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Model Name: 8I915G PRO REV2.1
SHEET TITLE SHEET TITLE
D D
01 COVER SHEET 23 PCI SLOT 1
02 BLOCK DIAGRAM 24 PCI EXPRESS*1 SLOT 1,2
03 BOM & PCB MODIFY HISTORY 25 ITE8712HX
04 P4_LGA775_A 26 HWMO/SMART_FAN/PROCESSOR_HOT
05 P4_LGA775_C 27 KB_MS/GAME
06 P4_LGA775_B 28 COM/LPT/FDD
C
07 P4_LGA775_D,E,F,G 29 (FRONT+REAR)USB/RING/IDE C
08 VCORE POWER 30 AZALIA CODEC ALC880/CMI9880
09 GMCH-GRANTSDALE_HOST 31 REAR AUDIO JACK
10 GMCH-GARNTSDALE_DDR 32 FRONT AUDIO CONNECTOR
11 GMCH-GRANTSDALE_PCI E, DMI 33 MARVELL 88E8001 LAN
12 GMCH-GRANTSDALE_INT VGA 34 ATX POWER CONN./DUAL BIOS
13 GMCH-GRANTSDALE_GND 35 DISCRETE POWER
14 GMCH-GRANTSDALE_PWR 36 TI TSB43AB23 1394A
B B
15 DDR CHANNEL A 37 FRONT PANEL/CURRENT_OUT
16 DDR CHANNEL B 38 RAID IT8212 (1)
17 DDR TERMINATION 39 RAID IT8212 (2)
18 PCI EXPRESS*16 SLOT 40 GPIO CONFIGURATION
19 ICH6 PCI, USB, DMI, LAN 41 GPIO & RESET CONFIGURATION
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) Cover Sheet
GND SIDE
(1 oz. Copper) Size Document Number Rev
SOLDER SIDE Custom 8I915G PRO 2.1
(1 oz. Copper)
Date: Thursday, November 11, 2004 Sheet 1 of 41
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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 8,33,34
CHANNEL A
DDR SDRAM DIMM X 2
GAD0~31 GMCH 2_5VSTR = 2.5V(MEMORY,SUSPEND POWER)
ADSTB0,ADSTB0- GRANTSDALE MAA0~14 VTT_DDR = 1.25V PAGE 15
ADSTB1,ADSTB1- MAA_CPC1~5
SBA0~7 MAB_CPC1~5
PCI EXPRESS SBSTB,SBSTB- MDD0~63 CHANNEL B
BY 16 PORTS
VDDQ = 1.5V (AGP POWER 4X) GCBE0~3-
-DQSD0~7
DM0~7
DDR SDRAM DIMM X 2
VCC3 = 3.3V
+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
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
PCI BUS
B FWH/HWMO B
PCI SLOT 1
+12 = 12V
PCI EXPRESS BY VCC = 5V
VCC3 = 3V PAGE 26
AZALIA
LINK
-12 = -12V
VCC = 5V
VCC3 = 3V
1,2 SLOT
3VDUAL = 3V PAGE 23,24
LAN RTL8110S/8100C LPC BUS
AC97/Azalia ALC880 LPC ITE8712HX
PAGE 32
+12V = 12V
VCC3 = 3.3V VCC = 5V
VCC = 5V 5VSB = 5V
AVDD = 5V PAGE 30 VBAT = 3V PAGE 25
1394 IT TSB43AB23
PAGE 35
A AUDIO PORTS : FRONT AUDIO I/O PORTS : A
LIN_ OUT LINE_IN MIC
TELE CD_IN AUX_IN COMA COMB LPT PS2 IR FDD
PAGE 31 PAGE 27,28,29
FRONT PANEL/BZ
VCC = 5V GIGABYTE
5VSB = 5V
+12 = 12V Title
PVCC = 5V PAGE 36 BOM & PCB MODIFY HISTORY
Size Document Number Rev
Custom 8I915G PRO 2.1
Date: Thursday, November 11, 2004 Sheet 2 of 41
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Model Name: 8I915G PRO Circuit or PCB layout change
for next version
PAGE Change Item Reason
D
2.1 -