Y29
W28
W29
U27
T26
P27
N25
V29
U25
R29
P30
N29
N27
K29
L25
P29
N28
L28
L27
K27
H29
G29
H27
J29
J28
J27
G28
AE28
AF29
AB27
AA27
AE27
AC25
AD32
AB29
2
DDR Channel B
MDB0
MDB1
MDB2
MDB3
MDB4
MDB5
MDB6
MDB7
MDB8
MDB9
MDB10
MDB11
MDB12
MDB13
MDB14
MDB15
MDB16
MDB17
MDB18
MDB19
MDB20
MDB21
MDB22
MDB23
MDB24
MDB25
MDB26
MDB27
MDB28
MDB29
MDB30
MDB31
MDB32
MDB33
MDB34
MDB35
MDB36
MDB37
MDB38
MDB39
MDB40
MDB41
MDB42
MDB43
MDB44
MDB45
MDB46
MDB47
MDB48
MDB49
MDB50
MDB51
MDB52
MDB53
MDB54
MDB55
MDB56
MDB57
MDB58
MDB59
MDB60
MDB61
MDB62
MDB63
SECCB0
SECCB1
SECCB2
SECCB3
SECCB4
SECCB5
SECCB6
SECCB7
BC51
1U/6/Y/10V
Closed to R?
Closed to R?
BC44
1U/6/Y/10V
Closed to R?
BC71
1U/6/Y/10V
DDR25V
R43
30.9K/6/1
SMYRCOMPVOL
R46
10K/6/1
Title
Size Document Number Rev
Date: Sheet of
31.12K
Custom
BC42
1U/6/Y/10V
DDR25V
R38
30.9K/6/1
SMXRCOMPVOL
R37
10K/6/1
BC277
0.1U/6/Y/25V
BC53
0.1U/6/Y/25VBC52
DDR25V
R35
10K/6/1
SMXRCOMPVOH
R36
30.9K/6/1
31.12K
31.12K
BC45
0.1U/6/Y/25V
DDR25V
R39
10K/6/1
SMYRCOMPVOH
R40
30.9K/6/1
31.12K
BC653
SPRINGDALE DDR
BC650
0.01U/4/X/25V
SMXRCOMPVOH
BC43
0.1U/6/Y/25V
SMXRCOMPVOL
BC651
0.01U/4/X/25V
BC652
0.01U/4/X/25V
SMYRCOMPVOH
BC49
0.1U/6/Y/25V
SMYRCOMPVOL
0.01U/4/X/25V
GA-8I875 2.0
1
8 39
5
0.01U/4/X/25V
C27
C28
0.01U/4/X/25V
R69
52.3/6/1
CLRCOMP
GSWING
MCH_AGPREF
GAD[0..31]
SBA[0..7]
HL[0..10]
HL_VREF_MCH
HL_SWING_MCH
C34 0.1U/6/Y/25V
C35 0.01U/4/X/25V
CI[0..10][34]
CI[10:0][34]
GMCHVCCP
GAD[0..31][15]
SBA[0..7][15]
HL[0..10][16]
D D
C C
B B
VDDQ
CISTBF[34]
CISTBS[34]
Close to MCH
CI[0..10]
R1058
1K/6
MCH_AGPREF[15]
CLVREF_SPG[10]
CLSWING_SPG[10]
-GCBE0[15]
-GCBE1[15]
-GCBE2[15]
-GCBE3[15]
ST0[15]
ST1[15]
ST2[15]
GSWING[15]
GMCH3V66[20]
HLSTBF[16]
HLSTBS[16]
-PCIRST[16,19,22,34,37,39]
-ICHSYNC[17]
C384
0.1U/6/Y/25V
-PCIRST
C467
10P/4/Y/16V/X
CLOSED TO MCH
A A
VDDQ VDDQ
R74
52.3/6/1
HLRCOMP_MCH
5
R75
43.2/6/1
GRCOMP
4
-GCBE0
-GCBE1
-GCBE2
-GCBE3
ST0
ST1
ST2
MCH_AGPREF
GSWING
GRCOMP
GMCH3V66
HL0
HL1
HL2
HL3
HL4
HL5
HL6
HL7
HL8
HL9
HL10
HLSTBF
HLSTBS
HL_VREF_MCH
HL_SWING_MCH
HLRCOMP_MCH
CI0
CI1
CI2
CI3
CI4
CI5
CI6
CI7
CI8
CI9
CI10
CLVREF_SPG
CLSWING_SPG
CLRCOMP
-PCIRST
-ICHSYNC
4
U1D
AG4
GCBE0
AC5
GCBE1
AA3
GCBE2
V3
GCBE3
U7
GST0
U8
GST1
W8
GST2
AD2
GVREF
AC1
GVSWING
AC3
GRCOMP
G7
GCLKIN
AL4
HI0
AK5
HI1
AM4
HI2
AJ6
HUB
HI3
AN6
HI4
AL8
HI5
AM8
HI6
AN7
HI7
AL7
HI8
AN4
HI9
AM6
HI10
AK6
HISTRF
AL5
HISTRS
AF1
HI_VREF
AD3
HI_SWING
AD1
HI_RCOMP
AG9
CI0
AK9
CI1
AL9
CI2
AH9
CI3
AF7
CI4
AF6
CI5
AG6
CI6
AH5
CI7
AH7
CI8
AE7
CI9
AH8
CI10
AK7
CISTRF
AJ8
CISTRS
AG1
CI_VREF
AE3
CI_SWING
AF2
CI_RCOMP
AF14
EXTTS
AE8
RSTIN
AC7
ICH_SYNC
AM31
RESERVED_1
AL32
RESERVED_2
AN9
RESERVED_3
AC9
RESERVED_4
AG8
RESERVED_5
A5
RESERVED_6
CTWD MCH/A2
HL_SWING_ICH[16]
10 mil trace with 7 mil
space
HL_VREF_ICH[16]
AGP
CSA
GPAR/ADD_DETECT
0.1U/6/Y/25V
HL_SWING_MCH
HL_VREF_MCH
3
ADSTB0
AF3
GADSTBF0
GADSTBS0
GADSTBF1
GADSTBS1
GAD0
GAD1
GAD2
GAD3
GAD4
GAD5
GAD6
GAD7
GAD8
GAD9
GAD10
GAD11
GAD12
GAD13
GAD14
GAD15
GAD16
GAD17
GAD18
GAD19
GAD20
GAD21
GAD22
GAD23
GAD24
GAD25
GAD26
GAD27
GAD28
GAD29
GAD30
GAD31
GSBSTBF
GSBSTBS
GSBA0#
GSBA1#
GSBA2#
GSBA3#
GSBA4#
GSBA5#
GSBA6#
GSBA7#
GFRAME
GDEVSEL
GIRDY
VGA
GTRDY
GSTOP
GREQ
GGNT
GRBF
GWBF
DBI_HI
DBI_LO
VCORE_DCAP1 VCORE_DCAP2 VCORE_DCAP3 VCORE_DCAP4
C385
HL_SWING_ICH
0.8V
HL_VREF_ICH
VDDQ*0.233
-ADSTB0
AG3
ADSTB1
V1
-ADSTB1
V2
GAD0
AK1
GAD1
AK2
GAD2
AJ1
GAD3
AK3
GAD4
AJ3
GAD5
AJ4
GAD6
AH2
GAD7
AH1
GAD8
AF5
GAD9
AE4
GAD10
AE5
GAD11
AD5
GAD12
AD6
GAD13
AD8
GAD14
AC4
GAD15
AC8
GAD16
AA4
GAD17
Y2
GAD18
Y1
GAD19
W1
GAD20
Y3
GAD21
W4
GAD22
W3
GAD23
U1
GAD24
U3
GAD25
U4
GAD26
R1
GAD27
T2
GAD28
T3
GAD29
R3
GAD30
P1
GAD31
R4
SBSTB
Y6
-SBSTB
W5
SBA0
V5
SBA1
V6
SBA2
Y7
SBA3
W7
SBA4
AA8
SBA5
Y5
SBA6
AA5
SBA7
AA7
-GFRAME
AB7
-GDEVSEL
AB2
-GIRDY
AB6
-GTRDY
AB1
-GSTOP
AB5
GPAR
AB3
-GREQ
T5
-GGNT
T6
-RBF
V7
-WBF
U5
N1
P2
C386
0.1U/6/Y/25V
HL_SWING_MCH
R71 0/6S/X
C36
0.1U/6/Y/25V
HL_VREF_MCH
R73 0/6S/X
C38
0.1U/6/Y/25V
-PIPE
GDBI_LO
VDDQ
3
ADSTB0 [15]
-ADSTB0 [15]
ADSTB1 [15]
-ADSTB1 [15]
SBSTB [15]
-SBSTB [15]
-GFRAME [15]
-GDEVSEL [15]
-GIRDY [15]
-GTRDY [15]
-GSTOP [15]
GPAR [15]
-GREQ [15]
-GGNT [15]
-RBF [15]
-WBF [15]
-PIPE [15]
GDBI_LO [15]
C387
0.47U/6/Y/25V
R70
226/6/1
R72
147/6/1
R76
113/6/1
0.22U/6/Y/25V
C389
0.47U/6/Y/25V
Place mid of bus trace
C388
DDR25V
VCORE_DCAP3
VCORE_DCAP2
VCORE_DCAP1
C390
0.1U/6/Y/25V
2
C391
Y20
Y18
Y16
Y14
W19
W17
W15
V20
V18
V16
V14
V11
U19
U17
U15
U11
T20
T18
T16
T14
T11
T10
R19
R17
R15
R11
R10
P20
P18
P16
P14
P11
P10
P9
N11
N10
N9
N8
N7
M11
M10
M9
M8
M7
M6
L11
L10
L9
L8
L7
L6
L5
K6
K5
AE1
AA1
T1
N4
N3
M4
M3
M2
L4
L3
L2
L1
K4
K3
K2
K1
H3
H2
H1
G3
G2
G1
F1
F2
E1
J6
J5
J4
J3
J2
J1
DDR25V
U1G
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_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCC_AGP
VCCA_AGP
VCCA_AGP
CTWD MCH/A2
DDR25V
AN30
VCC_DDR
AN22
VCC_DDR
AN18
VCC_DDR
AN11
VCC_DDR
AN10
VCC_DDR
AM12
VCC_DDR
AM11
VCC_DDR
AM10
VCC_DDR
AL12
VCC_DDR
AL11
VCC_DDR
AL10
VCC_DDR
AK12
VCC_DDR
AK11
VCC_DDR
AK10
VCC_DDR
AJ12
VCC_DDR
AJ11
VCC_DDR
AJ10
VCC_DDR
AH12
VCC_DDR
AH11
VCC_DDR
AH10
VCC_DDR
AG12
VCC_DDR
AG11
VCC_DDR
AG10
VCC_DDR
AF12
VCC_DDR
AF11
VCC_DDR
AF10
VCC_DDR
AE15
VCC_DDR
AE12
VCC_DDR
AE11
VCC_DDR
AE10
VCC_DDR
AD33
VCC_DDR
AD24
VCC_DDR
AD22
VCC_DDR
AD20
VCC_DDR
AD18
VCC_DDR
AD16
VCC_DDR
AD14
VCC_DDR
AD12
VCC_DDR
AD11
VCC_DDR
AD10
VCC_DDR
AC21
VCC_DDR
AC19
VCC_DDR
AC17
VCC_DDR
AC15
VCC_DDR
AC13
VCC_DDR
AC12
VCC_DDR
AC11
VCC_DDR
AC10
VCC_DDR
AB24
VCC_DDR
AA23
VCC_DDR
Y24
VCC_DDR
W23
VCC_DDR
V24
VCC_DDR
U23
VCC_DDR
T24
VCC_DDR
R23
VCC_DDR
P33
VCC_DDR
P24
VCC_DDR
N23
VCC_DDR
D33
VCC_DDR
AN8
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
VCCHI
C392
0.22U/6/Y/25V
Title
Size Document Number Rev
Date: Sheet of
Custom
VCORE_DCAP4
AN5
AA10
Y11
Y10
Y9
W11
W10
W9
V10
V9
U10
U9
T9
T8
T7
R9
R8
R7
R6
R5
P8
P7
P6
P5
N6
N5
M5
C393
1U/6/Y/10V
SPRINGDALE AGP,HUB,CSA,VGA
VDDQ
DDR25V_DCAP2 DDR25V_DCAP4 DDR25V_DCAP5 DDR25V_DCAP6
0.22U/6/Y/25V
2
1
DDR25V_DCAP6
DDR25V_DCAP4
DDR25V_DCAP2
DDR25V_DCAP5
VDDQ
C383
0.1U/6/Y/25V
C394
0.47U/6/Y/25V
GA-8I875 2.0
1
9 39
5
U1E
L22
VTT
L21
VTT
L20
VTT
L19
VTT
TP_C1
TP_C2
TP_C3
TP_C4
TP_C5
TP_C6
TP_C7
TP_C8
TP_C9
TP_C10
TP_C11
TP_C12
TP_C13
TP_C14
TP_C15
TP_C16
TP_C17
TP_C18
TP_C19
TP_C20
TP_C21
TP_C22
TP_C23
TP_C24
TP_C25
TP_C26
TP_C27
TP_C28
TP_C29
TP_C30
AE13
AM18
AH20
AH24
AB32
AK13
AH16
AH26
AF28
W30
AC26
AK32
AH25
AK23
AK21
AE30
AK29
AM30
AK22
AF19
AN31
AM32
AM2
AL33
L18
L17
L16
L15
L14
L13
K12
H6
H5
G6
G5
G4
F5
F4
E6
E5
E4
E3
D5
D4
D3
C6
C5
C4
C3
B5
B4
B3
A24
A20
A16
A10
D6
A4
T32
L30
E29
U30
R26
N26
K9
K8
K10
K11
AN3
AL1
C33
C1
B32
B2
A31
A3
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
VTT
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TESTLOW
TEST
TEST
TEST
TEST
TEST
TEST
TEST
TEST
TEST
TEST
TEST
TEST
TEST
TEST
NC_1
NC_2
NC_3
NC_4
NC_5
NC_6
NC_7
NC_8
NC_9
NC_10
NC_11
NC_12
CTWD MCH/A2
D D
GMCHVCCP
VTT_DCAP4
VTT_DCAP1
C C
B B
A A
5
VTT_DCAP2
VTT_DCAP3
POWER
VCC3_3
VCCA_FSB
VCCA_FSB
VCCA_DDR
VCCA_DDR
VCCA_DDR
VCCA_DDR
4
VTT_DCAP1 VTT_DCAP4VTT_DCAP2 VTT_DCAP3
C395
0.47U/6/Y/25V
VDDQ
DDR25V
DDR25V
DDR25V
DDR25V
BC72
4.7U/8/Y/10V
J25
VSS
J24
VSS
J23
VSS
J22
VSS
J20
VSS
J18
VSS
J16
VSS
J14
VSS
J12
VSS
J10
VSS
J8
VSS
H32
VSS
H28
VSS
H26
VSS
H25
VSS
H21
VSS
H19
VSS
H17
VSS
H15
VSS
H13
VSS
H11
VSS
H9
VSS
H7
VSS
H4
VSS
G30
VSS
G27
VSS
F32
VSS
F29
VSS
F28
VSS
F27
VSS
F26
VSS
F24
VSS
F22
VSS
F20
VSS
F18
VSS
F16
VSS
F14
VSS
F12
VSS
F10
VSS
F8
VSS
F6
VSS
F3
VSS
E30
VSS
E2
VSS
D32
VSS
D30
VSS
D29
VSS
D27
VSS
D25
VSS
D23
VSS
D21
VSS
D19
VSS
D17
VSS
D15
VSS
D13
VSS
D11
VSS
D9
VSS
D7
VSS
B6
VSS
D1
VSS
C31
VSS
C30
VSS
B30
VSS
B28
VSS
B26
VSS
B24
VSS
B22
VSS
B20
VSS
B18
VSS
B16
VSS
B14
VSS
B12
VSS
B10
VSS
B8
VSS
D2
C2
A30
AK33
AC23
AC22
AB23
4
VCC3
VCCA_FSB
VCCA_SM
VCC3
BC66
0.1U/6/Y/25V
C51 0.1U/6/Y/25V
C399 0.1U/6/Y/25V
VDDQ
VDDQ
0.47U/6/Y/25V
BC58
0.1U/6/Y/25V
BC68
0.1U/6/Y/25V
0.1U/6/Y/25V/B/X
SC74
0.1U/6/Y/25V/X
L5
0.82UH/8/150mA/S
L6
1UH/1210/500mA/S
EC120
100U/D/10V/5*7
C396
BC59
0.1U/6/Y/25V
BC64
0.1U/6/Y/25V
BC69
0.1U/6/Y/25V
SC14
C61
4.7U/8/Y/10V
3
0.47U/6/Y/25V
BC60
0.1U/6/Y/25V
BC65
0.1U/6/Y/25V
BC70
0.1U/6/Y/25V
SC15
0.1U/6/Y/25V/B/X
SC73
0.1U/6/Y/25V/X
GMCHVCCP
GMCHVCCP
C369
4.7U/8/Y/10V
3
C397
0.1U/6/Y/25V/B/X
0.1U/6/Y/25V/B/X
C52
0.1U/6/Y/25V
C58
0.1U/6/Y/25V
C62
0.1U/6/Y/25V
C64
0.1U/6/Y/25V
BC61
0.1U/6/Y/25V
BC67
0.1U/6/Y/25V
BC646
SC16
SC75
0.1U/6/Y/25V/X
C53
0.1U/6/Y/25V
C404
0.1U/6/Y/25V
VCCA_FSB
VCCA_SM
C398
0.22U/6/Y/25V
BC62
0.1U/6/Y/25V
SC9
0.1U/6/Y/25V/B/X
SC11
0.1U/6/Y/25V/B/X
SC17
0.1U/6/Y/25V/B/X
CLSWING_SPG[9]
VDDQ*0.533
10 mil trace with 7 mil
space
CLVREF_SPG[9]
VDDQ*0.233
SC641
0.1U/6/Y/25V/X
C54
0.1U/6/Y/25V
C60
0.1U/6/Y/25V
15
Mil
30mA
C416
4.7U/8/Y/10V/X
40
Mil
1000mA
SC12
0.1U/6/Y/25V/B/X
SC18
0.1U/6/Y/25V/B/X
CLSWING_SPG
C43
0.1U/6/Y/25V
CLVREF_SPG
C48
0.1U/6/Y/25V
0.1U/6/Y/25V
SC642
0.1U/6/Y/25V/X
C44
2
C403
0.1U/6/Y/25V
2
VDDQ
R77
226/6/1
R78
147/6/1
R79
113/6/1
Close to N/B
VDDQ
BC645
4.7U/8/Y/10V
1
U1F
AM29
VSS
AM26
VSS
AM23
VSS
AM20
VSS
AM17
VSS
AM14
VSS
AM9
VSS
AM7
VSS
AM5
VSS
AM3
VSS
AL31
VSS
AL6
VSS
AL3
VSS
AL2
VSS
AK27
VSS
AK25
VSS
AK19
VSS
AK17
VSS
AK15
VSS
AK8
VSS
AK4
VSS
AJ32
VSS
AJ30
VSS
AJ9
VSS
AJ7
VSS
AJ5
VSS
AJ2
VSS
AH28
VSS
AH22
VSS
AH18
VSS
AH14
VSS
AH6
VSS
AH4
VSS
AH3
VSS
AG7
VSS
AG5
VSS
AG2
VSS
AF32
VSS
AF30
VSS
AF26
VSS
AF23
VSS
AF20
VSS
AF17
VSS
AF15
VSS
AF13
VSS
AF9
VSS
AF8
VSS
AF4
VSS
AE24
VSS
AE22
VSS
AE20
VSS
AE18
VSS
AE16
VSS
AE14
VSS
AE6
VSS
AE2
VSS
AD28
VSS
AD25
VSS
AD23
VSS
AD21
VSS
AD19
VSS
AD17
VSS
AD15
VSS
AD13
VSS
AD9
VSS
AD7
VSS
AD4
VSS
AC32
VSS
AC30
VSS
AC24
VSS
AC20
VSS
AC18
VSS
AC16
VSS
AC14
VSS
AC6
VSS
AC2
VSS
AB28
VSS
AB25
VSS
AB11
VSS
AB10
VSS
AB9
VSS
AB8
VSS
AB4
VSS
AA26
VSS
AA24
VSS
AA11
VSS
AA9
VSS
AA6
VSS
AA2
VSS
CTWD MCH/A2
Title
Size Document Number Rev
Custom
Date: Sheet of
SPRINGDALE PWR
GA-8I875 2.0
1
GND
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
10 39
Y32
Y30
Y28
Y25
Y23
Y19
Y17
Y15
Y8
Y4
W26
W24
W20
W18
W16
W14
W6
W2
V32
V28
V25
V23
V19
V17
V15
V8
V4
U26
U24
U20
U18
U16
U14
U6
U2
T28
T25
T23
T19
T17
T15
T4
R32
R30
R24
R20
R18
R16
R14
R2
P28
P25
P23
P19
P17
P15
P4
P3
N30
N24
N2
M32
M28
M25
M24
M23
M1
L26
L24
L23
L12
K32
K28
K25
K24
K23
K22
K21
K20
K19
K18
K17
K16
K15
K14
K13
K7
J30
J26
8
7
6
5
4
3
2
1
130
125
122
141
118
115
103
113
157
158
163
107
119
129
149
159
169
177
140
154
111
137
138
181
182
183
184
101
102
173
167
48
43
41
37
32
29
27
59
52
71
97
63
65
21
16
17
76
75
5
14
25
36
56
67
78
86
47
91
92
1
82
9
10
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
BA0
BA1
BA2
CS0
CS1
NC/CS2
NC/CS3
DQM0
DQM1
DQM2
DQM3
DQM4
DQM5
DQM6
DQM7
DQM8
WE
CAS
RAS
CKE0
CKE1
CK0/DNU
CK0/DNU
CK1
CK1
CK2/DNU
CK2/DNU
DQS0
DQS1
DQS2
DQS3
DQS4
DQS5
DQS6
DQS7
DQS8
SDA
SCL
SA0
SA1
SA2
VREF
VDDID
VDDSPD
NC
NC
NC
NC
NC
NC/FETEN
7
SECCA[0..7]
15223054627796
VDDQ
VDDQ
VDDQ
DDR25V
104
112
128
136
143
156
164
172
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
3111826344250586674818993
180738467085108
VDD
VDD
VDD
VDD
VDDQ
VDDQ
GND
GND
GND
GND
GND
GND
GND
100
116
124
132
139
145
6
VDD
GND
VDD
GND
152
120
148
VDD
GND
160
176
168
DDR1
VDD
VDD
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
D30
D31
D32
D33
D34
D35
D36
D37
D38
D39
D40
D41
D42
D43
D44
D45
D46
D47
D48
D49
D50
D51
D52
D53
D54
D55
D56
D57
D58
D59
D60
D61
D62
D63
CB0
CB1
CB2
CB3
CB4
CB5
CB6
CB7
WP
GND
DDR/GF
For
Register
DDR
Support
DDR25V
15223054627796
MAAA0
48
VDDQ
MDA0
2
MDA1
4
MDA2
6
MDA3
8
MDA4
94
MDA5
95
MDA6
98
MDA7
99
MDA8
12
MDA9
13
MDA10
19
MDA11
20
MDA12
105
MDA13
106
MDA14
109
MDA15
110
MDA16
23
MDA17
24
MDA18
28
MDA19
31
MDA20
114
MDA21
117
MDA22
121
MDA23
123
MDA24
33
MDA25
35
MDA26
39
MDA27
40
MDA28
126
MDA29
127
MDA30
131
MDA31
133
MDA32
53
MDA33
55
MDA34
57
MDA35
60
MDA36
146
MDA37
147
MDA38
150
MDA39
151
MDA40
61
MDA41
64
MDA42
68
MDA43
69
MDA44
153
MDA45
155
MDA46
161
MDA47
162
MDA48
72
MDA49
73
MDA50
79
MDA51
80
MDA52
165
MDA53
166
MDA54
170
MDA55
171
MDA56
83
MDA57
84
MDA58
87
MDA59
88
MDA60
174
MDA61
175
MDA62
178
MDA63
179
SECCA0
44
SECCA1
45
SECCA2
49
SECCA3
51
SECCA4
134
SECCA5
135
SECCA6
142
SECCA7
144
90
MDA[0..63] [8,13,14]MAAA[0..12][8,13,14]
100P/4/Y/25V/X
C474
C203 0.1U/6/Y/25V
-RESET_DDR[12,13]
SMBDATA
SMBCLK
C475
100P/4/Y/25V/X
DCLKA4[8,13]
-DCLKA4[8,13]
DCLKA3[8,13]
-DCLKA3[8,13]
DCLKA5[8,13]
-DCLKA5[8,13]
DDR25V
R523
8.2K/6
C205
0.1U/6/Y/25V
5
-RESET_DDR [12,13]
4
-CSA2[8,13,14]
-CSA3[8,13,14]
CKEA2[8,13,14]
CKEA3[8,13,14]
DDR25V
DDR25V
VREF_DDRA
MAAA1
MAAA2
MAAA3
MAAA4
MAAA5
MAAA6
MAAA7
MAAA8
MAAA9
MAAA10
MAAA11
MAAA12
SBAA0
SBAA1
-CSA2
-CSA3
-SWEA
-SRASA
CKEA2
CKEA3
DCLKA4
-DCLKA4
DCLKA3
-DCLKA3
DCLKA5
-DCLKA5
DQSA0
DQSA1
DQSA2
DQSA3
DQSA4
DQSA5
DQSA6
DQSA7
DQSA8
SMBDATA
SMBCLK
DDR25V
CLOSE TO DDR SOCKET
A0
43
A1
41
A2
130
A3
37
A4
32
A5
125
A6
29
A7
122
A8
27
A9
141
A10
118
A11
115
A12
103
A13
59
BA0
52
BA1
113
BA2
157
CS0
158
CS1
71
NC/CS2
163
NC/CS3
97
DQM0
107
DQM1
119
DQM2
129
DQM3
149
DQM4
159
DQM5
169
DQM6
177
DQM7
140
DQM8
63
WE
65
CAS
154
RAS
21
CKE0
111
CKE1
16
CK0/DNU
17
CK0/DNU
137
CK1
138
CK1
76
CK2/DNU
75
CK2/DNU
5
DQS0
14
DQS1
25
DQS2
36
DQS3
56
DQS4
67
DQS5
78
DQS6
86
DQS7
47
DQS8
91
SDA
92
SCL
181
SA0
182
SA1
183
SA2
1
VREF
82
VDDID
184
VDDSPD
9
NC
10
NC
101
NC
102
NC
173
NC
167
NC/FETEN
EC85
1000U/D/6.3V/8*11.5
3
104
112
128
136
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
GND
GND
GND
GND
GND
GND
GND
GND
3111826344250586674818993
143
156
164
172
VDDQ
GND
VDDQ
GND
VDDQ
VDDQ
GND
GND
180738467085108
VDDQ
GND
GND
100
120
148
168
DDR2
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
D30
D31
D32
D33
D34
D35
D36
D37
D38
D39
D40
D41
D42
D43
D44
D45
D46
D47
D48
D49
D50
D51
D52
D53
D54
D55
D56
D57
D58
D59
D60
D61
D62
D63
CB0
CB1
CB2
CB3
CB4
CB5
CB6
CB7
GND
GND
GND
116
124
132
WP
GND
GND
GND
GND
GND
DDR/PURPLE
139
145
152
160
176
MDA0
2
MDA1
4
MDA2
6
MDA3
8
MDA4
94
MDA5
95
MDA6
98
MDA7
99
MDA8
12
MDA9
13
MDA10
19
MDA11
20
MDA12
105
MDA13
106
MDA14
109
MDA15
110
MDA16
23
MDA17
24
MDA18
28
MDA19
31
MDA20
114
MDA21
117
MDA22
121
MDA23
123
MDA24
33
MDA25
35
MDA26
39
MDA27
40
MDA28
126
MDA29
127
MDA30
131
MDA31
133
MDA32
53
MDA33
55
MDA34
57
MDA35
60
MDA36
146
MDA37
147
MDA38
150
MDA39
151
MDA40
61
MDA41
64
MDA42
68
MDA43
69
MDA44
153
MDA45
155
MDA46
161
MDA47
162
MDA48
72
MDA49
73
MDA50
79
MDA51
80
MDA52
165
MDA53
166
MDA54
170
MDA55
171
MDA56
83
MDA57
84
MDA58
87
MDA59
88
MDA60
174
MDA61
175
MDA62
178
MDA63
179
SECCA0
44
SECCA1
45
SECCA2
49
SECCA3
51
SECCA4
134
SECCA5
135
SECCA6
142
SECCA7
144
90
GIGABYTE CORP.
Title
Size Document Number Rev
B
Date: Sheet of
2
DDR1,2 CHANNEL A
GA-8I875 2.0
11 39
1
SECCA[0..7][8,13,14]
D D
C C
-SCASA[8,13,14]
-SRASA[8,13,14]
DCLKA1[8]
-DCLKA1[8]
DCLKA0[8]
-DCLKA0[8]
DCLKA2[8]
-DCLKA2[8]
DQSA[0..8][8,13,14]
B B
SMBDATA[12,13,17,33,38]
SMBCLK[12,13,17,33,38]
C204
0.1U/6/Y/25V
MAAA0
MAAA1
MAAA2
MAAA3
MAAA4
MAAA5
MAAA6
MAAA7
MAAA8
MAAA9
MAAA10
MAAA11
MAAA12
SBAA0
SBAA0[8,13,14]
SBAA1
SBAA1[8,13,14]
-CSA0
-CSA0[8,14]
-CSA1
-CSA1[8,14]
-SWEA -SCASA
-SWEA[8,13,14]
-SCASA
-SRASA
CKEA0
CKEA0[8,14]
CKEA1
CKEA1[8,14]
DCLKA1
-DCLKA1
DCLKA0
-DCLKA0
DCLKA2
-DCLKA2
DQSA0
DQSA1
DQSA2
DQSA3
DQSA4
DQSA5
DQSA6
DQSA7
DQSA8
SMBDATA
SMBCLK
VREF_DDRA
DDR25V
-RESET_DDR[12,13]
DDR25V
A A
R522
75/6/1
VREF_DDRA -RESET_DDR
R524
75/6/1
8
VREF_DDRA [13]
8
7
6
5
4
3
2
1
MDB0
MDB1
MDB2
MDB3
MDB4
MDB5
MDB6
MDB7
MDB8
MDB9
MDB10
MDB11
MDB12
MDB13
MDB14
MDB15
MDB16
MDB17
MDB18
MDB19
MDB20
MDB21
MDB22
MDB23
MDB24
MDB25
MDB26
MDB27
MDB28
MDB29
MDB30
MDB31
MDB32
MDB33
MDB34
MDB35
MDB36
MDB37
MDB38
MDB39
MDB40
MDB41
MDB42
MDB43
MDB44
MDB45
MDB46
MDB47
MDB48
MDB49
MDB50
MDB51
MDB52
MDB53
MDB54
MDB55
MDB56
MDB57
MDB58
MDB59
MDB60
MDB61
MDB62
MDB63
SECCB0
SECCB1
SECCB2
SECCB3
SECCB4
SECCB5
SECCB6
SECCB7
SECCB[0..7]
MDB[0..63] [8,13,14]
C206 0.1U/6/Y/25V
-RESET_DDR[11,13]
DCLKB4[8,13]
-DCLKB4[8,13]
DCLKB3[8,13]
-DCLKB3[8,13]
DCLKB5[8,13]
-DCLKB5[8,13]
-CSB2[8,13,14]
-CSB3[8,13,14]
CKEB2[8,13,14]
CKEB3[8,13,14]
DDR25V
DDR25V
MAAB0
MAAB1
MAAB2
MAAB3
MAAB4
MAAB5
MAAB6
MAAB7
MAAB8
MAAB9
MAAB10
MAAB11
MAAB12
SBAB0
-CSB2
-CSB3
-SWEB
-SCASB
-SRASB
CKEB2
CKEB3
DCLKB4
-DCLKB4
DCLKB3
-DCLKB3
DCLKB5
-DCLKB5
DQSB0
DQSB1
DQSB2
DQSB3
DQSB4
DQSB5
DQSB6
DQSB7
DQSB8
SMBDATA
SMBCLK
VREF_DDRB
130
125
122
141
118
115
103
113
157
158
163
107
119
129
149
159
169
177
140
154
111
137
138
181
182
183
184
101
102
173
167
48
43
41
37
32
29
27
59
52
71
97
63
65
21
16
17
76
75
5
14
25
36
56
67
78
86
47
91
92
1
82
9
10
15223054627796
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
BA0
BA1
BA2
CS0
CS1
NC/CS2
NC/CS3
DQM0
DQM1
DQM2
DQM3
DQM4
DQM5
DQM6
DQM7
DQM8
WE
CAS
RAS
CKE0
CKE1
CK0/DNU
CK0/DNU
CK1
CK1
CK2/DNU
CK2/DNU
DQS0
DQS1
DQS2
DQS3
DQS4
DQS5
DQS6
DQS7
DQS8
SDA
SCL
SA0
SA1
SA2
VREF
VDDID
VDDSPD
NC
NC
NC
NC
NC
NC/FETEN
VDDQ
VDDQ
VDDQ
DDR25V
104
112
128
136
143
156
164
172
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
3111826344250586674818993
180738467085108
VDD
VDD
VDD
VDD
VDDQ
VDDQ
GND
GND
GND
GND
GND
GND
GND
100
116
124
132
139
145
VDD
GND
152
VDD
GND
120
148
VDD
GND
160
176
168
DDR5
VDD
VDD
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
D30
D31
D32
D33
D34
D35
D36
D37
D38
D39
D40
D41
D42
D43
D44
D45
D46
D47
D48
D49
D50
D51
D52
D53
D54
D55
D56
D57
D58
D59
D60
D61
D62
D63
CB0
CB1
CB2
CB3
CB4
CB5
CB6
CB7
WP
GND
DDR/PURPLE
MDB0
2
MDB1
4
MDB2
6
MDB3
8
MDB4
94
MDB5
95
MDB6
98
MDB7
99
MDB8
12
MDB9
13
MDB10
19
MDB11
20
MDB12
105
MDB13
106
MDB14
109
MDB15
110
MDB16
23
MDB17
24
MDB18
28
MDB19
31
MDB20
114
MDB21
117
MDB22
121
MDB23
123
MDB24
33
MDB25
35
MDB26
39
MDB27
40
MDB28
126
MDB29
127
MDB30
131
MDB31
133
MDB32
53
MDB33
55
MDB34
57
MDB35
60
MDB36
146
MDB37
147
MDB38
150
MDB39
151
MDB40
61
MDB41
64
MDB42
68
MDB43
69
MDB44
153
MDB45
155
MDB46
161
MDB47
162
MDB48
72
MDB49
73
MDB50
79
MDB51
80
MDB52
165
MDB53
166
MDB54
170
MDB55
171
MDB56
83
MDB57
84
MDB58
87
MDB59
88
MDB60
174
MDB61
175
MDB62
178
MDB63
179
SECCB0
44
SECCB1
45
SECCB2
49
SECCB3
51
SECCB4
134
SECCB5
135
SECCB6
142
SECCB7
144
90
SECCB[0..7][8,13,14]
DDR25V
D D
MAAB[0..12][8,13,14]
C C
-SCASB[8,13,14]
-SRASB[8,13,14]
DCLKB1[8]
-DCLKB1[8]
DCLKB0[8]
-DCLKB0[8]
DCLKB2[8]
-DCLKB2[8]
DQSB[0..8][8,13,14]
B B
SMBDATA[11,13,17,33,38]
SMBCLK[11,13,17,33,38]
DDR25V
C207
0.1U/6/Y/25V
DDR25V
-RESET_DDR[11,13]
MAAB0
48
VDDQ
130
125
122
141
118
115
103
113
157
158
163
107
119
129
149
159
169
177
140
154
111
137
138
181
182
183
184
101
102
173
167
43
41
37
32
29
27
59
52
71
97
63
65
21
16
17
76
75
5
14
25
36
56
67
78
86
47
91
92
1
82
9
10
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
BA0
BA1
BA2
CS0
CS1
NC/CS2
NC/CS3
DQM0
DQM1
DQM2
DQM3
DQM4
DQM5
DQM6
DQM7
DQM8
WE
CAS
RAS
CKE0
CKE1
CK0/DNU
CK0/DNU
CK1
CK1
CK2/DNU
CK2/DNU
DQS0
DQS1
DQS2
DQS3
DQS4
DQS5
DQS6
DQS7
DQS8
SDA
SCL
SA0
SA1
SA2
VREF
VDDID
VDDSPD
NC
NC
NC
NC
NC
NC/FETEN
MAAB1
MAAB2
MAAB3
MAAB4
MAAB5
MAAB6
MAAB7
MAAB8
MAAB9
MAAB10
MAAB11
MAAB12
SBAB0 SBAB1
SBAB0[8,13,14]
SBAB1
SBAB1[8,13,14]
-CSB0
-CSB0[8,14]
-CSB1
-CSB1[8,14]
-SWEB
-SWEB[8,13,14]
-SCASB
-SRASB
CKEB0
CKEB0[8,14]
CKEB1
CKEB1[8,14]
DCLKB1
-DCLKB1
DCLKB0
-DCLKB0
DCLKB2
-DCLKB2
DQSB0
DQSB1
DQSB2
DQSB3
DQSB4
DQSB5
DQSB6
DQSB7
DQSB8
SMBDATA
SMBCLK
VREF_DDRB
15223054627796
104
112
128
136
143
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ
GND
GND
GND
GND
GND
GND
GND
GND
3111826344250586674818993
156
VDDQ
GND
164
VDDQ
VDDQ
GND
GND
172
VDDQ
GND
180738467085108
VDD
VDD
VDD
VDD
VDD
VDDQ
GND
GND
GND
GND
GND
GND
GND
100
116
124
132
139
145
120
148
168
DDR4
VDD
VDD
VDD
VDD
2
D0
4
D1
6
D2
8
D3
94
D4
95
D5
98
D6
99
D7
12
D8
13
D9
19
D10
20
D11
105
D12
106
D13
109
D14
110
D15
23
D16
24
D17
28
D18
31
D19
114
D20
117
D21
121
D22
123
D23
33
D24
35
D25
39
D26
40
D27
126
D28
127
D29
131
D30
133
D31
53
D32
55
D33
57
D34
60
D35
146
D36
147
D37
150
D38
151
D39
61
D40
64
D41
68
D42
69
D43
153
D44
155
D45
161
D46
162
D47
72
D48
73
D49
79
D50
80
D51
165
D52
166
D53
170
D54
171
D55
83
D56
84
D57
87
D58
88
D59
174
D60
175
D61
178
D62
179
D63
44
CB0
45
CB1
49
CB2
51
CB3
134
CB4
135
CB5
142
CB6
144
CB7
90
WP
GND
GND
GND
DDR/GF
152
160
176
DDR25V
A A
R525
75/6/1
1 2
R526
75/6/1
VREF_DDRB
VREF_DDRB [13]
1 2
8
7
6
5
4
3
GIGABYTE CORP.
Title
Size Document Number Rev
B
Date: Sheet of
2
DDR3,4 CHANNEL B
GA-8I875 2.0
12 39
1
Loading...