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5 4 3 2 1
Revision 2.2
GIGABYTE GA-8IRM Schematics
SHEET TITLE SHEET TITLE
D D
01 COVER SHEET 23 COM_LPT
02 BOM & PCB MODIFY HISTORY 24 FRONT USB
03 WILLIAMATE_478A 25 FPANEL
04 WILLIAMATE_478B 26 CODEC
05 WILLIAMATE_478C 27 AUDIO_J1
06 MCH-BROOKDALE_A 28 AUDIO_J2
C
07 MCH-BROOKDALE_B 29 AUDIO_J3 C
08 MCH-BROOKDALE_C 30 POWER
09 DDR SERIAL TERMINATION 31 PWM
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10 DDR 1_2 32 DDR POWER
11 DDR TERMINATOR 33 KINNERETH
12 AGP 4X 34 CNR
13 ICH2_1
14 ICH2_2
B B
15 FWH
16 ICS CLOCK GEN
17 PCI1_2
18 PCI3
19 W83627HF LPC IO
20 H/W MONITOR & FAN Digitally signed by fdsf
DN: cn=fdsf, o=fsdfsd, COMPONENT SIDE
(1 oz. Copper)
21 IDE ou=ffsdf, VCC SIDE
(1 oz. Copper)
A
GND SIDE A
22 KB_PS2 email=fdfsd@fsdff, (1 oz. Copper)
SOLDER SIDE
(0.5 oz. Copper)
c=US
GIGABYTE
Date: 2009.12.15 Title
COVER SHEET
20:36:47 +07'00' Size
Custom
Document Number Rev
GA-8IRM 2.2
Date: Tuesday, December 11, 2001 Sheet 1 of 34
5 4 3 2 1
5 4 3 2 1
Model Name: GA-8IRM Circuit or PCB layout change
for next version
Version:2.2 Date Change Item Reason
D D
Component value change
history
Date Change Item Reason
11/06 ADD R1224 FIX AUDIO PRECISSION & PS/2 ,
USB MOUSE NOISE ISSUE
11/19 CHANGE M-ATX
C C
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B B
A A
GIGABYTE
Title
BOM & PCB MODIFY HISTORY
Size Document Number Rev
Custom GA-8IRM 2.2
Date: Tuesday, December 11, 2001 Sheet 2 of 34
5 4 3 2 1
5 4 3 2 1
VCORE
BC5 BC8 BC9 BC10 BC28 BC29
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 D
[ 10U / X5R ]
VCORE
VCORE
VCORE PIN AC14
BC14 BC17 BC18 BC21
10U/12/X/6.3V 10U/12/X/6.3V BC6
10U/12/X/6.3V 10U/12/X/6.3V 10U/12/X/6.3V
PIN AC15
AD11
AD19
AC18
AC16
AC14
AC12
AC10
AD17
AD15
AD13
AE18
AE16
AE14
AE12
AE10
AE20
AB15
AB13
AB11
AB19
AD9
AD7
AC8
AE8
AE6
AB9
AB7
For INTEL
E14
E12
E10
E20
E8
U1A Transient Test
VCORE1
VCORE2
VCORE3
VCORE4
VCORE5
VCORE6
VCORE7
VCORE8
VCORE9
VCORE10
VCORE11
VCORE12
VCORE13
VCORE14
VCORE15
VCORE16
VCORE17
VCORE18
VCORE19
VCORE20
VCORE21
VCORE22
VCORE23
VCORE24
VCORE25
VCORE26
VCORE27
VCORE28
VCORE29
VCORE30
VCORE31
VCORE32
VCORE HA[3..16] VCORE
<6> HA[3..16]
HA16 N5
HA15 A16
N4
A15
HA14 N2 G1 HADS- HADS- <6>
HA13 M1 A14 ADS
AC1
A13 AP0 R3
BC19 BC22 BC23 HA12 N1 V5
A12 AP1
10U/12/Y/10V/X 10U/12/Y/10V/X HA11 M4 AA3
A11 BINIT
10U/12/Y/10V/X HA10 M3 G2 BNR-
A10 BNR BNR- <6>
HA9 L2
A9
HA8 M6 L25 39/6/X
HA7 A8 DP3
L3 K26
A7 DP2
HA6 K1 K25
HA5 A6 DP1
L6 J26
HA4 A5 DP0
K4
C VCORE A4 C
HA3 K2 U6
A3 TESTHI8
HADSTB0- L5 W4
<6> HADSTB0- ADSTB0 TESTHI9
HREQ4- H3 Y3 TESTHI8_10
<6> HREQ4- REQ4 TESTHI10
HREQ3- J3 H6 BR0-
<6> HREQ3- REQ3 BR0 BR0- <6>
HREQ2- J4
BC11 BC15 BC16 BC7 <6> HREQ2- HREQ1- K5
REQ2
D2 BPRI-
<6> HREQ1- REQ1 BPRI BPRI- <6>
10U/12/Y/10V/X 10U/12/Y/10V/X HREQ0- J1
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<6> HREQ0- REQ0
10U/12/Y/10V/X 10U/12/Y/10V/X H5 DBSY-
DBSY DBSY- <6>
AB1 E2 DEFER-
A35 DEFER DEFER- <6>
Y1 H2 DRDY-
A34 DRDY DRDY- <6>
W2 F3 HIT-
HIT- <6>
A33 HIT
<6> HA[17..31] HA[17..31] V3 E3 HITM-
HITM- <6>
A32 HITM
HA31 U4
A31
HA30 T5 AC3
A30 IERR
HA29 W1
A29
VCORE HA28 R6 W5 HINIT-
A28 INIT HINIT- <13,15>
HA27 V2
A27
HA26 T4 G4 HLOCK- C1
A26 LOCK HLOCK- <6>
HA25 U3
A25
HA24 P6 V6 10n/6/X/16V/X
A24 MCERR
BC34 BC35 BC36 BC37 HA23 U1
A23
10U/12/Y/10V/X 10U/12/Y/10V/X HA22 T2 AB25 CPURST-
A22 RESET# CPURST- <4,6>
10U/12/Y/10V/X 10U/12/Y/10V/X HA21 R3 F4 RS2-
A21 RS2 RS2- <6>
HA20 P4 G5 RS1-
A20 RS1 RS1- <6>
HA19 P3 F1 RS0- C2
A19 RS0 RS0- <6>
HA18 R2 AB2
A18 RSP 10n/6/X/16V/X
HA17 T1 J6 HTRDY-
A17 TRDY HTRDY- <6>
HADSTB1- R5
<6> HADSTB1- ADSTB1
GND10
GND11
AE17GND12
AE15GND13
AE13GND14
GND15
GND16
AE26GND17
AB20GND18
GND19
GND20
GND21
GND22
GND23
GND24
GND25
GND26
GND27
GND28
GND29
GND30
GND31
GND32
GND33
GND34
GND35
GND36
GND37
GND38
GND39
GND40
GND41
GND42
GND43
GND44
GND45
GND46
GND47
GND48
GND49
GND50
GND51
GND52
GND53
GND54
GND55
GND56
GND57
GND58
GND59
GND60
AE24GND1
AE22GND2
AE19GND3
GND4
GND5
GND6
AD8 GND7
AD4 GND8
AD1 GND9
B B
AD14
AD12
AD10
AD23
AD21
AC17
AC15
AC13
AC11
AC25
AC22
AC19
AD18
AD16
AE11
AA23
AA19
AB18
AB16
AB14
AB12
AB10
AB24
AB21
AA17
AA15
AA13
W24
W21
AC9
AC7
AC5
AC2
AE7
AE9
AA4
AA1
AB8
AB6
AB3
V23
Y25
Y22
W6
W3
V4
V1
Y5
Y2
SK478/GF/W
VCORE
R15 47/6 TESTHI8_10
R16 220/6 BR0-
R17 47/6 CPURST-
A A
Title
WILLIAMATE 478A
Size Document Number Rev
Custom GA-8IRM 2.2
Date: Tuesday, December 11, 2001 Sheet 3 of 34
5 4 3 2 1
5 4 3 2 1
VCORE VCORE
R18 R19
GTLREF1 GTLREF2
75/6/1
75/6/1
BC39 R20 BC40 BC46 BC43 R21 BC44 BC42
10n/6/X/16V 150/6/1 0.1U/6/Y/25V 10n/6/X/16V 10n/6/X/16V 150/6/1 0.1U/6/Y/25V 10n/6/X/16V
D D
VCORE
COMP0 R26 51.1/6/1
COMP1 R27 51.1/6/1
VCC3 VCC3
AA18
AA16
AA14
AA12
AA10
AB17
AA8
C18
C16
C14
C12
C10
C20
D17
D15
D13
D11
D19
B13
B11
B19
F17
F15
F13
F11
F19
R2