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GIGABYTE GA-6OXT Reference Schematics
Revision : 1.0
4 4
TITLE SHEET ICH2
GPIO FUNCTION PULL UP/DOWN
1 ** GPI0/REQA-
COVER SHEET PRI_DWN- PULL UP 4.7K TO VCC3
INTEL PIII SOCKET-370 2,3,4 GPI1/REQ5- REQ5- PULL UP 2.7K TO VCC
GMCH (INTEL 82815 EP ) 5,6,7 GPI2/PIRQE- NOT USED PULL UP 8.2K TO VCC3
SDRAM SOCKET (DIMM1,DIMM2,DIMM3) 8,9,10 GPI3/PIRQF- PIRQF- PULL UP 8.2K TO VCC3
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AGP SLOT 11 GPI4/PIRQG- PIRQG- PULL UP 2.7K TO VCC
ICH2 (INTEL 82801BA) 12,13,14 GPI5/PIRQH- NOT USED PULL UP 8.2K TO VCC3
15 ** GPI6
CLOCK SYNTHESIZER GREEN BUTTON PULL UP 8.2K TO 3VDUAL
** GPI7 AGP/DIMM
3
PCI SLOTS ( PCI1,PCI2,PCI3,PCI4,PCI5 ) 16,17,18 OVER VOLTAGE PULL UP 8.2K TO VCC3 3
** GPI8
FWH ( SST 49SL002A ) 18 REV. ID PULL UP 4.7K TO 3VDUAL
** GPI11
IDE CONNECTORS (IDE1,IDE2) 19 REV. ID PULL UP 4.7K TO 3VDUAL
** GPI12
BUZZER & FRONT PANEL & WOL & STR LED 20 LPCPME- PULL UP 8.2K TO 3VDUAL
** GPI13 SMART CARD
CODEC ( REALREK 201A ) 21 READER PULL UP 4.7K TO 3VDUAL
PULL 8.2K TO VCC3(CAN'T PULL DOWN).Because
AUDIO PHONE JACK & FRONT AUDIO 22 GPO16/GNTA- NOT USED BIOS Address Decode Incorrect : FF
CNR SOLT 23 GPO17/GNT5- GNT5- PULL 8.2K TO VCC3
LPC ( IT8712/DX ) & SCR 24 GPO18 NOT USED
COM & LPT PORTS & FLOPPY 25 GPO19 NOT USED
** GPO20 AGP OVER
H/W MONITOR & FAN 26 VOLTAGE 1.6V
** GPO21 AGP OVER
PS2 CONNECT & FRONT SMBUS & IR/CIR & USB 27
2 2
VOLTAGE 1.7V
ATX POWER & STR LDO & 5VDUAL & VCC18 28 GPO22 NOT USED PULL 8.2K TO VCC3
VCC_CORE DC-DC CONVERTER 29 GPO23 NOT USED
** GPIO24
HISTORY 30 REV. ID PULL 4.7K TO 3VDUAL
** GPIO25 BIOS WRITE
PROTECT
JUMPER SETTING ** DIMM OVER
CLR_CMOS Digitally signed** GPIO27
by dd VOLTAGE 3.5V
DIMM OVER
GPIO28 VOLTAGE 3.4V
1-2 CLEAR CMOS DN: cn=dd, o=dd, ou=dd,
2-3 NORMAL
BIOS_WP
email=dddd@yahoo. I/OLPC
GPIO FUNCTION PULL UP/DOWN
** GP50/CLKRUN-
1-2 WRITE PROTECT com, c=US STR FUNCTION PULL DOWN 4.7K TO GND
2-3 NORMAL Date: 2009.10.23 06:43:42
1 1
CODEC_EN +07'00'
1-2 ENABLE GIGABYTE CORP.
2-3 DISABLE Title
COVER
Size Document Number Rev
Custom 1.0
GA-6OXT
Date: Wednesday, October 17, 2001 Sheet 1 of 30
A B C D E
8 7 6 5 4 3 2 1
VCORE
HA[3..31]
HA[3..31] (4,5)
HD[0..63]
(4,5) HD[0..63]
AM12
AM16
AM20
AM24
AM28
AM32
AH32
AK34
AJ13
AJ17
AJ21
AJ25
AJ29
AM4
AM8
AK2
AB2
AE5
AA5
AF2
D20
D24
D28
R32
B26
B10
E13
B14
E17
B18
B30
V32
AJ5
AJ9
F22
F26
F30
Z32
W5
C3
N5
D6
P2
K2
E5
S5
B6
E9
U1A
T2
F4
F2
J5
HD0 W1 AK8 HA3
VCC10
VCC11
VCC12
VCC13
VCC14
VCC15
VCC16
VCC17
VCC18
VCC19
VCC20
VCC21
VCC22
VCC23
VCC24
VCC25
VCC26
VCC27
VCC28
VCC29
VCC30
VCC31
VCC32
VCC33
VCC34
VCC35
VCC36
VCC37
VCC38
VCC39
VCC40
VCC41
VCC42
VCC43
VCC44
VCC45
VCC46
VCC47
VCC48
VCC49
VCC50
VCC51
VCC52
VCC1
VCC2
VCC3
VCC4
VCC5
VCC6
VCC7
VCC8
VCC9
HD1 HD#0 HA#3 HA4
D T4 AH12 D
HD2 HD#1 HA#4 HA5
N1 AH8
HD3 HD#2 HA#5 HA6
M6 AN9
HD4 HD#3 HA#6 HA7
U1 AL15
HD5 HD#4 HA#7 HA8
S3 AH10
HD6 HD#5 HA#8 HA9
T6 AL9
HD7 HD#6 HA#9 HA10
J1 AH6
HD8 HD#7 HA#10 HA11
S1 AK10
HD9 HD#8 HA#11 HA12
P6 AN5
HD10 HD#9 HA#12 HA13
Q3 AL7
HD11 HD#10 HA#13 HA14
M4 AK14
HD12 HD#11 HA#14 HA15
Q1 AL5
HD13 HD#12 HA#15 HA16
L1 AN7
HD14 HD#13 HA#16 HA17
N3 AE1
HD15 HD#14 HA#17 HA18
U3 Z6
HD16 HD#15 HA#18 HA19
H4 AG3
HD17 HD#16 HA#19 HA20
R4 AC3
HD18 HD#17 HA#20 HA21
P4 AJ1
HD#18 HA#21
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HD19 H6 AE3 HA22
HD20 HD#19 HA#22 HA23
L3 AB6
HD21 HD#20 HA#23 HA24
G1 AB4
HD22 HD#21 HA#24 HA25
F8 AF6
HD23 HD#22 HA#25 HA26
G3 Y3
HD24 HD#23 HA#26 HA27
K6 AA1
HD25 HD#24 HA#27 HA28
E3 AK6
HD26 HD#25 HA#28 HA29
E1 Z4
HD27 HD#26 HA#29 HA30
F12 AA3
HD28 HD#27 HA#30 HA31 VID[0..3]
A5 AD4 VID[0..3] (24,29)
HD29 HD#28 HA#31
A3
HD30 HD#29 VID0
C J3 AL35 C
HD31 HD#30 VID0 VID1
C5 AM36
HD32 HD#31 VID1 VID2
F6 AL37
HD33 HD#32 VID2 VID3
C1 AJ37
HD34 HD#33 VID3
C7
HD35 HD#34 RS0-
B2 AH26 RS0- (4,5)
HD36 HD#35 RS#0 RS1-
C9 AH22 RS1- (4,5)
HD37 HD#36 RS#1 RS2-
A9 AK28 RS2- (4,5)
HD38 HD#37 RS#2
D8
HD39 HD#38 HREQ0-
D10 AK18 HREQ0- (4,5)
HD40 HD#39 REQ#0 HREQ1-
C15 AH16 HREQ1- (4,5)
HD41 HD#40 REQ#1 HREQ2-
D14 AH18 HREQ2- (4,5)
HD42 HD#41 REQ#2 HREQ3-
D12 AL19 HREQ3- (4,5)
HD43 HD#42 REQ#3 HREQ4-
A7 AL17 HREQ4- (4,5)
HD44 HD#43 REQ#3
A11
HD45 HD#44
C11 AH20 VTT
HD46 HD#45 RSRVD1
A21
HD47 HD#46
A15 A29
HD48 HD#47 RSRVD3
A17 A31
HD49 HD#48 RSRVD4
C13 A33
HD50 HD#49 RSRVD5
C25 AA33
HD51 HD#50 RSRVD6
A13 AA35
HD52 HD#51 RSRVD7
D16 AC1
HD53 HD#52 RSRVD8
A23 AC37
HD54 HD#53 RSRVD9
C21 AF4
HD55 HD#54 RSRVD10
C19 AK16
HD56 HD#55 RSRVD11
C27 AK24
HD57 HD#56 RSRVD12
A19 AK30
HD58 HD#57 RSRVD13
C23 AL11
HD59 HD#58 RSRVD14
B C17 AL13 B
HD60 HD#59 RSRVD15
A25 AL21
VTTPWRGD
HD61 HD#60 RSRVD16
A27 AN11
HD62 HD#61 RSRVD17
E25 AN13
GND10
GND11
GND13
GND14
GND15
GND16
GND17
GND18
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
HD#62 RSRVD18
GND1
GND2
GND3
GND4
GND5
GND6
GND7
GND8
GND9
HD63 F16
HD#63
AM34
AM10
AM14
AM18
AM22
AM26
AM30
AJ11
AJ15
AJ19
AJ23
AJ27
AM2
AM6
AG5
AH2
AD2
AC5
AK4
D18
D22
D26
D30
AL3
E11
B12
E15
B16
E19
B20
B24
B28
SK370/GF/B
AJ7
F20
F24
F28
M2
Q5
G5
H2
D2
U5
D4
V2
Y5
B4
E7
B8
Z2
L5
R783 1 2 10K/6 VTT
BC315
0.1U/6/Y/25V
VCORE VCORE VCORE
A A
SC34
4.7U/8/Y/10V/X
SC36
4.7U/8/Y/10V
SC38
4.7U/8/Y/10V/X
BC283
0.1U/6/Y/25V
BC285
0.1U/6/Y/25V
BC287
0.1U/6/Y/25V/X
BC23
0.1U/6/Y/25V
BC25
0.1U/6/Y/25V
BC26
0.1U/6/Y/25V
BC4
0.1U/6/Y/25V
BC22
0.1U/6/Y/25V Title
GIGABYTE CORP.
SC35 SC37 BC284 BC286 BC288 BC24 BC20 BC5 BC21
4.7U/8/Y/10V 4.7U/8/Y/10V/X 0.1U/6/Y/25V 0.1U/6/Y/25V/X 0.1U/6/Y/25V/X 0.1U/6/Y/25V 0.1U/6/Y/25V 0.1U/6/Y/25V 0.1U/6/Y/25V SOCKET 370 1/2
Size Document Number Rev
Custom 1.0
GA-6OXT
Date: Wednesday, October 17, 2001 Sheet 2 of 30
8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1
VTT
Close to CPU
2
R50
75/6/1 25 MIL WIDTH VCMOS
VTT
GTLREF
1
1
2