Biostar P43C-A7 BIOS MANUAL

P43B-A7 & P43C-A 7 BIOS Man ual

i

B IOS Set up.................................................................................................1

1 Main Menu...............................................................................................3

2 Adv anc ed Menu.......................................................................................8

3 PCIPnP Menu ........................................................................................19

4 Boot Menu..............................................................................................23

5 C hipset Me nu.........................................................................................2 6

6 Performance Menu...............................................................................30

7 Exit Menu...............................................................................................33

P43B-A7 & P43C-A 7 BIOS Man ual

BIOS Setup

Introduction

The purpose of this manual is to describe the settings in the AMI BIOS Setup
program on this m otherboard. The Setup program allows users to modify the basic

system configuration and save these settings to CMOS RAM. T he power of CMOS
RAM is supplied by a battery so that it retains the Setup information when the power
is turned off.

Basic Input-Output System (BIOS) determines what a computer can do without
accessing programs from a disk. T his system controls most of the input and output

devices such as keyboard, mouse, serial ports and disk drives. BIOS activates at the
fi rst stag e o f the booting proc ess, loading and executing the operating system. Some
additional features, such as virus and password protection or chipset fine-tuning
options are also included in BIOS .
T he rest of this m anual will to guide you through the options and settings in BIOS
Setup.

Plug and Pl ay Support

T his AMI BIOS supports the P lug and Play Version 1.0A specific ation.

EPA Green PC Support

T his AMI BIOS supports Version 1. 03 of the EPA Green PC specification.

ACPI Support

AMI ACPI BIOS support Version 1.0/2.0 of Advanced Configuration and Power
interface specifi cation (ACPI). It provides ASL code for pow er manag ement and

device con figuration capabilities as defined in the ACPI specification, developed by
Microso ft, Intel and T oshiba.

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P43B-A7 & P43C-A 7 BIOS Man ual

PCI Bus Support

T his AMI BIOS also supports Version 2.3 of the Intel PCI (Peripheral Component
Int erconn ect) local b us speci ficatio n .

DRAM Support

DDR2 S DRAM (Double Data Rate II S ynchronous DR AM) is supported.

Su ppor t e d CP Us

T his AMI BIOS supports the Intel C P U.

Usin g Setup

When starting up the computer, press

<Del> during the Power-On Self-Test
(POST) to enter the BIOS setup utility.

In the BIOS setup utility, you will see
General Help description at the top right

corner, and this is providing a brief
description of the selected item.
Navigation Keys for that particular menu

are at t he bottom right corner, and you can
us e thes e keys to select item an d ch ange
the settings.

Notice

z T he default BIOS settings apply for most conditions to ensure optimum performance

of the motherboard. If the system becomes unstable after changing any settings,
please load the default settings to ensure system’s compatibility and stability. Use

Load Setup Default under the Exit Menu.

z For better system per form ance, the BIOS firmware is being continuously updated.

T he BIOS information described in this manual is for your re fer ence only. The actual
BIOS information and settings on board may be slightly differ ent from t his manual.

z T he content of this manual is subject to be chang ed without notice. W e will not be

responsible for any mi stakes found in this user’ s manual and any system damage that
may be caused by wrong-settings.

General Help

Navigation Keys

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P43B-A7 & P43C-A 7 BIOS Man ual

1 Main Menu

Once you enter AMI BIOS Setup Utility, the Main Menu will appear on the screen
providing an overview of the basic system information.

Main Advanced PCIPnP Boot Chipset Performance

System Overview
AMI BIOS

Version :01.01.01
Build Date:01/01/09

System Memory

Size :

System Time [ :00:00]00

System Date [Thu 01/01/2009]
Floppy A

> SATA/IDE Configuration

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

AM I BIO S

BIOS SETUP UTILITY

Exit

Use [ENTER], [TA B]
or [SHIFT-TAB] to
select a field.

Use [+] or [-] to
configure system Time.

Select Screen
Select Item

Change Field

+-

Select Field

Tab

General Help

F1

Save and Exit

F10

Exit

ESC

Shows sys tem information including BIOS version, built date, etc.

System Memory

Shows sys tem memory size, VGA shard m emory will be excluded..

System Time

Set the system internal clock.

System Date

Set the system date. Note that the ‘Day’ automatically changes when you set the
date.

Floppy A

Select the type of floppy disk drive installed in your system.
Options: 360K, 5 1/4 i n / 1.2M, 5 1/4 in / 720K, 3 1/2 in / 1.44M, 3 1/ 2 in /

2.88M, 3 1/2 in / Disabled

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P43B-A7 & P43C-A 7 BIOS Man ual

SA T A/IDE Configuratio n

Th e BIOS wi ll automat i cal l y d etect t h e presen ce o f SAT A/ID E d evices . There i s a
su b-menu fo r each SAT A/IDE device. Select a device an d press < Ent er> to enter

the sub-menu of detailed options.

Main

IDE/SATA Confuguration

SATA#1 Configuration [Compatible]

Configure SATA#1 as [IDE]
Jmicron 36x ATA Controller [Enabled]

> SATA1 Device
> SATA2 Device
> SATA3 Device
> SATA4 Device
> IDE Channel 1 Master

IDE Channel 1

> Slave
> AHCI Configuration

Hard Disk Write Protect [Disabled]
IDE Detect Time Out (Sec) [35]

BIOS SETUP UTILITY

Options

Disabled
Compatible

Enhanced

Select Screen
Select Item

Go to Sub Screen

Enter

General Help

F1

Save and Exit

F10

Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

SATA# 1 Configuration

T his i tem allows you to control the onboard SAT A controller.
Options: Compatible (Default) / Disabled / Enhanced

Confi gur e SATA#1 as

T his i tem allows you to choose the SAT A operati on mode.
Opt i ons : IDE (De fault) / A HCI

JMicron 36x ATA Controll er

T his i tem allows you to control the onboard IDE cont roller.
Options: Enabled (Default) / Disabled

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P43B-A7 & P43C-A 7 BIOS Man ual

SATA 1/2/3/4 Device; IDE Channel 1 Master/Slave

Main

SATA 1 Device

Device :

Type [Au to]

LBA/Large Mode [Au to]
Block (Multi-Sector Transfer)[Au to]

PIO Mode [Au to]
DMA Mode [Au to]
S.M.A.R.T [Au to]

32Bit Data Transfer [En abled]

vxx.xx (C)Copyright 1 985-200x, American Me g atrends, Inc.

BIOS SETUP UTILITY

Select the type
of device connected

to the system.

Select Screen
Select Item
Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

The BIOS detects the information and values of resp ective devices, and these
information and values are shown below t o the nam e of the sub-menu.

Type

Select the type of the IDE/S ATA drive.
Options: Auto (Default) / CDROM / AR MD / Not Installed

LBA/Large Mode

Enable or disabl e the LB A mode.
Options: Auto (Default) / Disabled

Block (Multi-Sector Transfer)

En able o r d i s ab l e m u l ti- sector t ran s fer.
Options: Auto (Default) / Disabled

PIO Mode

Select the PIO mode.
Options: Auto (Default) / 0 / 1 / 2 / 3 / 4

DMA Mode

Select the DMA mode.
Opti ons: Auto (De fault ) / S WDMA0 ~ 2 / MW DM A0 ~ 2 / UDMA0 ~ 5

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P43B-A7 & P43C-A 7 BIOS Man ual

S.M.A.R.T

Set the Smart Moni toring, Analysis, and Reporting Technology.
Options: Auto (Default) / Disabled / Enabled

32Bit Data Transfer

Enable or disabl e 32-bit data transfer.
Options: Enabled (Default) / Disabled

AHCI Configuration

Main

AHCI Settings

AHCI BIOS Support [Enabled]

AHCI CD\DVD Boot Time out [35]
> AHCI Port0

> AHCI Port1
> AHCI Port2
> AHCI Port3

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

BIOS SETUP UTILITY

Enables for supporting

Select Screen
Select Item

Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

AHC I BIOS S upport

T his B IOS feature controls the AHCI function of the SAT A controller.
Options: Enabled (Default) / Disabled

AHC I CD / D VD Boo t T ime O ut

T his B IOS feature allows you to s et the AHCI C D/DVD boot ti m e out.
Options: 35 (Default) / 0 / 5 / 10 / 15 / 20 / 25 / 30

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P43B-A7 & P43C-A 7 BIOS Man ual

AH CI Port 0/Port1/ Port2/Port

Main

AHCI Port0

Device :

SATA Port0 [Auto]

S.M.A.R.T. [Enabl ed]

vxx.xx (C)Copyright 1 985-200x, American Me g atrends, Inc.

BIOS SETUP UTILITY

D evice

This area shows the detected connected device.

SATA Port0/ 1/2/3

This item allows you to select the connected device type.
Options: Auto (Default)

S.M.A.R.T.

This item allows you to control the device S. M. A.R.T function.
Options: Enabled (Default) / Disabled

Select the type
of device connected

to the system.

Select Screen
Select Item
Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

Har d Disk Wri te Protect

Disable or enable device write protection. This will be effective only if the device
is accessed through BIOS.
Options: Disabled (De fault) / Enabled

IDE Detect Time Out (Sec)

Select the time out value for detecting IDE/S AT A devices.
Options: 35 (Default) / 30 / 25 / 20 / 15 / 10 / 5 / 0

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P43B-A7 & P43C-A 7 BIOS Man ual

2 Advanced Menu

T he Advanced Menu allows you to configure the settings of CP U, Super I/O, P ower
Management, and other system devices.

Notice

z Beware of that setting inappropriate values in items of this menu may cause

system to m alfunction.

Main Advanced PCIPnP Boot Chipset Perfo rmance

WARNING: Setting wrong values in below sections
may cause system to malfunction.

> CPU Configuration

> SuperIO Configuration
> Hardware Health Configuration

> Smart Fan Configuration
> Power Configuration

> USB Configuration

BIOS SETUP UTILITY

Configure CPU.Advanced Settings

Exit

Select Screen
Select Item

Enter

Go to Sub Screen

F1

General Help

F10

Save and Exit
Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

CPU Configuration

T his item shows the CPU information that the BIOS automatically detects.

Advanced

Configure advanced CPU settings

Module Version:3F.12
Manufacturer:Intel

Frequency :
FSB Speed :
Cache L1 :

Cache L2 :
Ratio Status:
Ratio Actual Value:

Hardware Prefetcher [Enabled]
Adjacent Cache Line Prefetch [Enabled]
Max CPUID Value Limit [Disabled]
Intel(R) Virtualization Tech [Enabled]

Execute-Disable Bit Capability[Enabled]
PECI [Enbled]
Core Multi-Processing [Enabled]
Intel(R) SpeedStep(tm) tech [Enabled]

vxx.xx (C)Copyright 1985-200x, American Megatre nds, Inc.

BIOS SETUP UTILITY

8

For UP platforms ,
leave it enabled.
For DP/MP server s,
it may use to tune

performance to the
specific application.

Select Screen
Select Item
Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

P43B-A7 & P43C-A 7 BIOS Man ual

Hardware Prefetcher

Th e proces so r has a h ardware pre fet cher t h at au t omat i cal l y anal y zes it s req u iremen t s
and pre fet ch es dat a and in s t ru ct ion s fro m t h e m emory i n t o th e L ev el 2 cache th at a r e
likely to be required in the near future. This reduces the latency associated with

m emory read s.
Options: Enabled (Default) / Disabled

Adj acent Cache Line Prefetch

The processor has a hardware adjacent cache line prefetch mechanism that
aut o mat i cal l y fet ch es an ext ra 6 4-byt e cach e l i n e when ever the p ro cesso r req uest s for
a 64-byte cache line. This reduces cache latency by making the next cache line
immediately available if the processor requires it as well.

Options: Enabled (Default) / Disabled

M ax CPUI D Va l ue Lim i t

When the computer is booted up, the operating system executes the CPUID
instruction to identify the processor and its capabilities. Befo re it can do so, it must

first query the processor to find out the highest input value CPUID recognizes. T his
determines the kind of basic information CP UID can provide the operating system.

Options: Disabled (De fault) / Enabled

Inte l(R) Virtua liza tion Te c h

Virtualization Technology can virtually separate your system resou rce into several
parts, thus enhance the performance when running virtual machines or multi

interfa ce systems.
Options: Enabled (Default) / Disabled

Execute-Disable Bit Capability

T his i tem allows you to confi gure the Execute Disabled Bit function, which protects
your s ystem from buffer over flow attacks.
Options: Enabled (Default) / Disabled

PECI

T his item allows you to control the PECI function for the processor which supports
Platform Environment Cont rol Int erface for better therm al management.
Options: Disabled (De fault) / Enabled

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P43B-A7 & P43C-A 7 BIOS Man ual

Core Multi-Proce ssing

T his item allows multi-processing fun ction for multi-cor e processors.
Options: Enabled (Default) / Disabled

In tel(R) S p eedSte p (tm) Tech

This item allows you to enable SpeedStep technology for better power saving.
SpeedStep is a technology built into some Intel processors that allows the clock

sp eed of t h e proces s o r to b e dy nam i cal l y ch an ged by s o ft w are.
Options: Enabled (Default) / Disabled

S uperI O Co nf i g urat i o n

Advanced

Configure ITE8718 Super IO Chipset

Onboard Floppy Controller [Enabled]

Serial Port1 Address [3F8/IRQ4]
Parallel Port Address [378]

Parallel Port Mode [Normal]
Parallel Port IRQ [IRQ7]

Keyboard PowerOn [Disabled]
Mouse PowerOn [Disabled]
Restore on AC Power Loss [Power Off]

BIOS SETUP UTILITY

Allows BIOS to Enable
or Disable Floppy

Controller

Select Screen
Select Item

Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

Onboard Floppy Controlle r

Select enabled if your system has a floppy disk controller (FDC) installed on the
system board and you wish to use it. If you inst alled another FDC or the system uses

no fl oppy drive, select disabled in this field.
Options: Enabled (Default) / Disabled

Serial Port1 Address

Select an address and corr esponding interrupt for the first and second seri al ports.
Options: 3F8/IR Q4 (Default ) / 2F8/IRQ3 / 3E8/IRQ4 / 2E8/IRQ3 / Auto / Disabled

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P43B-A7 & P43C-A 7 BIOS Man ual

Parallel Port Address

Th i s it em al l ows y o u to det erm in e access onboard parallel port controller with which
I/O Address.
Options: 378 (Default ) / 278 / 3B C / Di sabled

Parallel Port Mode

T his i tem allows you to determine how the parall el port should function.
Options: Normal (Default) Using Parallel port as S tandard Printer Port.

EPP Using Parallel Port as Enhanced Parallel Port.
ECP Using Parallel port as Extended Capabilities Port.
ECP + EPP Using Parallel port as ECP & EPP mode.

Parallel Port IRQ

T his i tem allows you to select the IR Q for the onboard paral lel port.
Options: IRQ7 (Default) / IRQ5 / Disabled

Keyboard PowerOn

T his i tem allows you to control the keyboard power on functi on.
Options: Disabled (De fault) / S pecific Key / Stroke Key / Any Key

Specific Key Enter

T his i tem will show only when Keyboard P owerOn is set “Specific Key.”

Stroke Keys Selected

T his i tem will show only when Keyboard P owerOn is set “Stroke Key.”
Options: Ctrl+F1 (Default) / Wake Key / Power Key / Ctrl+F2 / Ctrl+F3 /

Mouse PowerOn

C t rl +F 4 / Ctrl +F 5 / Ct rl +F 6

T his i tem allows you to control the mouse power on function.
Options: Disabled (De fault) / Enabled

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P43B-A7 & P43C-A 7 BIOS Man ual

Restor e on AC Power Loss

T his setti ng specifies how your s ystem should behave a fte r a power fail or interrupts
occurs. By choosing Disabled will leave the computer in the power off state.
Choosing Enabled will restore the system to the status before power failure or

interrupt occurs.
Options: Power O ff (Default) / Power ON / Last S tate

Hardware Health Configuration

T his i tem shows the system t emperature, fan speed, and voltage information.

Advanced

Hardware Health Configuration

H/W Health Function [Enabled]

Shutdown Temperature [Disabled]

CPU Temperature
System Temperature

CPU Fan
System1 Fan

CPU Vcore
Chipset Voltage
+3.30V

+12.0V
FSB Voltage
Memory

Voltage

BIOS SETUP UTILITY

Enables Hardware
Health Monitoring

Device.

Select Screen
Select Item

Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

H/W Health Functio n

If with a monitoring system, the system will show PC health stat us during P OST stage.
Options: Enabled (Default) / Disabled

Shutdown Tempe r ature

T his item allows you to set up the CPU shutdown Temperature. This item is only
effective under W indows 98 ACPI mode.
Options: Disabled (De fault) / 60 /140 / 65 /149 / ℃℉℃℉70 /158℃℉ / 7 5 /℃ 167 ℉

/ 80 /℃ 176 / 85 /℉℃185 / 90 /℉℃194℉

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P43B-A7 & P43C-A 7 BIOS Man ual

Smart Fan Configuration

Advanced

Smart Fan Configuration

CPU Smart Fan [Dis abled]

Smart Fan Calibration
Control Mode
Fan Ctrl OFF( C)
Fan Ctrl On(C)
Fan Ctrl Start value
Fan Ctrl Sensitive

o

o

BIOS SETUP UTILITY

When you choice [Auto]
,[3Pin] or [4Pin],

please run the
calibration to define
the Fan parameters for
Smart Fan control

Select Screen
Select Item
Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Me gatrends, Inc.

CPU S m art Fan

This item allows you to control the CPU Smar t Fa n f unc tion.
Options: Disabled (default) / Auto

Sm art Fan Ca l i bration

Choose this item and then the BIOS will auto test and detect the CPU/System fan
functions and show CPU/S ystem fan speed.

Contr ol Mode

T his i tem provides several oper ation modes of the fan.
Options: Quiet / Performan ce / Manual

Fan Ctrl OFF (℃)

If the CP U/System T emperature is lower than the set value, FAN will turn off.
Options: 0~127 (℃) (Interval: 1℃)

Fan Ctrl On(℃ )

CPU/System fan starts to work under smart fan function when arrive this set value.
Options: 0~127 (℃) (Interval: 1℃)

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P43B-A7 & P43C-A 7 BIOS Man ual

Fan Ctrl S tart Va l ue

When CPU/System temperature arrives to the set value, the CPU/System fan will
work under Smart Fan Function mode.
Options: 0~127 (Interval: 1)

Fan Ctrl Sensiti ve

Increasin g t h e valu e wil l rai s e t he sp eed of C P U / Sys t em fan.
Options: 1~127 (Interval: 1)

Power Configuration

Advanced

ACPI Settings

Suspend mode [S1(POS)]

ACPI Version Features [ACPI v1.0]
ACPI APIC support [Enabled]

AMI OEMB table [Enabled]
Headless mode [Disabled]

APIC ACPI SCI IRQ [Disabled]
USB Device Wakeup From S3/S4 [Disabled]

High Performance Event Timer [Disabled]
Resume On Ring [Disabled]

Resume On PME# [Disabled]
Resume On RTC Alarm [Disabled]

RTC Alarm Date(Days)
Time

RTC Alarm

BIOS SETUP UTILITY

Options

S1 (POS)
S3 (STR)

Auto

Select Screen
Select Item

+-

Change Option

F1

General Help

F10

Save and Exit
Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

Suspend m ode

T he item allows you to select the suspend t ype under the AC PI operating system .
Opt i ons : S 1 (PO S ) (Default ) P ower on Suspen d
S3 (STR) Suspend to RAM
Auto POS+STR

Repost Video on S3 Resume

T he item allows you to determine whether to invoke VGA BIOS post on S3/ST R
resum e.

Options: No (Default) / Yes

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P43B-A7 & P43C-A 7 BIOS Man ual

ACPI Version Features

Th e item al l o ws yo u to sel ect t he vers i o n of A C PI.
Options: ACP I v1.0 (Default) / ACP I v2.0 / ACPI v3. 0

ACPI AP I C support

This item is used to enable or disable the motherboard's APIC (Advan ced
Programmable Interrupt Controller). The APIC provides multiprocessor support,

more IRQs and faster interrupt handling.
Options: Enabled (Default) / Disabled

AMI OEMB table

Set this value to allow the ACP I BIOS to add a pointer to an OEMB table in the Root
Syst em Description Table (RSDT ) table.

Options: Enabled (Default) / Disabled

Headless mode

This is a server-specific feature. A headless server is one that operates without a
keyboard, monitor or mouse. To run in headless mode, both BIOS and operating

system (e.g. Windows Server 2003) must support headless operation.
Options: Disabled (De fault) / Enabled

APIC ACPI SCI IRQ

Options: Disabled (De fault) / Enabled

USB Device Wakeup from S3/S4

T his i tem allows you to enable or disabled t he USB resume from S 3/S 4 function.
Options: Disabled (De fault) / Enabled

High P erforma nce Ev ent Time r

T his i tem allows you to enable or disabled t he HPET.
Options: Disabled (De fault) / Enabled

HPET M emory Address

T his i tem allows you to set the mem ory address of HPET .
Options: FED00000h (Default) / FED01000h / FED02000h / F ED03000h

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P43B-A7 & P43C-A 7 BIOS Man ual

Resume On Rin g

T his i tem allows you control the wake on ring function.
Options: Disabled (De fault) / Enabled

Resume On P ME#

W hen you s elect Enabled, a PME signal from P CI card returns the system to F ull ON
state.

For this function to work, you may need a LAN add-on card which supports the
Wake on LAN function. Set the Wake on LAN (WOL) jumper on motherboard to
enab le if appl icabl e.

Options: Disabled (De fault) / Enabled

Resum e On RTC Alarm

When “ Enabled”, you can set the date and time at which the RTC (real-time clock)
alar m awaken s th e s y s tem from Su s pen d mod e.

Options: Disabled (De fault) / Enabled

RTC Alar m Date (D ays )

You can choose which date the syst em will boot up.

RTC Alarm Ti m e

You can choose the system boot up time, input hour, minute and second to specify.

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P43B-A7 & P43C-A 7 BIOS Man ual

USB Configuration

T his i tem shows the USB control ler and using USB device information.

Advanced

USB Configuration

Module Version - 2.24.3-13.4

USB Devices Enabled:

Legacy USB Support [Enabled]

USB 2.0 Controller Mode [HiSpeed]
BIOS EHCI Hand-Off [Enabled]

> USB Mass Storage Device Configuration

BIOS SETUP UTILITY

Options

Disabled
Enabled

Auto

Select Screen
Select Item

Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

Legacy USB Support

T his item determines if the BI OS should provide legacy support for USB devices
li ke the key board, mo use, and USB drive. T his is a useful feature when us ing su ch
USB devices with operating systems that do not natively support USB (e.g.

Microsoft DOS or Windows NT).
Options: Enabled (Default) / Disabled

USB 2.0 Controller Mode

T his i tem allows you to select the operation mode of t he USB 2.0 controller.
Options: HiSpeed (De fault) USB 2. 0-480Mbps
FullSpeed USB 1.1-12Mbps

BIO S EHCI Hand-Off

This item allows you to enable support for operating systems without an EHCI
hand-o ff featur e.

Options: Enabled (Default) / Disabled

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P43B-A7 & P43C-A 7 BIOS Man ual

US B Mass Sto rag e De vice Co nfigurat io n

Advanced

USB Mass Storage Device Configuration

USB Mass Storage Reset Delay [20 Sec]

Device #

Emulation Type [Auto]

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

BIOS SETUP UTILITY

Number of seconds
POST waits for the

USB mass storage
device after start

unit command.

Select Screen
Select Item

Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

USB Mass Storage Reset Delay

T his i tem allows you to set the reset delay for USB mass storage device.
Op t i ons : 20 Sec (D efau l t ) / 1 0 Sec / 3 0 S ec / 40 S ec

E m ula tio n T ype

T his i tem allows you to select the emul ation type of the USB mass st orage devi ce.
Options: Auto (Default) / Floppy / Forced F DD / Hard Disk / CDROM

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P43B-A7 & P43C-A 7 BIOS Man ual

3 PCIPnP Menu

T his section describes configuring the PCI bus system. PCI, or Personal Computer
Interconnect, is a system which allows I/O devices to operate at speeds nearing the

speed of the CPU itself uses when communicating with its own special components.

Notice

z Beware of that setting inappropriate values in items of this menu may cause

system to m alfunction.

Main Advanced PCIPnP Boot Chips et Performance

Advanced PCI/PnP Settings
WARNING: Setting wrong values in below sec tions

may cause system to malfunction.

Clear NVRAM [No]

Plug & Play O/S [No]
PCI Latency Timer [64]

Allocate IRQ to PCI VGA [Yes]
Palette Snooping [Disabled]
PCI IDE BusMaster [Enabled]
OffBoard PCI/ISA IDE Card [Auto]

> PCI Resource
> PCI Express Configuration

BIOS SETUP UTILITY

Exit

Clear NVRAM during
System Boot.

Select Screen
Select Item

Change Option

+-

General Help

F1

Save and Exit

F10
ESC

Exit

vxx.xx (C)Copyright 1985-200x, American Megatre nds, Inc.

Clear NVR AM

T his i tem allows you to clear the data in t he NVRAM (CMOS ) by selecting “Yes”.
Options: No (Default) / Yes

Plug & P lay OS

When set to YES, BIOS will only initialize the PnP cards used for the boot sequen ce
(VGA, IDE, SCSI). The rest of the cards will be initialized by the PnP operating

system like Window™ 95. When set to NO, BIOS will initialize all the PnP cards.
For non-PnP operating systems (DOS, Netware™), this option must set to NO.

Options: No (Default) / Yes

19

P43B-A7 & P43C-A 7 BIOS Man ual

PCI Latency Tim er

T his i tem controls how long a PCI device can hold the P CI bus be fore another takes
over. The longer the latency, the longer the PCI device can retain control of the bus

before handing it over to another PCI device.
Options: 64 (Default) / 32 / 96 / 128 / 160 / 192 / 224 / 248

Allocate IRQ to P CI VGA

T his i tem allows BIOS t o choose a IRQ to assign for the PCI VGA card.
Opti ons: Yes (Default) / No

Palette Snooping

Som e old graphic control lers need to “snoop” on the VGA palette and then map it to
their dis play as a way to provide boot information and VGA compatibility. This ite m

allows such snoopi ng to take place.
Options: Disabled (De fault) / Enabled

PCI IDE Bu sMaster

T his i tem is a toggle for the built -in driver that allows the onbo ard ID E controller to
perform D M A (Direct Mem o ry A cc es s ) tran sfer s.

Options: Enabled (Default) / Disabled

OffBoard PCI/ISA IDE Card

T his i tem is for any other non-onboard PCI/ISA IDE control ler adapter.
Options: Auto (Default) / PCI Slot1~6

OffB oard PCI IDE Primary /Seocndary IRQ

Disabl ed: Use if this channel on card does not need an IRQ. INTx: Use these settings
to assign an IRQ to the IntPin used by this channel. Hardwired: T he card hardwires a
fixed INTx into IntPin.
Options: Disabled (Default) / INTA / INTB /INTC / INTD / Hardwired

20

P43B-A7 & P43C-A 7 BIOS Man ual

PCI Resource

PCIPnP

PCI Resource

IRQ3 [Available]

IRQ4 [Available]
IRQ5 [Available]

IRQ7 [Available]
IRQ9 [Available]
IRQ10 [Available]

IRQ11 [Available]
IRQ14 [Available]
IRQ15 [Available]

DMA Channel 0 [Available]
DMA Channel 1 [Available]
DMA Channel 3 [Available]

DMA Channel 5 [Available]
DMA Channel 6 [Available]
DMA Channel 7 [Available]

Reserved Memory Size [Disabled]

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

IRQ3/4/5/7/9/1 0/11/14/15

T hese items will allow you to assign each system interrupt a type, depending on the
type of device using the interrupt. T he option “Available” means the IRQ is going

to assign automatically.
Options: Available (Default) / Reserved

BIOS SETUP UTILITY

Available: Specified
IRQ is available to be

used by PCI/PnP
devices.

Reserved: Specified
IRQ is reserved for
use by Legacy ISA

devices.

Select Screen
Select Item

+-

Change Option

F1

General Help

F10

Save and Exit

ESC

Exit

DMA Channel 0/1/3/5/6/7

T hese items will allow you to assign each DMA channel a type, depending on the
type of device using the channel. The option “Available” means the channel is
going to assign automatically.
Options: Available (Default) / Reserved

Reser ved M emo ry Size

T his item allows BIOS to reserve cert ain memory size for spe ci fic PCI device.
Options: Disabled (De fault) / 16K / 32K / 64K

21

P43B-A7 & P43C-A 7 BIOS Man ual

PCI Express Con figuration

PCIPnP

PCI Express Configuration

Active State Power-Management[Disabled]

PCIE Ports Configu ration

PCIE Port 0 [Auto]
PCIE Port 1 [Auto]
PCIE Port 2 [Auto]

PCIE Port 3 [Auto]
PCIE Port 4 [Auto]
PCIE Port 5 [Auto]
PCIE High Priority Port [Disabled]

PCIE Port 0 IOxAPIC Enable [Disabled]
PCIE Port 1 IOxAPIC Enable [Disabled]

PCIE Port 2 IOxAPIC Enable [Disabled]
PCIE Port 3 IOxAPIC Enable [Disabled]

vxx.xx (C)Copyright 1985-200x, American Megatre nds, Inc.

Active State Po wer- M anagement

This item sets the ASPM configuration for the PCI Express devices before the
operating system boot s. T his function is for OS which does not support ASP M.
Options: Disabled (De fault) / Enabled

BIOS SETUP UTILITY

Enable/Disable
PCI Express L0s and
L1 link power

states.

Select Screen
Select Item

Change Option

+­F1

General Help
Save and Exit

F10

Exit

ESC

PCIE Port 0/1/2/3/4/5

Options: Auto (Default) / Enabled / Disabled

PCIE High Priority Port

Options: Disabled (De fault) / P ort0 / Port1 / Port2 / P ort3 / P ort4 / Port5

PCIE Port 0/1/2/3/4/5 IOxAPIC Enable

Options: Disabled (De fault) / Enabled

22

P43B-A7 & P43C-A 7 BIOS Man ual

4 Boot Menu

T his m enu allows you to setup the system boot options.

Main Advan ced PCIPnP Boot Chipset Performance

Boot Settings

> Boot Device Priority

> Hard Disk Drives
> Removable Drives

> CD/DVD Drives

> Boot Settings Configuration

BIOS SETUP U TILITY

Exit

Specifies the
Boot Device

Priority sequence.

Select Screen
Select Item
Go to Sub Screen

Enter

General Help

F1

Save and Exit

F10

Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

Boot Device Priority

Items in this sub-menu specify the boot device priority sequence from the available
devices. The number of device items that appears on the screen depends on the

number of devi ces instal led in the system.

Hard Disk Drives

T he BIOS will attem pt t o arrange the hard di sk boot sequence au tomatical ly. Yo u
can also ch ange th e b o oti n g s equence. T he n u mber of dev i ce i t ems t h at ap p ears o n

the screen depends on the num ber of devices installed in the system.

Re mo va ble Dr ives

T he BIOS will attem pt t o arrange t he removab le drive boot sequ ence aut omati cally.
You can also change the booting sequence. The number of device items that

appears on the screen depends on the number of devic es installed in the system.

23

P43B-A7 & P43C-A 7 BIOS Man ual

CD/DVD Drives

T he B IOS will attempt to arrange the CD/DVD drive boot sequence automati cally.
You can also change the booting sequence. The number of device items that

appears on the screen depends on the number of devic es installed in the system.

Boot Setti ngs Configuration

BIOS SETUP UTILITY

Boot

Boot Settings Conf iguration

Quick Boot [Enabled]

Full Screen LOGO Show [Enabled]
AddOn ROM Display Mode [Force BIOS]

Bootup Num-Lock [ON]
Interrupt 19 Capture [Disabled]
BOOT SUCCESS BEEP [Enabled]

Allows BIOS to skip
certain tests while
booting. This will

decrease the time
needed to boot the

system.

Select Screen
Select Item

Change Option

+­F1

General Help
Save and Exit

F10

Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Megatre nds, Inc.

Quick Boot

Enabling this option will cause an abridged version of the Power On Self-Test
(POST) to execute after you power up the computer.

Options: Enabled (Default) / Disabled

Full Screen LOGO Sho w

T his i tem allows you to enable/disable Full S creen LOGO Show function.
Options: Enabled (Default) / Disabled

AddOn RO M Display Mode

T his item sets the display mode for option ROM.
Op t i ons : F orce B IO S (Default) / Keep Cur ren t

24

P43B-A7 & P43C-A 7 BIOS Man ual

Bootup Num-Lock

Selects the NumLock State after the system switched on.
Options: ON (Default) / OFF

Interrupt 19 Capture

Interrupt 19 is the software interrupt that handles t he boot disk funct ion. W hen set to
Enabled, this item allows the option ROMs to trap interrupt 19.

Options: Disabled (De fault) / Enabled

BOOT SUCCESS BEEP

W hen t his item is set t o Enabled, BIOS will let user know boot success with beep.
Options: Enabled (Default) / Disabled

25

P43B-A7 & P43C-A 7 BIOS Man ual

5 Chipset Menu

Th i s su b m en u all o ws you to co nfig u re t he sp eci fi c feat u res of the chip s et i n s tall ed o n
your system. This chipset manage bus speeds and access to system memory

resourc es, such as DRAM . It also coordinates communications with the P CI bus.

Notice

z Beware of that setting inappropriate values in items of this menu may cause

system to m alfunction.

Main Advanc ed PCIPnP Boot Chipset Performance

Advanced Chipset Settings
WARNING: Setting wrong values in below sections

may cause system to mal function.

> North Bridge Configuration

> South Bridge Configuration

BIOS SETUP UTILITY

Exit

Configure North Bridge
features.

Select Screen
Select Item

Go to Sub Screen

Enter

General Help

F1

Save and Exit

F10

Exit

ESC

vxx.xx (C)Copyright 1 985-200x, American Me g atrends, Inc.

26

P43B-A7 & P43C-A 7 BIOS Man ual

Nort h Bridge C onfi gur ation

BIOS SETUP UTILITY

North Bridge Chipset Configuration

Memory Remap Feature [Enabled]

PCI MMIO Allocation:

Memory Hole [Disabled]
Initiate Graphic Adapter [PEG/PCI]

IGD Graphics Mode Select [Enabled, 32MB]

IGD GTT Graphics memory size [No VT mode, 2MB]
PAVP Mode [Lite]

PEG Port Configuration

PEG Port [Auto]

Chipset

ENABLE: Allow
remapping of
overlapped PCI memory

above the total
physical memory.

DISABLE: Do not allow
remapping of memory.

Select Screen
Select Item

Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

M emory Remap Feature

This item allows you to enable or disable the remapping of the overlapped PCI
memory above the total physical m emory. Only 64-bit OS supports this function.
Options: Enabled (Default) / Disabled

Memory Hole

You can reserv e thi s area of s ystem memory for ISA adapter R OM. W hen t his area
is reserved it cannot be cached. Check the user i nformat ion of periphe rals that need

to u se thi s area o f s ys t em m em ory for t h e m em o ry requi rement s.
Options: Disabled (De fault) / 15M -16M

Initiate G raphic Adapter

T his i tem allows you to enable or disable VGA controller.
Options: PEG/PCI (Default) / IGD / PCI/IGD / PCI/P EG / PEG/IGD

IGD Graphic s Mode Sel ect

This item will be different as your memory modules. When the memory size is
decided, this frame buffer size will also be fixed.
Options: Enabled, 32MB (Default) / Enabled,64MB / Enabled,128MB / Disabled

27

P43B-A7 & P43C-A 7 BIOS Man ual

IGD GTT Graphics memory size

Opti ons: No VT m ode, 2MB (Defaul t)

PAVP Mode

GMCH P rotected Audio Video P ath (PAVP ) BIOS support.
Options: Lite (Default) / Disabled / High

PEG Port

T his B IOS feature is a toggle that enables or disables the PC I Express port.
Options: Auto (Default) / Disabled

South Br idge C onfi gura tion

BIOS SETUP UTILITY

South Bridge Chipset Configuration

USB Functions [8 USB Ports]

USB 2.0 Controller [Enabled]

HDA Controller [Enabled]
SMBUS Controller [Enabled]

OnBoard Lan Control [Enabled]
Onboard Lan Boot Rom [Disabled]

MAC ID Information

SLP_S4# Min. Assertion Width [4 to 5 seconds]

Chipset

Options

Disabled
2 USB Ports
4 USB Ports

6 USB Ports
8 USB Ports

Select Screen
Select Item

Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

USB Functions

T he item determi nes the number of functional USB port.
Options: 8 USB Ports (Default) / 6 USB Ports / 4 USB Ports / 2 USB Ports /

Disabled

USB 2.0 Controller

T his entry is to enabled/ di sabled EHCI controller only. This Bios itself may/m ay not
have high speed USB support. If the Bios has high speed US B support built in, the

support will be automatically turn on when high speed device were atta ched.
Options: Enabled (Default) / Disabled

28

P43B-A7 & P43C-A 7 BIOS Man ual

HDA Controlle r

T his i tem allows you to control the HD Audio support.
Options: Enabled (Default) / Disabled

SMBUS Controller

T h is B IOS feat ure co nt rol s t he I/ O bu f fe rs fo r t he S M B us .
Options: Enabled (Default) / Disabled

OnBoard Lan Control

T his i tem allows you to enable or disable t he Onboard LAN.
Options: Enabled (Default) / Disabled

Onboard Lan Boot Rom

T his i tem allows you to select the status of Onboard LAN Boot R OM.
Options: Disabled (De fault) / Enabled

MAC ID Information

T his item shows the LAN MAC ID.

SLP_S4# Min. Assertion Width

Options: 4 to 5 seconds (Default ) / 3 to 4 seconds / 2 to 3 s econds / 1 t o 2 seconds

29

P43B-A7 & P43C-A 7 BIOS Man ual

6 Performance Menu

T his subm enu allows you to change voltage and clock of various devices.
(Howev er, we suggest you to use the default setting. C hanging the voltage and clock

improperly may damage the device. )

Notice

z Beware of that setting inappropriate values in items of this menu may cause

system to m alfunction.

Main Advanced PCIPnP Boot Chips et Performance

Advance Performance Settings

WARNING:Please Clear CMOS if system no display

after overclocking.

CPU Frequency Setting
PCIE Clock By [Auto]

PCIE Frequency Setting [100]

PSI Control [Enabled]
CPU Voltage [Default ]

FSB Voltage [Default ]
Chipset Voltage [Default ]
Memory Voltage [Default ]

DRAM Frequency [Auto]
Configure DRAM Timing by SPD [Enabled]

[266]

BIOS SETUP UTILITY

Allows BIOS to Select
CPU Over Clock.

Note:
MIN = 100 MHZ
MAX = 800 MHZ

Exit

Select Screen
Select Item

Go to Sub Screen

Enter

General Help

F1

Save and Exit

F10

Exit

ESC

vxx.xx (C)Copyright 1985-200x, American Megatrends, Inc.

CPU Frequency Setting

T his i tem allows you to select the CPU Frequency.
Options: 266 (Default ) / Min= 100MHz; Max= 800MHz

PCIE Clock By

T his i tem allows you to select the P C IE clock cont rol
Options: Auto (Default) / Manual

PCIE Freque nc y Se tt i ng

T his i tem allows you to select the P C IE clock cont rol
Options: 100 (Default ) / Min=100; Max=150

30

P43B-A7 & P43C-A 7 BIOS Man ual

PSI Con tro l

This item allows you to control power supply of CPU for the purpose of saving
energy.

Options: Enabled (Default) / Disabled

CPU Voltage

T his i tem allows you to select CPU Voltage Control.
Options: Default (Default) / +5% / +10% / +15%

FS B Voltage

T his i tem allows you to select FS B Voltage Control.
Options: Default (Default) / +0.1V / +0.2V / +0.3V

Chipset V oltage

T his i tem allows you to select Chipset Volt age C ontrol.
Options: Default (Default) / +0.1V / +0.2V / +0.3V

Memory Voltage

T his i tem allows you to select Memory Volt age Control.
Options: Default (Default) / +0.1V / +0.2V / +0.3V / + 0.4V / +0.5V / +0.6V

DRAM Freq ue ncy

T his i tem allows you to control the Memory Clock.
Options: Auto (Default ) / 667 MHz / 800 MHz / 1066 MHz

Configure DRAM Timing by SPD

Options: Enabled (Default) / Disabled

DRAM tCL

Options: 3 (De fault) / 3 ~ 10

DRAM t RAS

Options: 9 (De fault) / 9 ~ 24

31

P43B-A7 & P43C-A 7 BIOS Man ual

DRAM tRP

Options: 3 (De fault) / 3 ~ 10

DRAM t RCD

Options: 3 (De fault) / 3 ~ 10

DRAM tWR

Options: 3 (De fault) / 3 ~ 15

DRAM tRF C

Options: 15 (Default) / 15 ~ 78

DRAM tWTR

Options: 2 (De fault) / 2 ~ 15

DRAM t RRD

Options: 2 (De fault) / 2 ~ 15

DRAM tRTP

Options: 2 (De fault) / 2 ~ 15

32

P43B-A7 & P43C-A 7 BIOS Man ual

7 Exit Menu

This menu allows you to load the optimal default settings, and save or discard the
changes to the B IOS items.

Main Advanc ed PCIPnP Boot Chipset Performance

Exit Options

Save Changes and Exit

Discard Changes and Exit
Discard Changes

Load Optimal Defaults

BIOS SETUP UTILITY

Exit

Exit system setup
after saving the

changes.
F10 key can be used

for this operation.

> Security

vxx.xx (C)Copyright 1 985-200x, American Me g atrends, Inc.

Select Screen
Select Item
Go to Sub Screen

Enter

General Help

F1

Save and Exit

F10

Exit

ESC

Save Changes and Exit

Save all confi gur ation changes to CMOS RAM and exit setup.

Discard Changes and Exit

Abandon all changes made during t he current session and exit setup.

Discard Chang es

Abandon all changes made during the current session and restore the previously
saved values.

Load Optimal De faults

This selection allows you to reload the BIOS when problem occurs during system
booting sequence. These configurations are factory settings optimized for this

system .

33

P43B-A7 & P43C-A 7 BIOS Man ual

Security

T his sub-menu allows you to provide/revise supervisor and user password.

BIOS SETUP UTILITY

Exit

Security Settings

Supervisor Password :Not Install ed
User Password :Not Install ed

Change Supervisor Password

User Access Level [Fu ll Access]
Change User Password
Clear User Password
Password Check [Se tup]

Boot Sector Virus Protection [Di sabled]

vxx.xx (C)Copyright 1 985-200x, American Me g atrends, Inc.

Install or Change the
password.

Select Screen
Select Item
Change

Enter

General Help

F1

Save and Exit

F10

Exit

ESC

Change Superv i sor Password

Setting the supervisor password will prohibit everyone except the supe rvisor from
making changes using the CMOS Setup Utility. You will be prompted with to enter a
password.

User Acess Level

T his item allows supervisor to set the user level.
Op t i ons : F ull A cces s (Defau l t ) / No Access / V iew On l y / Lim i t ed

Cha nge Us er Password

If the Supervisor Password is not set, then the User Password will function in the
same way as the Supervisor Password. If the Supervisor Password is set and the User
Password is set, the “User” will only be able to view configurations but will not be
abl e to ch an g e t h em .

Cle ar Use r Pa ssword

T his item is for clearing user passwo rd.

34

P43B-A7 & P43C-A 7 BIOS Man ual

P asswo rd Check

T his item is for setting the timing that checking password.
Options: Setup (Default) / Always

Boot Sector Vir us Protection

T his option allows you to choose the VIRUS W arning feature that is used to protect
the IDE H ard Disk boot sector. If this fun ction is enabled and an attempt is made to

write to the boot sector, BIOS will display a warning message on the screen and
sound an alarm beep.

Options: Disabled (De fault) / Enabled

35