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5 4 3 2 1
Model Name: 8I915G DUO
REV1.4
SHEET TITLE SHEET TITLE
D D
01 COVER SHEET 23 PCI SLOT
02 BLOCK DIAGRAM 24 PCI EXPRESS*1 SLOT
03 BOM & PCB MODIFY HISTORY 25 ITE8712HX
04 P4_LGA775_A 26 HWMO/FAN/FWH BIOS
05 P4_LGA775_B 27 KB_MS/GAME
06 P4_LGA775_C 28 COM/LPT/FDD
C
07 P4_LGA775_D 29 (FRONT+REAR)USB/RING/IDE C
08 VCORE POWER 30 AZALIA CODEC ALC880/CMI9880
09 GMCH-GRANTSDALE_HOST 31 AUDIO JACK
10 GMCH-GARNTSDALE_DDR 32 LAN BCM5705E/5751
11 GMCH-GRANTSDALE_PCI E, DMI 33 LAN BCM5751
12 GMCH-GRANTSDALE_INT VGA 34 ATX POWER CONN.
13 GMCH-GRANTSDALE_GND 35 ALL POWER
14 GMCH-GRANTSDALE_PWR 36 1394 TSB43AB23
B B
15 DDR CHANNEL A 37 FRONT PANEL/BZ
16 DDR CHANNEL B 38 RAID VIA6410
17 DDR TERMINATION 39 RAID IDE CONNECTOR
18 PCI EXPRESS*16 SLOT 40 GPIO TABLE
19 ICH6 PCI, USB, DMI, LAN 41 RESET TABLE
20 ICH6 IDE, GPIO, SATA, CTRL
21 ICH6 VCC, GND
A A
22 CLK GEN
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
(1 oz. Copper)
Custom 8I915G DUO 1.4
Date: Thursday, April 07, 2005 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 PAGE 4, 5, 6,7
VCC3 VCORE = 1.75V (650-1100MHZ) / SLEEP : 1.3V
CKVDD = 3.3V PAGE 22 5VSB,-12V,+12V,VCC,VCC3,3VDUAL
VTT_DDR,2_5VSTR PAGE 8,34,35
CHANNEL A
DDRII DIMM X 1
GMCH DDRI DIMM X 1
GAD0~31 2_5VSTR = 2.5V(MEMORY,SUSPEND POWER)
ADSTB0,ADSTB0- MAA0~14 VTT_DDR = 1.25V PAGE 15,17
ADSTB1,ADSTB1-
GRANTSDALE MAA_CPC1~5
SBA0~7 MAB_CPC1~5
PCI EXPRESS SBSTB,SBSTB- MDD0~63 CHANNEL B
BY 16 PORTS -DQSD0~7 DDRII DIMM X 1
VDDQ = 1.5V (AGP POWER 4X) GCBE0~3- DDRI DIMM X 1
VCC3 = 3.3V DM0~7
+12V = 12V ST0~2
3VDUAL = 3.3V 2_5VSTR = 2.5V(MEMORY,SUSPEND POWER)
VCC = 5V PAGE 18 VCORE = 1.75V / SLEEP : 1.3V VTT_DDR = 1.25V PAGE 16,17
2_5VSTR = 2.5V(MEMORY)
VDDQ = 1.5V (AGP POWER 4X, HUBLINK) PAGE 9,10,11,12,13,14
C C
AGPUSB+ / -
HL0~10
CONTROL BUS
HUB LINK
IDE Primary
ICH6
VCC = 5V PAGE 29
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 29 RTCVDD = 3.3V VCC = 5V PAGE 20
PAGE 19,20,21
AZALIA
PCI BUS
LINK
B FWH/HWMO B
PCI SLOT
AC97/Azalia +12 = 12V
PCI EXPRESS SLOT VCC = 5V
VCC3 = 3V PAGE 26
-12 = -12V
ALC880/CMI9880
+12V = 12V
VCC = 5V
VCC3 = 3V
3VDUAL = 3V PAGE 23,24
VCC3 = 3.3V
VCC = 5V
AVDD = 5V PAGE 30
LAN BCM5721/5751 LPC BUS
LPC ITE8712HX
AUDIO PORTS : FRONT AUDIO PAGE 32,33
LIN_ OUT LINE_IN MIC VCC = 5V
5VSB = 5V
VBAT = 3V PAGE 25
TELE CD_IN AUX_IN
PAGE 31 1394 IT TSB43AB23
PAGE 36
A I/O PORTS : A
RAID VIA6410 COMA COMB LPT PS2 IR FDD
PAGE 27,28,29
FRONT PANEL/BZ
VCC = 5V PAGE 38,39 GIGABYTE
5VSB = 5V
+12 = 12V Title
PVCC = 5V PAGE 37 BOM & PCB MODIFY HISTORY
Size Document Number Rev
Custom 8I915G DUO 1.4
Date: Thursday, April 07, 2005 Sheet 2 of 41
5 4 3 2 1
5 4 3 2 1
Model Name: 8I915G DUO Circuit or PCB layout change
Version: 1.4 for next version
PAGE Change Item Reason
D 0317 LIB CHANGE D
Component value change
2004/05/19
2004/05/19
history
Data Change Item Reason
0317 ADD 2ND SOUSE *** *** *********************************
L10 1UH/8/180mA/S(10LI2-07100B-01/10LI2-041001-04) 1UH/8/180mA/S(10LI2-07100B-01/10LI2-041001-04/10LI2-07100B-11)
L15 1UH/8/180mA/S(10LI2-07100B-01/10LI2-041001-04) 1UH/8/180mA/S(10LI2-07100B-01/10LI2-041001-04/10LI2-07100B-11)
Q190 SUD50N024-09P/APM2014N/IRLR3715/TO252 10IF4-083918-01R_10IF4-492409-01R_10IF4-098880-10R/TO252
Q191 SUD50N024-09P/APM2014N/IRLR3715/TO252 10IF4-083918-01R_10IF4-492409-01R_10IF4-098880-10R/TO252
Q42 SUD50N024-09P/TO252 10IF4-083918-01R_10IF4-492409-01R_10IF4-098880-10R/TO252
Q44 SUD50N024-09P/TO252 10IF4-083918-01R_10IF4-492409-01R_10IF4-098880-10R/TO252
LIB CHANGE *** *** *********************************
DL2 0.6uH/D/30A/5018/3PM/(TAI/EMC) 0.6uH/TO-5018/40A/1P/[11LC5-40600C-D1]
DL3 0.6uH/D/30A/5018/3PM/(TAI/EMC) 0.6uH/TO-5018/40A/1P/[11LC5-40600C-D1]
DL4 0.6uH/D/30A/5018/3PM/(TAI/EMC) 0.6uH/TO-5018/40A/1P/[11LC5-40600C-D1]
DL5 0.6uH/D/30A/5018/3PM/(TAI/EMC) 0.6uH/TO-5018/40A/1P/[11LC5-40600C-D1]
L1 10UH/8/100mA/S(10LI2-00100A-01/02/03) 10UH//120mA/8/S/[10LI2-12100A-01_10LI2-12100A-02_10LI2-12100A-03_10LI2-12100A-13]
C L2 10UH/8/100mA/S(10LI2-00100A-01/02/03) 10UH//120mA/8/S/[10LI2-12100A-01_10LI2-12100A-02_10LI2-12100A-03_10LI2-12100A-13] C
0401 Q187 ADD 2ND SOURCE 10GL6-501085-01R
0407 N/B VERSION CHANGE TO C2 10HB1-032940-61
B B
A A
GIGABYTE
Title
BOM & PCB MODIFY HISTORY
Size Document Number Rev
Custom 8I915G DUO 1.4
Date: Thursday, April 07, 2005 Sheet 3 of 41
5 4 3 2 1
5 4 3 2 1
VCORE
BC1 BC4 BC5
10U/12/X/6.3V/X 10U/12/X/6.3V 10U/12/X/6.3V/X
D D
VCORE
BC6 BC7 BC8 BC9 BC10
10U/12/X/6.3V 10U/12/X/6.3V/X 10U/12/X/6.3V 10U/12/X/6.3V 10U/12/X/6.3V/X
U1A
HA[3..16]
(9) HA[3..16]
HA3 L5 D2 -HADS Closed to
A03# ADS# -HADS (9)
HA4 P6 C2 -BNR
A04# BNR# -BNR (9) Pin-H1
HA5 M5 D4 -HIT
A05# HIT# -HIT (9)
HA6 L4 H4 R1
HA7 A06# RSP# -BPRI 49.9/6/1 GTLREF
M4 A07# BPRI# G8 -BPRI (9) VTT_OR
HA8 R4 B2 -DBSY
A08# DBSY# -DBSY (9)
HA9 T5 C1 -DRDY
A09# DRDY# -DRDY (9)
HA10 U6 E4 -HITM BC11 R2 C3
A10# HITM# -HITM (9)
HA11 -IERR 0.01U/6/X/50V 100/6/1 1U/6/Y/10V
HA12
T4
U5
A11# IERR# AB2
P3 -HINIT
*
A12# INIT# -HINIT (20)
HA13 U4 C3 -HLOCK
A13# LOCK# -HLOCK (9)
HA14 V5 E3 -HTRDY C2
A14# TRDY# -HTRDY (9)
HA15 V4 AD3 33P/4/N/50V
C HA16 A15# BINIT# -DEFER C
W5 A16# DEFER# G7 -DEFER (9)
N4 F2 -EDRDY
RSVD EDRDY# -EDRDY (9)
P5 RSVD MCERR# AB3
-HREQ0 K4
(9) -HREQ0 REQ0#
-HREQ1 J5 U2
(9) -HREQ1 REQ1# AP0# TP_CPU1
-HREQ2 M6 U3
(9) -HREQ2 REQ2# AP1# TP_CPU2
-HREQ3 K6
(9) -HREQ3 REQ3#
-HREQ4 J6 F3 -BR0
(9) -HREQ4 REQ4# BR0# -BR0 (9)
-HADSTB0 R6 G3 TESTHI8
(9) -HADSTB0 ADSTB0# TESTHI08 TESTHI8 (5)
-HPCREQ G5 G4 TESTHI9
HA[17..31] (9) -HPCREQ PCREQ# TESTHI09 TESTHI9 (5)
H5 TESTHI10
(9) HA[17..31] TESTHI10 TESTHI10 (5)
HA17 AB6
HA18 A17#
W6 A18# DP0# J16 TP_CPU3
HA19 C1
Y6 A19# DP1# H15 TP_CPU4
HA20 Y4 H16 220P/4/N/25V
A20# DP2# TP_CPU5
HA21 AA4 J17
A21# DP3# TP_CPU6
HA22 AD6 R1539 62/6/X -IERR
A22# VTT_OR
HA23 AA5 H1 GTLREF
HA24 A23# GTLREF
AB5 A24#
HA25 AC5 G23 -CPURST R6 62/6 -IERR
A25# RESET# -CPURST (9) VTT_OL
HA26 AB4
HA27 A26# -RS0
AF5 A27# RS0# B3 -RS0 (9)
HA28 AF4 F5 -RS1 C4 R7 62/6 -BR0
A28# RS1# -RS1 (9) VTT_OL
SP-CAP X 4PCS HA29
HA30
AG6
AG4
A29# RS2# A3 -RS2
-RS2 (9)
22P/4/N/50V
HA31 A30# R8 62/6 -CPURST
AG5 A31# VTT_OL
AH4 A32#
VCORE AH5 A33#
AJ5 A34#
AJ6 A35#
AC4 RSVD
B B
AE4
+
+
SEC1 SEC2 -HADSTB1 AD5 RSVD
(9) -HADSTB1 ADSTB1#
100U/4V/SPCAP/X
LGA775
100U/4V/SPCAP/X
VCORE
+
+
+
+
EC1 EC2 EC129 EC130
100U/4V/SPCAP/9m/X 100U/4V/SPCAP/9m/X
100U/4V/SPCAP/X 100U/4V/SPCAP/X CR
CPU RETAINTION/X
A A
GIGABYTE
Title
P4_LGA775-A
Size Document Number Rev
Custom 8I915G DUO 1.4
Date: Thursday, April 07, 2005 Sheet 4 of 41
5 4 3 2 1
5 4 3 2 1
VCC3
Note: R1538 R1593 Place outside of CPU socket
VCCA & VCOREPLL 249/6/1 49.9/6/1/X GTLREF1
VTT_OR
R10 100/6/1 COMP2
define doesn't same as VTT_OL
3
R23 R11 100/6/1 COMP3
VTT_GMCH old P4 design kit
10UH//120mA/8/S/[10LI2-12100A-01_10LI2-12100A-02_10LI2-12100A-03_10LI2-12100A-13] Q262 R1594 C1290
L1 D 110/6/1 100/6/1/X 1U/6/Y/10V/X C5 R14 60.4/6/1 COMP0
VCCA 2N7002/SOT23 0.1U/6/Y/25V R15 60.4/6/1 COMP1
G S
SOT23
(7,9) GTL_DET
2
1
D C6 BC213 R17 TESTHI0 D
1U/6/Y/10V 4.7U/8/Y/10V 0/SHT/X R1595 60.4/6/1/X COMP2
R1596 60.4/6/1/X COMP3
VSSA Trace width doesn't R1224 C439
61.9/6/1 0.1U/6/Y/25V
less than 12 Mil
C7 BC214 RN103
L2 1U/6/Y/10V 4.7U/8/Y/10V 470/8P4R
VCOREPLL 7 8 FSBSEL0
VTT_GMCH
U1C 5 6 FSBSEL2
10UH//120mA/8/S/[10LI2-12100A-01_10LI2-12100A-02_10LI2-12100A-03_10LI2-12100A-13]
As close as possible to 3 4 FSBSEL1
1 2
CPU socket -SMI P2 F26 TESTHI0
(20) -SMI SMI# TESTHI00
-A20M K3 W3 TESTHI1 R22 62/6 TESTHI2_7
(20) -A20M A20M# TESTHI01
-FERR R3 P1 TESTHI11
(20) -FERR FERR#/PBE# TESTHI11
INTR K1 W2 TESTHI12
(20) INTR LINT0 TESTHI12
NMI L1 F25
(20) NMI LINT1 TESTHI02
-IGNNE N2 G25 R24 62/6 -THRMTRIP
(20) -IGNNE IGNNE# TESTHI03
-STPCLK M3 G27 Locate at ICH6 Side
(20) -STPCLK STPCLK# TESTHI04
G26 R25 62/6 -FERR
FSBSEL1 VCCA TESTHI05
A23 VCCA TESTHII06 G24
VSSA B23 F24 TESTHI2_7
VCC VSSA TESTHI07 -FORCEPR
D23 RSVD RSVD AK6 -FORCEPR (37)
3
VCOREPLL C23 G6 RSVD_G6
Q278 VCCIOPLL RSVD R26 62/6/X RSVD_G6
D VTT_OL
R1598 VID0 AM2 L2 -CPUSLP
VID[0..5] VID0 SLP# -CPUSLP (20)
2N7002/SOT23 VID1 AL5 AH2 R27 62/6 TESTHI12
8.2K/6 G S (8) VID[0..5] VID1 RSVD
VID2 AM3 N1 CPUPWROK
VID2 PWRGOOD CPUPWROK (20)
VID3 AL6 AL2 -PROCHOT R29 62/6 TESTHI1
-PROCHOT (37)
2
1
VTT_GMCH VID4 VID3 PROCHOT# -THRMTRIP
AK4 VID4 THERMTRIP# M2 -THRMTRIP (20)
VID5 AL4 VID5
3
C AM5 A13 COMP0 C
R1599 Q279 RSVD COMP0 COMP1 RN104 7 TESTHI8
COMP1 T1 8 TESTHI8 (4)