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5 4 3 2 1
Model Name: GA-8I915G-MFD Revision 1.0
SHEET TITLE SHEET TITLE
D D
01 COVER SHEET 23 PCI EXPRESS*1 SLOT 1
02 BLOCK DIAGRAM 24 PCI SLOT 1, 2
03 BOM & PCB MODIFY HISTORY 25 HWMO&PROCHOT
04 P4_LGA775_A 26 IDE&FDD
05 P4_LGA775_B 27 KB_MS&GAME PORT
06 P4_LGA775_C 28 FRONT PANEL
C
07 P4_LGA775_D 29 FRONT USB CONNECTOR C
08 GMCH-GRANTSDALE_HOST 30 CPU_FAN & SYS_FAN
09 GMCH-GARNTSDALE_DDR 31 CODEC
10 GMCH-GRANTSDALE_PCI E, DMI 32 AUDIO JACK
11 GMCH-GRANTSDALE_INT VGA 33 F_AUDIO
12 GMCH-GRANTSDALE_GND 34 LAN
13 GMCH-GRANTSDALE_PWR 35 ALL POWER
14 DDRII CHANNEL A 36 ITE8712 & IR
B B
15 DDRII CHANNEL B 37 COM & LPT
16 DDR TERMINATION 38 1394
17 PCI EXPRESS*16 SLOT 39 VCORE POWER
18 ICH6 PCI, USB, DMI, LAN 40 ATX POWER CONN.
19 ICH6 IDE, GPIO, SATA, CTRL 41 GPIO & RESET TABLE
20 ICH6 VCC, GND 42
21 FWH 43
A A
22 CK410M CLOCK. 44
COMPONENT SIDE GIGABYTE
(1 oz. Copper)
VCC SIDE Title
(1 oz. Copper)
GND SIDE
Cover Sheet
(1 oz. Copper) Size Document Number Rev
SOLDER SIDE Custom GA-8I915G-MFD 1.0
(1 oz. Copper)
Date: , 10, 2004 Sheet 1 of 41
5 4 3 2 1
5 4 3 2 1
BLOCK DIAGRAM
INTEL Pentium4
LGA775
D
CLOCK GENERATOR D
VID0~4
PWM/OTHER POWER
VCORE = 1.75V / SLEEP : 1.3V
VCC3 PAGE 4, 5, 6 VCORE = 1.75V (650-1100MHZ) / SLEEP : 1.3V
CKVDD = 3.3V PAGE 19 5VSB,-12V,+12V,VCC,VCC3,3VDUAL
VTT_DDR,2_5VSTR PAGE 32,33,34
CHANNEL A
DDRII SDRAM DIMM X 2
GAD0~31 GMCH 2_5VSTR = 2.5V(MEMORY,SUSPEND POWER)
ADSTB0,ADSTB0- GRANTSDALE MAA0~14 VTT_DDR = 1.25V
PAGE 11
ADSTB1,ADSTB1- MAA_CPC1~5
SBA0~7 MAB_CPC1~5
PCI EXPRESS SBSTB,SBSTB- MDD0~63 CHANNEL B
VDDQ = 1.5V (AGP POWER 4X) GCBE0~3-
-DQSD0~7
DM0~7
DDRII SDRAM DIMM X 2
VCC3 = 3.3V
+12V = 12V ST0~2 AGP BUS
3VDUAL = 3.3V 2_5VSTR = 2.5V(MEMORY,SUSPEND POWER)
VCC = 5V PAGE 14 VCORE = 1.75V / SLEEP : 1.3V VTT_DDR = 1.25V
2_5VSTR = 2.5V(MEMORY) PAGE 12
VDDQ = 1.5V (AGP POWER 4X, HUBLINK) PAGE 7 ,8 ,9,10
C C
AGPUSB+ / -
HL0~10
CONTROL BUS HUB LINK
IDE Primary
ICH6
VCC = 5V PAGE 24
USB PORTS 0~7 SERIAL ATA
VCC25 = 2.5V(I/O,MEMORY/I,VLINK/I)
VCC = 5V 3VDUAL = 3.3V(SUSPEND POWER)
5VSB = 5V VCC3 = 3.3V
AMRUSB+ / - 5VUSB = 5V PAGE 27 RTCVDD = 3.3V VCC = 5V PAGE 16
PAGE 15,16,17
PCI BUS
B FWH/HWMO B
PCI SLOT 1,2,3
VCC = 5V
+12 = 12V VCC3 = 3V PAGE 18, 23
-12 = -12V
VCC = 5V
VCC3 = 3V
3VDUAL = 3V PAGE 20, 21
LPC BUS
KINNERTH-R/NORTHWAY
AC97/Azalia ALC880 LPC I/O ITE8712G
+12V = 12V AC97 LINK PAGE 35
VCC3 = 3.3V VCC = 5V
VCC = 5V 5VSB = 5V
AVDD = 5V PAGE 29 VBAT = 3V PAGE 22
A AUDIO PORTS : FRONT AUDIO FRONT PANEL /CPU FAN I/O PORTS : A
LIN_ OUT LINE_IN MIC
TELE CD_IN AUX_IN VCC = 5V
5VSB = 5V
COMA COMB LPT PS2 IR FDD
+12 = 12V
PAGE 30, 31 PVCC = 5V PAGE 28 PAGE 25, 26
Intel Confidential
Title
BLOCK DIAGRAM
Size Document Number Rev
Custom GA-8I915G-MFD 1.0
Date: , 10, 2004 Sheet 2 of 41
5 4 3 2 1
5 4 3 2 1
Model Name: GA-8I915G-MFD
Version: 1.0
243.84mm*243.84mm/C/60/+-15%/blue Circuit or PCB layout change for next version
D
Date Change Item Reason D
3/9 0.3
Component value change history add PCI test mode
3/17 1.0
1/6 0.1
add CR66 C-media requster
2/17 LG-0.2
3/25 LG-0.3
4/30 00-10A E-BOM
5/12 Turn to 10A P-BOM
5/17 10B
1. C256 change to 100/6 follow rule
5/19 10B ECN
1. Remove TD PCB, Add TA PCB Vender update
5/21 10B ECN
1. CPU_FAN SET 11NH5-020104-42 ONLY CPU_FAN modify
5/26 10C
1. Remove BC702 PCIE issue
C C
2. R1510 change to 0/6 PCIE issue
3. Add 12CF1-1CM001-12 PM request
4. U28 add IX3 second source add second source
5. remove DQ13,9,5,21 follow rule
6/10 10D
1. RS2 change to HR100K/6 For PROCHOT
2. R565 change to 845/6/1 For PROCHOT
3. R563 change to 2.49K/6/1 For PROCHOT
4. Add Q36 10IF4-450603-01 add second source
5. RN61,62,63,64,67 change to 2.2k/8p4r follow rule
6. R609 change to 39/4 follow rule
7. Add 12LB6-T00068-01, 12QM-LGA775-1001 PM request
8. 12ME-8I915GMFD-1001 change to -1002 PM request
B B
A A
GIGABYTE
Title
BOM & PCB MODIFY HISTORY
Size Document Number Rev
Custom GA-8I915G-MFD 1.0
Date: , 10, 2004 Sheet 3 of 41
5 4 3 2 1
5 4 3 2 1
VCORE
BC1 BC2 BC3 BC4 BC5 BC6 BC7 BC8
10U/12/X/6.3V 10U/12/X/6.3V 10U/12/X/6.3V 10U/12/X/6.3V 10U/12/X/6.3V 10U/12/X/6.3V 10U/12/X/6.3V 10U/12/X/6.3V
D VCORE D
+
+
+
+
BC9 BC10 BC12 BC13
100U/2V/SPCAP/X 100U/2V/SPCAP/X 100U/2V/SPCAP/X 100U/2V/SPCAP/X
U1A
HA[3..16]
(8) HA[3..16]
HA3 L5 D2 -HADS Closed to
A03# ADS# -HADS (8)
HA4 P6 C2 -BNR
HA5 M5
A04# BNR#
D4 -HIT
-BNR (8) Pin-H1
A05# HIT# -HIT (8)
HA6 L4 H4
HA7 A06# RSP# -BPRI R1 49.9/6/1 GTLREF
M4 A07# BPRI# G8 -BPRI (8) VTT_OR
HA8 R4 B2 -DBSY
A08# DBSY# -DBSY (8)
HA9 T5 C1 -DRDY
A09# DRDY# -DRDY (8)
HA10 U6 E4 -HITM BC11 R2 C3 C1
A10# HITM# -HITM (8)
HA11 -IERR 0.01U/4/X/16V 100/6/1 1U/6/Y/10V 220P/4/N/25V
HA12
T4
U5
A11# IERR# AB2
P3 -HINIT
*
A12# INIT# -HINIT (19)
HA13 U4 C3 -HLOCK
A13# LOCK# -HLOCK (8)
HA14 V5 E3 -HTRDY C2
A14# TRDY# -HTRDY (8)
HA15 V4 AD3 33P/4/N/50V
HA16 A15# BINIT# -DEFER
W5 A16# DEFER# G7 -DEFER (8)
C N4 F2 -EDRDY C
RSVD EDRDY# -EDRDY (8)
P5 RSVD MCERR# AB3
-HREQ0 K4
(8) -HREQ0 REQ0# VTT_OL
-HREQ1 J5 U2
(8) -HREQ1 REQ1# AP0#
-HREQ2 M6 U3
(8) -HREQ2 REQ2# AP1#
-HREQ3 K6 RN122
(8) -HREQ3 REQ3#
-HREQ4 J6 F3 -BR0 7 8
(8) -HREQ4 REQ4# BR0# -BR0 (8)
-HADSTB0 R6 G3 TESTHI8 5 6 TESTHI10
(8) -HADSTB0 ADSTB0# TESTHI08
-HPCREQ G5 G4 TESTHI9 3 4 TESTHI9
(8) -HPCREQ PCREQ# TESTHI09
HA[17..31] H5 TESTHI10 1 2 TESTHI8
(8) HA[17..31] TESTHI10
HA17 AB6
HA18 A17# 62/8P4R
W6 A18# DP0# J16
HA19 Y6 H15
HA20 A19# DP1#
Y4 A20# DP2# H16
HA21 AA4 J17
HA22 A21# DP3# R1532 62/6 -IERR
AD6 A22# VTT_OL
HA23 AA5 H1 GTLREF
HA24 A23# GTLREF
AB5 A24#
HA25 AC5 G23 -CPURST R6 62/6/X -IERR
A25# RESET# -CPURST (8) VTT_GMCH
HA26 AB4
HA27 A26# -RS0
AF5 A27# RS0# B3 -RS0 (8)
HA28 AF4 F5 -RS1 C4 R7 62/6 -BR0
A28# RS1# -RS1 (8) VTT_OL
HA29 AG6 A3 -RS2 22P/4/N/50V
A29# RS2# -RS2 (8)
HA30 AG4
HA31 A30# R8 62/6 -CPURST
AG5 A31# VTT_OL
AH4 A32#
AH5 A33#
AJ5 A34#
AJ6 A35#
AC4 RSVD
AE4 RSVD
B -HADSTB1 B
(8) -HADSTB1 AD5 ADSTB1#
LGA775
CR1
CPU RETAINTION/X
VCORE VCORE
+
+
+
SBC2 SBC3 SBC4 BC21 BC22 BC23 BC24
100U/2V/SPCAP/X 100U/2V/SPCAP/X 100U/2V/SPCAP/X 10U/12/X/6.3V 10U/12/X/6.3V 10U/12/X/6.3V 10U/12/X/6.3V
A A
VCORE
VCORE
BC25 BC26 BC27 BC29
BC30 BC31 BC20 10U/12/X/6.3V/X 10U/12/X/6.3V/X 10U/12/X/6.3V 10U/12/X/6.3V
10U/12/X/6.3V 10U/12/X/6.3V 10U/12/X/6.3V GIGABYTE
Title
P4_LGA775-A
Size Document Number Rev
Custom GA-8I915G-MFD 1.0
Date: , 10, 2004 Sheet 4 of 41
5 4 3 2 1
5 4 3 2 1
D D
U1B
HD[0..15]
(8) HD[0..15] HD[32..47] (8)
HD0 B4 G16 HD32
HD1 D00# D32# HD33
C5 D01# D33# E15
HD2 A4 E16 HD34
HD3 D02# D34# HD35
C6 D03# D35# G18
HD4 A5 G17 HD36
HD5 D04# D36# HD37
B6 D05# D37# F17
HD6 B7 F18 HD38
HD7 D06# D38# HD39
A7 D07# D39# E18
HD8 A10 E19 HD40
HD9 D08# D40# HD41
A11 D09# D41# F20
C HD10 B10 E21 HD42 C
HD11 D10# D42# HD43
C11 D11# D43# F21
HD12 D8 G21 HD44
HD13 D12# D44# HD45
B12 D13# D45# E22
HD14 C12 D22 HD46
HD15 D14# D46# HD47
D11 D15# D47# G22
-DBI0 A8 D19 -DBI2
(8) -DBI0 DBI0# DBI2# -DBI2 (8)
STBN0 C8 G20 STBN2
(8) STBN0 DSTBN0# DSTBN2# STBN2 (8)
STBP0 B9 G19 STBP2
(8) STBP0 DSTBP0 DSTBP2 STBP2 (8)
HD[16..31]
(8) HD[16..31] HD[48..63] (8)
HD16 G9 D20 HD48
HD17 D16# D48# HD49
F8 D17# D49# D17
HD18 F9 A14 HD50
HD19 D18# D50# HD51
E9 D19# D51# C15
HD20 D7 C14 HD52
HD21 D20# D52# HD53
E10 D21# D53# B15
HD22 D10 C18 HD54
HD23 D22# D54# HD55
F11 D23# D55# B16
HD24 F12 A17 HD56
HD25 D24# D56# HD57
D13 D25# D57# B18
HD26 E13 C21 HD58
HD27 D26# D58# HD59
G13 D27# D59# B21
HD28 F14 B19 HD60
HD29 D28# D60# HD61
G14 D29# D61# A19
HD30 F15 A22 HD62
HD31 D30# D62# HD63
G15 D31# D63# B22
-DBI1 G11 C20 -DBI3
(8) -DBI1 DBI1# DBI3# -DBI3 (8)
STBN1 G12 A16 STBN3
(8) STBN1 DSTBN1# DSTBN3# STBN3 (8)
STBP1 E12 C17 STBP3
(8) STBP1 DSTBP1 DSTBP3 STBP3 (8)
B B
LGA775
A A
GIGABYTE
Title
P4_LGA775-C
Size Document Number Rev
Custom GA-8I915G-MFD 1.0
Date: , 10, 2004 Sheet 5 of 41
5 4 3 2 1
5 4 3 2 1
VCC3
Note:
Place outside of CPU socket
VCCA & VCOREPLL R1519 R1514
249/6/1 110/6/1 R10 100/6/1 COMP2
define doesn't same as VTT_OL
R11 100/6/1 COMP3
VTT_GMCH old P4 design kit
3
C5 R14 60.4/6/1 COMP0
L1 10UH/8/S VCCA 0.1U/6/Y/25V R15 60.4/6/1 COMP1
D
C6 BC33 R17 G S
D D
1U/6/Y/10V 4.7U/8/Y/10V 0/SHT/X SOT23
TESTHI0
2
1
(7,8) GTL_DET
VSSA Trace width doesn't
Q258
less than 12 Mil 2N7002/SOT23 R1515 C1290
C7 BC32 61.9/6/1 0.1U/6/Y/25V RN2
1U/6/Y/10V 4.7U/8/Y/10V 470/8P4R
L2 10UH/8/S VCOREPLL 7 8 FSBSEL1
VTT_GMCH
U1C 5 6 FSBSEL0
As close as possible to 3 4 FSBSEL2
1 2
CPU socket -SMI P2 F26 TESTHI0
(19) -SMI SMI# TESTHI00
-A20M K3 W3 TESTHI1 R22 62/6 TESTHI2_7
(19) -A20M A20M# TESTHI01
-FERR