GIGABYTE GA-8I845G User Guide
GA-8I845G(-C)
Intel® Pentium® 4 Socket 478
Rev. 1001
12MC-8I845G-1001
Jun. 24, 2005
Motherboard
GA-8I845G
Jun. 24, 2005
GA-8I845G
Motherboard
© 2005 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
http://www.gigabyte.com.tw
GA-8I845G(-C) .................................................................................. 6
.................................................................................................. 7
................................................................................................... 9
1-1 ..................................................................................... 9
1-2
1-3
1-3-1 ................................................................................................ 11
1-3-2 ..................................................................................................... 12
1-4 ....................................................................................... 13
1-5
1-6
1-7
..................................................................................................... 10
................................................................. 11
................................................................................................ 14
................................................................................... 15
....................................................................................... 16
BIOS ........................................................................................ 27
(BIOS F1a) .................................................................. 28
2-1 Standard CMOS Features (
2-2 Advanced BIOS Features (
2-3 Integrated Peripherals (
2-4 Power Management Setup (
2-5 PnP/PCI Configurations (
2-6 PC Health Status (
2-7 Frequency/Voltage Control (
2-8 Top Performance (
2-9 Load Fail-Safe Defaults (
2-10 Load Optimized Defaults (
2-11 Set Supervisor/User Password (
2-12 Save & Exit Setup (
2-13 Exit Without Saving (
CMOS ) ........................................... 30
BIOS ) ..................................... 32
) .................................................... 34
) ............................................. 36
PCI ) ............................. 38
) ............................................................ 39
/ ) .......................................... 40
..................................................................... 41
Fail-Safe ) ...................................... 42
Optimized ) ................................... 42
/ ) .................. 43
SETUP ) ................................ 44
SETUP ) ......................... 44
- 4 -
........................................................................................ 47
3-1 .............................................................................. 47
3-2
3-3
3-4
3-5
............................................................................................ 48
..................................................................................................... 48
..................................................................................................... 49
................................................................................................ 49
.......................................................................................................... 51
4-1 ............................................................................................ 51
4-1-1 Xpress Recovery ......................................................................................... 51
4-1-2 BIOS .......................................................................................... 54
4-1-3 / / ................................................................ 63
4-2 ..................................................................................................... 69
- 5 -
GA-8I845G(-C)
KB_MS
COMA
VGA
LINE_OUT
LINE_IN
MIC_IN
USB
CODEC
CD_IN
LPT
GAME
)
*
(
LAN
RTL
8100C (*
IT8712
CPU_FAN
ATX_12V
SUR_CEN
)
AUX_IN
SPDIF_IO
MOSHSINK
F_AUDIO
Socket 478
ATX
Intel 845G
GA-8I845G
AGP
DDR1
DDR2
PCI1
PCI2
PCI3
PCI4
PCI5
IDE2
CI
COMB
F_USB1
F_USB2
IDE1
CLR_CMOS
Intel
ICH4
BIOS
DDR3
BAT
PWR_LED
FDD
SYS_FAN
)
#
(
-C
(*)
GA-8I845G
(#)
GA-8I845G-C
F_PANEL
- 6 -
VGA Port
Pentium 4
Socket 478
CPU
CPUCLK+/- (100/133 MHz)
AGPCLK
(66MHz)
5 PCI
PCICLK
(33MHz)
AGP 4X
RJ45 (*
RTL8100C (*
AC97 Link
AC97
CODEC
MIC
LINE-IN
)
)
LINE-OUT
Intel 845G
6 USB
Ports
System Bus
400/533 MHz
Intel
ICH4
ATA33/66/100
200/266 MHz
ZCLK (66MHz)
HCLK+/- (100/133 MHz)
48 MHz
LPC BUS
IDE Channels
66 MHz
14.318 MHz
33 MHz
IT8712
24 MHz
33 MHz
DDR
BIOS
Game Port
Floppy
LPT Port
PS/2
KB/Mouse
COM
Ports
(*)
GA-8I845G
- 7 -
- 8 -
1-1
1.
2.
3. (CPU RAM)
4.
5.
1.
2.
3.
4.
5.
6.
7.
8.
- 9 -
1-2
Intel® Pentium® 4 Socket 478
533/400MHz FSB
L2 CPU
3 DDR DIMM 2GB
2.5V DDR DIMM
DDR266 /200 DIMM
5 PCI
1 AGP
IDE 2 IDE (UDMA 33/ATA 66/ATA 100) 4 IDE
1 2
1 Normal/EPP/ECP
1 VGA 1 (COMA) COMB
6 USB 2.0/1.1 ( x 2 x 4- )
1
1 PS/2
1 PS/2
(*) RTL8100C (10/100 Mbit)
1 RJ 45
Intel® 845G
CODEC (C-Media 9761A)
; ;
2/4/6
SPDIF /
CD /Aux_In/Game Port
I/O IT8712
CPU
CPU /
CPU
CPU /
BIOS AWARD BIOS
Q-Flash
@BIOS
EasyTune
BIOS (CPU/AGP/PCI/DDR)
ATX 29.5 x 21.0
®
845G
®
ICH4
(*)
GA-8I845G
GA-8I845G(-C) - 10 -
1-3
1-3-1
(CPU)
1.
2.
3.
4.
5.
HT
(Hyper-Threading Technology)
- HT Intel Pentium 4
- HT
- BIOS BIOS HT
- HT
1.
65
90
" "
3.
65
- 11 -
1
2.
90
4.
( )
,
1-3-2
(CPU)
1. Intel
2. CPU
( CPU CPU
CPU
)
3. CPU
CPU FAN (
)
1.
CPU
;
2.
CPU
"CPU_FAN"
GA-8I845G(-C) - 12 -
1-4
1.
2.
3.
DDR BIOS
DDR
1.
2.
- 13 -
1-5
1.
2. ( )
3.
4.
5.
6.
7. BIOS
8.
AGP
/
GA-8I845G(-C) - 14 -
AGP
1-6
PS/2 PS/2
(*)
PS/2 ( ) ( )
A
( )
(*)
)
(*
10/100Mbps
(USB)
USB / USB USB USB
USB
2-/4-/6-
GA-8I845G
- 15 -
USB
1-7
3
2
1
12
9
11
10
13
5
17
4
18
6
15
16
14
1) ATX_12V
2) ATX (Power Connector)
3) CPU_FAN
4) SYS_FAN
5) FDD
6) IDE1/IDE2
7) PWR_LED
8) F_PANEL
9) F_AUDIO
GA-8I845G(-C) - 16 -
7
8
10) CD_IN
11) AUX_IN
12) SUR_CEN
13) SPDIF_IO
14) F_USB1 / F_USB2
15) COMB
16) CI
17) CLR_CMOS
18) BAT
1/2) ATX_12V/ATX ( )
ATX_12V CPU ATX_12V
!
)
( 300
4
3
11 1
20 10
2
1
1
2
3 +12V
4 +12V
1 3.3V
2 3.3V
3
4 +5V
5
6 +5V
7
8 Power Good
9 5V SB (stand by +5V)
10 +12V
11 3.3V
12 -12V
13
14 PS_ON(soft on/off)
15
16
17
18 -5V
19 +5V
20 +5V
- 17 -
3/4) CPU_FAN / SYS_FAN ( )
+12V 3-pin
(GND)
!
CPU
CPU_FAN
SYS_FAN
5) FDD ( )
360KB 720KB 1.2MB 1.44MB 2.88MB
+12V
1
1
2 +12V
3
1
GA-8I845G(-C) - 18 -
34
2
33
1
6) IDE1/IDE2 (IDE )
IDE IDE IDE IDE
IDE ( ) IDE
Master Slave ( IDE )
39
IDE2
IDE1
40
7) PWR_LED
PWR_LED ON OFF Power LED Suspend
1
1 MPD+
2 MPD-
3 MPD-
1
2
- 19 -
8) F_PANEL ( )
Message LED/
Power/
Sleep LED
2
1
HD (IDE Hard Disk Active LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
SPEAK (Speaker Connector) Pin 1:
Pin 2- Pin 3:
Pin 4: Data(-)
RES (Reset Switch) Open: Normal
Close: Reset Hardware System
PW (Power Switch) Open: Normal :
Close: Power On/Off : /
MSG(Message LED/Power/Sleep LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
NC
Speaker Connector
Power
Switch
PW+
MSG+
PW-
SPEAK+
MSG-
HD-
RES+
NC
HD+
RES-
Reset Switch
IDE Hard Disk Active LED
SPEAK-
20
19
GA-8I845G(-C) - 20 -
9) F_AUDIO ( )
Pin5-6 Pin9-10 Jumper
10) CD_IN ( )
CD-ROM DVD-ROM CD
1 MIC
2
10
9
2
1
3 MIC_BIAS
4
5 Front Audio(R)
6 Rear Audio (R)/ Return R
7
8
9 Front Audio (L)
10 Rear Audio (L)/ Return L
- 21 -
1
1 CD-L
2
3
4 CD-R
11) AUX_IN ( )
: MPEG
12) SUR_CEN ( )
1
1
2
3
4
SUR_CEN
1 SUR OUTL
6
5
1
2
2 SUR OUTR
3
4
5 CENTER_OUT
6 BASS_OUT
GA-8I845G(-C) - 22 -
13) SPDIF_IO (SPDIF In/Out)
Sony/Philip Digital Interface Format /
SPDIF IN & SPDIF OUT
SPDIF IN
(SPDIF Out)
SPDIF AC-3 AC-3
(SPDIF In)
SPDIF , ;
SPDIF
2
6
1
5
14) F_ USB1 / F_USB2 ( )
USB
USB
1
2
3 SPDIF
4 SPDIFI
5
6
- 23 -
1
2
10
9
1
2
3 USB DX-
4 USB Dy-
5 USB DX+
6 USB Dy+
7
8
9
10
15) COMB ( B)
16) CI ( )
10
2
19
1 NDCD B-
2 NSIN B
3 NSOUT B
4 NDTR B-
5
6 NDSR B-
7 NRTS B-
8 NCTS B-
9 NRI B-
10
GA-8I845G(-C) - 24 -
1
1
2
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