Gigabyte Ga7n400 Manual

							Introduction
English
- 7 -
On-Board SATA RAID ()
Onboard Silicon Image SiI3112

Supports Disk striping (RAID0) or DISK Mirroring (RAID1)

Supports UDMA up to 150 MB/sec

AIL UDMA and PIO Modes

Up to 2 SATA Device

ACPI and ATA/ATAPI6

Supports hot plug function
On-Board IEEE1394 ()
Built-in TI TSB43AB23
PS/2 Connector
PS/2 Keyboard interface and PS/2 Mouse interface
BIOS
Licensed AWARD  BIOS

Supports Dual BIOS 
()

Supports Face Wizard

Supports Q-Flash
Additional Features
PS/2 Keyboard power on by password

PS/2 Mouse power on

External Modem wake up

STR(Suspend-To-RAM)

AC Recovery

Poly fuse for keyboard over-current protection

USB KB/Mouse wake up from S3

Supports Thermal Shutdown function

Supports @BIOS
Overclocking
Over Voltage (CPU/DDR/AGP) by BIOS

Over Clock (CPU/DDR/AGP/PCI) by BIOS
Please set the CPU host frequency in accordance with your processors specifications.
We dont recommend you to set the system bus frequency over the CPUs specification because
these specific bus frequencies are not the standard specifications for CPU, chipset and most of the
peripherals. Whether your system can run under these specific bus frequencies properly will
depend on your hardware configurations, including CPU, Chipsets, SDRAM, Cards…etc.

 For GA-7N400 Pro2 only.   For GA-7N400 only.  For GA-7N400-L only.
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							- 8 - N400 Pro2 / N400 Series Motherboard
English
CD_IN
GA-7N400 Pro2
KB_MS
COM A
LPT USB
LAN
ATX_12V
SOCKET ACPU_FAN
IDE1 IDE2 DDR2COM B
PWR_LED BAT PCI1
PCI2
PCI3
F_USB
IT8712F
MAIN
BIOS
CODEC
nVIDIA®
nForce™ 2
MCP
DDR3
PCI4
PCI5
GAME
F_AUDIO
AUX_IN
IRIDE3
GigaRAID
IT8212BACKUPBIOSSiI3112
SATA0DDR4
RAM_LED
ATX
SYS_FAN
CINB_FAN
IDE4DDR1
SPDIF_IOSUR_CEN2X_DET AUDIO
F_PANEL
F1_1394
Dual Channel DDR
INFO_LINKAGP nVIDIA
® nForce™ 2
Ultra 400
USB
FDD
CLK_SW
SATA1
RTL8110S
TSB43AB23
F2_1394 CLK_RATIO
PWR_FAN
GA-7N400 Pro2 Motherboard Layout
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							Introduction
English
- 9 -
GA-7N400 Motherboard Layout
CD_IN
GA-7N400
KB_MS
COM A
LPT USB
ATX_12V
SOCKET ACPU_FAN
IDE1 IDE2 DDR2COM B
PWR_LED BAT PCI1
PCI2
PCI3
F_USB
IT8712F
MAIN
BIOS
CODEC
nVIDIA®
nForce™ 2
MCP
DDR3
PCI4
PCI5
GAME
F_AUDIO
AUX_IN
IR
DDR4
RAM_LED
ATXSYS_FAN
CIDDR1
SPDIF_IOSUR_CEN2X_DET AUDIO
F_PANEL
Dual Channel DDR
INFO_LINKAGP nVIDIA
® nForce™ 2
Ultra 400
USB
FDD
CLK_SWCLK_RATIO
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							- 10 - N400 Pro2 / N400 Series Motherboard
English
CD_IN
GA-7N400-L
KB_MS
COM A
LPT USB
LAN
ATX_12V
SOCKET ACPU_FAN
IDE1 IDE2 DDR2COM B
PWR_LED BAT PCI1
PCI2
PCI3
F_USB
IT8712F
MAIN
BIOS
CODEC
nVIDIA®
nForce™ 2
MCP
DDR3
PCI4
PCI5
GAME
F_AUDIO
AUX_IN
IR
DDR4
RAM_LED
ATXSYS_FAN
CIDDR1
SPDIF_IOSUR_CEN2X_DET AUDIO
F_PANEL
Dual Channel DDR
INFO_LINKAGP nVIDIA
® nForce™ 2
Ultra 400
USB
FDD
CLK_SW
RTL8100CCLK_RATIO
GA-7N400-L Motherboard Layout
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							Introduction
English
- 11 -
nVIDIA®
nForce™ 2
 Ultra 400
CPUCLK+/- (100/133/166/200MHz)
System Bus
400/333/266/200MHz
12 MHz
14.318 MHz AGP
4X/8X
AGPCLK
(66MHz)
5 PCI
PCICLK
(33MHz)
AC97 Link
MIC
LINE-IN
LINE-OUT
AMD-K7™
CPU
AC97
CODECIDE3
 SiI3112

2 Serial
ATA

IDE4
 GigaRAID
IT8212

400/333/266/200MHz
DDR RAM
nVIDIA
®
nForce™ 2
MCP
RJ45
RTL8110S

RTL8100C
LPC BUS
6 USB
Ports
ATA33/66/100/133
IDE Channels
IT8712
24 MHz
33 MHz
Game Port
Floppy
LPT Port
PS/2 KB/Mouse
2 COM Ports
BIOS
3 IEEE1394

 TI 

TSB43AB23
IR
Block Diagram - GA-7N400 Pro2 / GA-7N400 / GA-7N400-L

 For GA-7N400 Pro2 only.   For GA-7N400 only.  For GA-7N400-L only.
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							- 12 - N400 Pro2 / N400 Series Motherboard
English
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							Hardware Installation Process
English
- 13 -
To set up your computer, you must complete the following steps:
Step 1- Set system jumper (CLK_SW)& (CLK_RATIO)
Step 2- Install the Central Processing Unit (CPU)
Step 3- Install memory modules
Step 4- Install expansion cards
Step 5- Connect ribbon cables, cabinet wires, and power supply
Chapter 2  Hardware Installation Process
Step 3
Step 4
Step 5
Step 2
Step 5
Congratulations! You have accomplished the hardware installation!
Turn on the power supply or connect the power cable to the power outlet. Continue with the
BIOS/software installation.
Step 1
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							- 14 - N400 Pro2 / N400 Series Motherboard
English
Step 1: Set System Jumper (CLK_SW) & (CLK_RATIO)
The clock ratio can be switched by CLK_RATIO and refer to  below table.The system bus frequency can
be switched at 100MHz and auto by adjusting CLK_SW.
Default Setting :
Auto (X X X X X X)

Note: In order to BIOS can auto detecting  when
your CPU mutiplier over 18x, please adjust mutiplier
swich in CLK_RATIO to AUTO.
RATIO 1 2 3 4 5 6
AUTO X X X X X X
(Default)
5x OOX O OO
5.5x X O X O O O
6x O X X O O O
6.5x X X X O O O
7x OOO X OO
7.5x X O O X O O
8x O X O X O O
8.5x X X O X O O
9x OOX X OO
9.5x X O X X O O
10x O X X X O O
10.5x X X X X O O
11x OOO O OO
11.5x X O O O O O
12x O X O O O O
12.5x X X O O O O
13x O O X O X O
13.5x X O X O X O
14x O X X O X O
15x O O O X X O
16x O X O X X O
16.5x X X O X X O
17x O O X X X O
18x X O X X X OO: ON / X :OFF
CLK_RATIO
You must set CLK_SW to 100MHz
when you used FSB 200MHz CPU.
  CLK_SW
O N AUTO
OFF 100MHz
 AUTO : Supports FSB 400/333/266 MHz CPU
100MHz : Fix FSB 200MHz CPU
CLK_SW Default  Setting : OFF
OFFON
5
ON 2 3 4 CLK_RATIO6
1
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							Hardware Installation Process
English
- 15 -
Before installing the processor, adhere to the following warning:
1. Please make sure the CPU type is supported by the motherboard.
2. If you do not match the CPU socket Pin 1 and CPU cut edge well, it will
cause improper installation. Please change the insert orientation.
CPU Top View CPU Bottom View
Socket  Actuation Lever
1 Pull up the CPU socket lever and
up to 90-degree angle.
Pin1 indicator
2. Locate Pin 1 in the socket and look
for a (golden) cut edge on the CPU
upper corner. Then insert the CPU
into the socket.
Step 2: Install the Central Processing Unit (CPU)
Step 2-1: CPU Installation
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							- 16 - N400 Pro2 / N400 Series Motherboard
English
Step 2-2: CPU Cooling Fan Installation
Before installing the CPU cooling fan, adhere to the following warning:
1. Please use AMD approved cooling fan.
2. We recommend you to apply the thermal tape to provide better heat
conduction between your CPU and cooling fan.
3. Make sure the CPU fan power cable is plugged in to the CPU fan
connector, this completes the installation.
Please refer to CPU cooling fan users manual for more detail
installation procedure.
3. Fasten the cooling fan supporting-
base onto the CPU socket on the
motherboard.2. Use qualified fan approved by AMD.
4. Make sure the CPU fan is plugged
to the CPU fan connector, than
install complete. 1. Press down the CPU socket lever
and finish CPU installation.
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