Biostar NF720D A2G PLUS BIOS MANUAL

NF720D A2G+ BI O S Manu al

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

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

2 Adv anc ed Menu...... ............ ............ ............ ............ ........................ .........7

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

4 Boot Men u..............................................................................................22

5 Chipse t Menu.........................................................................................2 4

6 Performance Menu...............................................................................26

7 Exit Menu...............................................................................................34

NF720D A2G+ BI O S Manu al

BIOS Setup

Introduction

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

system configuration and save these settings to CMOS RAM. The 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. This system controls most of the input and output

devices such as keyboard, mouse, serial ports and disk drives. BIOS activates at the
first stage of the booting process, 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.
The rest of this manual will to guide you through the options and settings in BIOS
Setup.

Plug and Play Support

This AMI BIOS supports the Plug and Play Version 1.0A specification.

EPA Green PC Support

This AMI BIOS supports Version 1.03 of the EPA Green PC specification.

APM Support

This AMI BIOS supports Version 1.1&1.2 of the Advanced Power Management
(AP M) speci ficati on. Power managem ent features are implem ented via th e S ystem

Management Int errupt (SMI). Sleep and Suspend power management modes are
supported. Power to the hard disk drives and video monitors can also be managed by

this AMI BIOS.

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 power manag ement and

device configuration capabilities as defined in the ACPI specification, developed by
Microsoft, Intel and T oshiba.

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NF720D A2G+ BI O S Manu al

PCI Bus Support

This AMI BIOS also supports Version 2.3 of the Intel PCI (Peripheral Component
Int erconn ect) local bus speci fi c ation.

DRAM Support

DDR2 SDRAM (Double Data Rate II Synchronous DRAM) is supported.

Su ppor t e d CP Us

This AMI BIOS supports the AMD CPU.

Using Setu p

W hen st arting 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 the bottom right corner, and you can
use these keys to sele ct it em and ch ange
the settings.

Notice

z The default BIOS settings apply for most conditions to ensure optimum performan ce

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 formance, the BIOS firmware is being continuously updated.

The BIOS information described in this manual is for your reference only. The actual
BIOS information and settings on board may be slightly different from this manual.

z The content of this manual is subject to be changed without notice. We will not be

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

General Help

Navigati on Keys

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NF720D A2G+ BI O S Manu al

1 M ain Men u

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

Main Advan c ed PCIPnP Boot Chipset Performance

System Overvie w
AMI BIOS

Version :01. 0 1.01
Build Date:01/ 0 1/08
NVMM ROM Versi o n :X.XXX.XX

System Memory

Size :

BIOS SETU P UTILITY

Exit

Use [ENTER], [TAB]
or [SHIFT-TAB] to

select a field.
Use [+] or [-] to

configure system Time.

System Time 00

System Date [Tue 01/01/2008]
Floppy A
> IDE Configur a tion

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

[ :00:00]

Select Screen
Select Item
Change Field

+-

Select Field

Tab

General Help

F1

Save and Exit

F10

Exit

ESC

AM I BIO S

Shows system information including BIOS version, built date, etc.

System Memory

Shows system memory size, VGA shard memory will be excluded..

System Ti me

Set the system internal clock.

System Date

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

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NF720D A2G+ BI O S Manu al

Floppy A

Select the type of floppy disk drive installed in your system.
Options: 1.44M, 3.5 in (Default) / 360K, 5.25 in / 1.2M, 5.25 in / 720K, 3.5 in /

2.88M, 3.5 in / None

IDE Configuratio n

T he BIOS will aut omatically detect the presence of IDE/SAT A devices. There is a
sub-menu fo r each IDE/S AT A device. Select a device and pres s <Enter> to enter

the sub-menu for detailed options.

Main

IDE Confugurat i on

OnChip P-ATA C o ntroller [Enabled]

OnChip S-ATA C o ntroller [Enabled]
SATA Mode Sele c t [SATA Mode]
Change the AHC I DID for Linux[Disabled]

> Primary IDE M aster
> Primary IDE S lave
> SATA 1 Devic e

> SATA 2 Devic e
> SATA 3 Devic e
> SATA 4 Devic e

Hard Disk Writ e Protect [Disabled]
IDE Detect Tim e Out (Sec) [35]

BIOS SETU P UTILITY

DISABLED: disables the
integrated IDE

Controller.
ENABLED: enables the
integrated IDE
Controller.

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.

OnChip P-ATA Controller

This item allows you to control the onboard IDE controller.
Options: Enabled (Default) / Disabled

OnChip S-ATA Controller

This item allows you to control the onboard SATA controller.
Options: Enabled (Default) / Disabled

SATA Mode Select

This item allows you to choose the SATA operation mode.
Options: SAT A Mode (Default) / RAID Mode/ AHCI Mode

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NF720D A2G+ BI O S Manu al

Cha nge the AHCI DID for L inux

This item appears only when SAT A mode is set to AHCI.
Options: Disabled (Default) / Enabled

Primary IDE Master/ Slave ; SATA 1/2/3/4 Device
(SATA 5/6 will be enabled only when S ATA M ode is set to RAID/AHCI)

Main

Primary IDE Master

Device :

Type [Auto]

LBA/Large Mode [Auto]
Block (Multi-Sector Transfer)[Auto]
PIO Mode [Auto]

DMA Mode [Auto]
S.M.A.R.T [Auto]

32Bit Data Transfer [Enabled]

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

T he BIOS detect s the information and values of resp ective devices, and these
information and values are shown below to the name of the sub-menu.

Type

Select the type of the IDE/SATA drive.
Options: Auto (Default) / CDROM / ARMD / Not Installed

LBA/Large Mode

Enable or disable the LBA mode.
Options: Auto (Default) / Disabled

Block (Multi-Sector Transfer)

Enabl e or disable m ulti-s ector trans fer.
Options: Auto (Default) / Disabled

PIO Mode

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

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NF720D A2G+ BI O S Manu al

DMA Mode

Select the DMA mode.
Options: Auto (Default) / Disabled

S.M.A.R.T

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

32Bit Data Trans fer

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

Har d Disk Wri te Protec t

Disable or enable device write protection. This will be effective only if the device
is accessed through BIOS.

Options: Disabled (Default) / Enabled

IDE Detect Time Out (Sec)

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

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NF720D A2G+ BI O S Manu al

2 Advanced Menu

The Advanced Menu allows you to configure the settings of CPU, Super I/O, Power
Management, and other system devices.

Notice

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

system to malfunction.

Main Advanced PCIPnP Boot Chipset Performanc e

WARNING: Setti n g wrong values in below sections
may c a use system to malfunction.

> CPU Configur a tion

> SuperIO Conf i guration
> Hardware Hea l th Configuration
> Smart Fan Co n figuration

> Power Config u ration
> USB Configur a tion

> AUDIO Config u ration
> Onboard LAN C onfiguration

BIOS SETU P UTILITY

Configure CPU.Advanced Setti n gs

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 Configuration

This item shows the CPU information that the BIOS automatically detects.

Advan ced

CPU Configurat ion

Module Version :
AGESA Version:
Physical Count :
Logical Count:

AMD CPU
Revision:

Cache L1:
Cache L2:
Cache L3:
Speed :
Current FSB Mu ltiplier:
Maximum FSB Mu ltiplier:
Able to Change Freq :
uCode Patch Le vel :

Secure Virtual Machine Mode [Ena bled]

PowerNow [Ena bled]
ACPI SRAT Tabl e [Ena bled]

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

BIOS SETU P UTILITY

7

Enable/Disable
Secure Virtual Machine

Mode (SVM)

Select Screen
Select Item
Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

NF720D A2G+ BI O S Manu al

Secur e Virtual Machine Mode

Virtualization Technology can virtually separate your system resource into several
parts, thus enhance the performance when running virtual machines or multi
interface systems.

Options: Enabled (Default) / Disabled

PowerNow

This item allows you to enable or disable the PowerNow power saving technology.
Options: Enabled (Default) / Disabled

ACPI SRAT Tabl e

T he operating s ys tem scans the ACP I SRAT at boot time and uses the informatio n t o
better allocate memory and schedule software threads for maximum perform ance.
This item controls whether the SRAT is made available to the operating system at
boot up, or not.
Options: Enabled (Default) / Disabled

S uperI O Co nf i g urati o n

Advan ced

Configure ITE8 718 Super IO Chipse t

Onboard Floppy Controller [Ena bled]

Serial Port1 A ddress [3F8 /IRQ4]
Parallel Port Address [378 ]
Parallel Por t Mode [Nor mal]

Parallel Por t IRQ [IRQ 7]
Keyboard Power On [Dis abled]
Mouse PowerOn [Dis abled]
Restore on AC Power Loss [Pow er Off]

BIOS SETU P 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 Controller

Select enabled if your system has a floppy disk controller (FDC) installed on the
system board and you wish to use it. If you installed another FDC or the system uses
no floppy drive, select disabled in this field.
Options: Enabled (Default) / Disabled

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NF720D A2G+ BI O S Manu al

Serial Port1 Address

Select an address and corresponding interrupt fo r the first and second seri al ports.
Options: 3F8/IRQ4 (Default) / 2F8/IRQ3 / 3E8/IRQ4 / 2E8/IRQ3 / Auto /
Disabled

Parallel Port Address

T his item allows you to determine access onboard p arallel port controller with which
I/O Address.

Options: 378 (Default) / 278 / 3BC / Disabled

Parallel Port Mode

This item allows you to determine how the parallel port should function.
Options: Normal (Default) Using Parallel port as Standard 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 P ort IRQ

This item allows you to select the IRQ for the onboard parallel port.
Options: IRQ7 (Default) / IRQ5 / Disabled

Keyboa rd PowerOn

This item allows you to control the keyboard power on function.
Options: Disabled (De fault) / Specific Key / Stroke Key

Mouse PowerOn

This item allows you to control the mouse power on function.
Options: Disabled (Default) / Enabled

Restore on AC Power Loss

This setting specifies how your system should behave after a power fail or interrupts
occurs. By choosing Disabled will l eave the comput er in t he power off state.

Choosing Enabled will restore the system to the status before power failur e or
interrupt occurs.
Opt ions: Power O ff (Default) / Power On / Last S tat e

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NF720D A2G+ BI O S Manu al

Hardware Health Confi guration

This item shows the system temperature, fan speed, and voltage information.

Advan ced

Hardware Healt h Configuration

H/W Health Fun ction [Ena bled]

Shutdown Tempe rature [Dis abled]

CPU Temperatur e
CPU FAN Speed( JCFAN1)
SYS FAN Speed( JSFAN1)

CPU Voltage
Chip Voltage

+3.30V
+5.00V
+12.0V
HT Voltage
DDR Voltage

5VSB
VBAT

BIOS SETU P 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 you computer contains a monitoring system, it will show PC health status during
POST stage.
Options: Enabled (Default) / Disabled

Shutdown Te m perature

This item allows you to set up the CPU shutdown T emperature.
Options: Disabled (Default) / 60℃/140℉ / 65℃/149℉ / 70℃/158℉ /

75℃/167℉ / 80℃/176℉ / 85℃/185℉ / 9 0 ℃/194℉

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NF720D A2G+ BI O S Manu al

Smart Fan Confi guration

Advan ced

Smart Fan Conf iguration

CPU Smart Fan [Dis abled]

Smart Fan Cali bration
Control Mode
Fan Ctrl OFF( C )
Fan Ctrl On(C)
Fan Ctrl Start value
Fan Ctrl Sensi tive

o

o

BIOS SETU P 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 Megatrends, Inc.

CPU Sma r t Fa n

This item allows you to control the CPU Smart Fan function.
Options: Disabled (default) / Auto / 4-Pin / 3-Pin

Sm art Fan Calibr a tion

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

Control Mode

This item provides several operation modes of the fan.
Options: Quiet / Performance / Manual

Fan Ctrl OF F(℃)

If the CPU/System Temperature is lower than the set value, FAN will turn off.
Options: 0~127 (℃)

Fan Ctrl On(℃ )

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

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NF720D A2G+ BI O S Manu al

Fan Ctrl S tart Value

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

Fan Ctrl Sensitive

Incr easing the val ue will raise the speed of C P U/System fan.
Options: 1~127

Power Con figuration

Advan c ed

Power Configur a tion

> Chipset ACPI Configuration

Suspend mode [S1 (POS)]
Repost Video o n S3 Resume [NO]
ACPI Version F e atures [ACPI v1.0]
ACPI APIC supp o rt [Enabled]
AMI OEMB table [Enabled]
Headless mode [Disabled]

WOL From Soft- O ff [Disabled]
Resume On Ring [Disabled]
USB Resume fro m S3/S4 [Disabled]
Resume By RTC A larm [Disabled]
RTC Alarm Date ( Days)
System Time

BIOS SETU P UTILITY

Chipset ACPI related
Configuration settings

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.

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NF720D A2G+ BI O S Manu al

Chips e t ACPI Configuration

Advan c ed

Chipset ACPI C o nfiguration

SouthBridge AC P I HPET TABLE [Enabled]

ACPI PM Timer W idth [24-bits]

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

BIOS SETU P UTILITY

Options

Disabled
Enabled

Select Screen
Select Item
Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

SouthBridge ACPI HPET TABLE

Options: Enabled (Default) / Disabled

AC PI PM Timer Width

Options: 24-bits (Default) / 32-bits

Suspe nd m ode

The item allows you to select the suspend type under the ACPI operating system.
Options: S1 (POS) (Default) Power on Suspend

S3 (STR) Suspend to RAM
Auto POS+STR

Repost Video on S3 Re sume

Options: NO (Default) / YES

ACPI Version Features

T he item allows you to select t he version of ACP I.
Options: ACPI v1.0 (Default) / ACPI v2.0 / ACPI v3.0

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NF720D A2G+ BI O S Manu al

ACPI AP I C support

T his item is used to enable or di sable th e m ot herboard's APIC (Advan ced
Programmable Interrupt Controller). The APIC provides multiprocessor support,
more IRQs and faster interrupt handling.

Options: Enabled (Default) / Disabled

AMI OEMB tabl e

Set this value to allow the ACPI BIOS to add a pointer to an OEMB table in the Root
System Description Table (RSDT ) table.

Options: Enabled (Default) / Disabled

Headless mode

This is a server-spe cific 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 (Default) / Enabled

WO L Fro m Soft-O ff

This item allows you control the wake on LAN (WOL) function.
Options: Disabled (Default) / Enabled

Resume On Rin g

This item allows you to control the wake on ring function.
Options: Disabled (Default) / Enabled

USB Resume from S3/S4

This item allows you to enable or disabled the USB resume from S3/S4 function.
Options: Disabled (Default) / Enabled

Resum e By RTC Al arm

When “ Enabled”, you can set the date and time at which the RTC (real-time clock)
alarm awak ens t he s ys tem from Suspend mode.

Options: Disabled (Default) / Enabled

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NF720D A2G+ BI O S Manu al

RTC Alar m Date (Days)

You can choose which date the system will boot up.

System Time

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

Note: If you have chan ged the setti ng, the system must b oot up until it starts th e
operating s y stem b efore th i s fun cti o n works.

USB Configuration

This item shows the USB controller and using USB device information.

Advan c ed

USB Configurat i on

Module Version - 2.24.2-13.4

USB Devices En a bled:

USB 1.1 Contro l ler [Enabled]

USB 2.0 Contro l ler [Enabled]
Legacy USB Sup p ort [Enabled]

USB 2.0 Contro l ler Mode [HiSpeed]
BIOS EHCI Hand - Off [Enabled]

> USB Mass Sto r age Device Configuration

BIOS SETU P UTILITY

Options

Enabled
Disabled

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 1.1 Controller

This item allows you to control the USB 1.1 mode of the USB controller..
Options: Enabled (Default) / Disabled

USB 2.0 Controller

This item allows you to control the USB 2.0 mode of the USB controller..
Options: Enabled (Default) / Disabled

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NF720D A2G+ BI O S Manu al

Legacy USB Support

This item determines if the BIOS should provide legacy support for USB devices
li ke the keyboard, mouse, and USB drive. T his is a useful feature when using such
USB devices with operating systems that do not natively support USB (e.g.

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

USB 2.0 Controller Mode

This item allows you to select the operation mode of the USB 2.0 controller.
Options: HiSpeed (Default) 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 feature.
Options: Enabled (Default) / Disabled

US B Ma ss St o rag e De vi ce C o n f ig urat io n

Advanced

USB Mass Storage Device Configurati on

USB Mass Storage Reset Delay [20 Se c]

Device #

Emulation Type [Auto]

BIOS SETUP UTILITY

Number of seconds
POST waits for the
USB mass storage

device after start
unit command.

+­F1

F10
ESC

vxx.xx (C)Copyright 19 85-200x, American Megatrends, Inc.

USB Mass Storage Reset Delay

This item allows you to set the reset delay for USB mass storage device.
Options: 20 S ec (Default) / 10 S ec / 30 Sec / 40 Sec

16

Select Screen
Select Item

Change Option
General Help

Save and Exit
Exit

NF720D A2G+ BI O S Manu al

E m ula ti o n Type

This item allows you to select the emulation type of the USB mass storage device.

Options: Auto (Default) / Floppy / Forced FDD / Hard Disk / CDROM

AUDI O Configur atio n

Advan c ed

AUDIO Configur a tion

AZALIA AUDIO [Internal codec + E]

BIOS SETU P UTILITY

Internal codec is
included in chipset

it is for HDMI
AUDIO function

External codec is
a onboard codec

Select Screen
Select Item

Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

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

AZALI A AUDIO

This item allows you to control the onboard codec and on-chip codec.
Options: Internal codec +E (Defaul t) / Internal cod ec / External codec / Disabled

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NF720D A2G+ BI O S Manu al

Onboa r d LA N Configura tion

Advan c ed

Onboard LAN Co n figuration

Onboard LAN [Auto]

Onboard Lan Bo o t ROM [Disabled]

MAC ID Informa t ion :

BIOS SETU P UTILITY

Control onboard Lan
on/off

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 LAN

This option allows you to control the onboard LAN controller.
Options: Auto (Default) / Disabled

Onbaord Lan Boot ROM

This item allows you to enable or disable the Onboard LAN Boot ROM.
Options: Disabled (Default) / Enabled

MAC ID Informa tion

This item shows the LAN MAC ID information.

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NF720D A2G+ BI O S Manu al

3 PCIPnP Menu

This 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 malfunction.

Main Advan ced PCIPnP Boot Chipset Performance

Advanced PCI/P n P Settings
WARNING: Setti n g wrong values in below sections

may c a use system to malfunction.

Clear NVRAM [No]

Plug & Play O/ S [No]
PCI Latency Ti m er [32]
Allocate IRQ t o PCI VGA [Yes]

Palette Snoopi n g [Disabled]
PCI IDE BusMas t er [Enabled]

> PCI Resource
> PCI Express C onfiguration

BIOS SETU P UTILITY

Clear NVRAM during
System Boot.

Select Screen
Select Item

Change Option

+-

General Help

F1

Save and Exit

F10

Exit

ESC

Exit

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

Clear NVRAM

This item allows you to clear the data in the NVRAM (CMOS) by selecting “Yes”.
Options: No (Default) / Yes

Plug & Play OS

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

system like Windows™ 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

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NF720D A2G+ BI O S Manu al

PCI Latency Timer

This item controls how long a PCI device can hold the PCI bus befor e 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: 32 (Default) / 64 / 96 / 128 / 160 / 192 / 224 / 248

Allocate I RQ to PCI VGA

This item allows BIOS to choose an IRQ to assign for the PCI VGA card.
Options: Yes (Default) / No

Palette Snooping

Some old graphic controllers need to “ snoop” on the VGA palette and then map it to
their display as a way to provide boot information and VGA compatibility. This item

allows such snooping to take place.
Options: Disabled (Default) / Enabled

PCI IDE BusMaster

This item is a toggle for the built-in driver that allows the onboard ID E controller to
per form DM A (Dir ect Memory Access) trans fers.

Options: Enabled (Default) / Disabled

PCI Reso urce

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.

BIOS SETUP UTILITY

20

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

NF720D A2G+ BI O S Manu al

IRQ3/4/5/7/9/10/11/14/15

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

Options: Available (Default) / Reserved

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

These items will allow you to assign each DMA channel a type, depending on the
type of device us ing the channel. T he option “ Available” m eans the channel is

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

Reser ved M em or y Size

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

PCI Express Configuration

PCIPnP

PCI Express Configuration

Active State Power-Management[Disabled]

BIOS SETUP UTILITY

Enable/Disable
PCI Express L0s and
L1 link power

states.

Select Screen
Select Item

+-

Change Option

F1

General Help

F10

Save and Exit

ESC

Exit

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

Active State Po wer- Management

This item sets the ASPM configuration for the PCI Express devices b efore the
operating system boots. T his function is for OS which does not support ASPM.

Options: Disabled (Default) / Enabled

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NF720D A2G+ BI O S Manu al

4 Boot Menu

This menu allows you to setup the system boot options.

Main Advan ced PCIPnP Boot Chipset Performance

Boot Settings Configuration

> Boot Device Priority

> Hard Disk Dr ives
> Removable Dr ives

> CD/DVD Drive s

Quick Boot [Enabled]
AddOn ROM Disp lay Mode [Force BIOS]

Bootup Num-Loc k [ON]
Interrupt 19 C apture [Enabled]

BIOS SETU P 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. T he number of device items that appears on the screen depends on the

number of devi ces installed in the system.

Hard Disk Drives

T he BIOS will attem pt to arrange the hard disk boot sequence automatically. You
can also ch ange the booti ng sequence. T he number of device it ems t hat appears on

the screen depends on the number of devices installed in the system.

Re mo va ble Dr ives

T he BIOS will attem pt to arrange the removable dri ve boot sequence automati cally.
You can also change the booti ng sequence. The number of device i tems that

appears on the screen depends on the number of devices installed in the system.

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NF720D A2G+ BI O S Manu al

CD/DVD Drives

The BIOS will attempt to arrange the CD/DVD drive boot sequence automatically.
You can also change the booti ng sequence. The number of device i tems that

appears on the screen depends on the number of devices installed in the system.

Quick Boot

Enabling this option will cause an abridged version o f the Power On Self-T est
(POST) to execute after you power on the computer.

Options: Enabled (Default) / Disabled

AddOn ROM Displ ay M ode

This item sets the display mode for option ROM.
Options: Force BIOS (Default) / Keep Current

Boot u p Num- Lo ck

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

Interrupt 19 Capture

When set to Enabled, this item allows the option ROMs to trap interrupt 19.
Options: Enabled (Default) / Disabled

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NF720D A2G+ BI O S Manu al

5 Chipset Menu

T his submenu allows you to confi gure the speci fic featur es of the chipset installed on
your system. T his chipset manage bus speeds and access to system memory

resources , such as DR AM. It also coordinates co mmuni cations with the P C I bus.

Notice

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

system to malfunction.

Main Advan ced PCIPnP Boot Chipset Performance

Advanced Chips et Settings
WARNING: Setti ng wrong values in below sections

may c ause system to malfunction.

Primary Graphi cs Adapter [PCIE->PCI]

PCIE training [Gen2 if supported]

Iso Flow Contr ol [Disabled]
Hi Priority Ch annel [Enabled]

Display Refres h [Enabled]

BIOS SETU P U TILITY

Exit

1 Memory have to
over 2G size

2 Primary Graphics
Adapter decide
by Hybrid-Mode
3 External VGA
must support this
feature

Select Screen
Select Item

+-

Change Option
General Help

F1

Save and Exit

F10

Exit

ESC

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

Prim ary Graphi cs Adapter

This item allows you to choose the primary graphics device.
Options: PCIE —> PCI (Default) / PCI —> PCIE

P C I E Trai nin g

Options: Gen2 if supported (D efault) / Only Gen1

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NF720D A2G+ BI O S Manu al

Iso Flow C ontrol

Options: Disabled (Default) / Enabled

Hi Priority Channel

Options: Enabled (Default) / Disabled

Display Refresh

Options: Enabled (Default) / Disabled

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NF720D A2G+ BI O S Manu al

6 Performance Menu

This submenu allows you to change voltage and clock of various devices.
(However, we recommend the default setting. Changing the voltage and clock

improperly may damage the system.)

Notice

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

system to malfunction.

Main Advan ced PCIPnP Boot Chipset Performance

Performance Se ttings
WARNING: Setti ng wrong values in below sections

may c ause system to malfunction.

> Over-Voltage Configuration

> DRAM Timing Configuration
> Spread Spect rum Configuration
> AMD Overcloc king Configuration

CPU Frequency, MHz [200]
SB to K8(CPU) Freq Auto [Enabled]
SB to K8(CPU) LinkWidth [16 16 ]
Memory Clock M ode [Auto]
MCP PCI-Expres s Frequency, MH [1 00]

BIOS SETU P U TILITY

z

Adjust Voltage
function.

Exit

Select Screen
Select Item

Enter

Go to Sub Screen

F1

General Help

F10

Save and Exit

ESC

Exit

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

26

NF720D A2G+ BI O S Manu al

Ov er-Vol tage Configur a tion

BIOS SETU P U TILITY

Over-Voltage Co nfiguration

CPU Over-Volta ge [StartUp]

Chipset

Over-V oltage [StartUp]

HT

Over-Voltag e [StartUp]

Memory

Over-Vo ltage [1.95V]

Performance

Options

+­F1
F10
ESC

Select Screen
Select Item

Change Option
General Help
Save and Exit
Exit

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

CPU Over-Voltage

This item allows you to select CPU Voltage Control.
Options: StartUp (Default) / +3.3% / +6.6% / +10.0%

Chipset Over -Voltage

This item allows you to select NB/SB Voltage Control.
Options: StartUp (Default) / +0.030V / +0.060V / +0.090V

HT Ov er -Voltage

This item allows you to select HT Voltage Control.
Options: StartUp (Default) / +0.030V / +0.060V / +0.090V

Memory Ov er -Voltage

This item allows you to select DDR Voltage Control.
Options: 1.95V (Default) / 2.00V / 2.05V / 2.10V

T

27

NF720D A2G+ BI O S Manu al

DRA M Timi ng Co nfiguration

BIOS SETU P U TILITY

DRAM Timing Co nfiguration

Memory CLK
CAS Latency( Tcl)
RAS/CAS Dela y(Trcd)
Row Precharg e Time(Trp)

Min Active R AS(Tras)
RAS/RAS Dela y(Trrd)
Row Cycle (T rc)
Command Rate (CR)

> Memory Confi guration

DRAM Timing Mo de [Auto]

Performance

Enter
F1

F10
ESC

Select Screen
Select Item
Go to Sub Screen

General Help
Save and Exit
Exit

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

M emory Configuration

BIOS SETU P U TILITY

Memory Configu ration

Bank Interleav ing [Auto]

Channel Interl eaving [XOR of Address bit]
Enable Clock t o All DIMMs [Disabled]
MemClk Tristat e C3/ATLVID [Disabled]

Memory Hole Re mapping [Enabled]
DCT Unganged M ode [Always]
Power Down Ena ble [Disabled]

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

Performance

Enable Bank Memory
Interleaving

+­F1

F10
ESC

Select Screen
Select Item
Change Option

General Help
Save and Exit
Exit

B a n k Int er l eaving

Bank Interleaving is an advanced chipset technique used to improve memory
perform ance. Memory interleaving increases bandwidth by allowing simultaneous

access to more than one piece of mem ory.
Options: Auto (Default) / Disabled

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NF720D A2G+ BI O S Manu al

Channel Interleavin g

This item allows you to determine the value of Channel Interleaving
Options: XOR of Address bits [20:16, 6] (Default) / Disabled / Address bits 6/

Address bits 12 / XOR of Address bits [20:16, 9]

En abl e Clock to All DIM Ms

This item determines whether the BIOS should actively reduce EMI
(Electromagnetic Interference) and reduc e power consumption by turning off

unoccupied or inactive DIMM slots.
Options: Disabled (Default) / Enabled

MemClk Tristate C 3/ATLVID

This item enables or disables the MemClk T ristate function in C3 Mode.
Options: Disabled (Default) / Enabled

Memory Hole Remapping

This item allows you to enable or disable the remapping of the overlapped PCI
memory above the total physical memory. Only 64-bit OS supports this function.

Options: Enabled (Default) / Disabled

DCT Un ganged Mode

This item allows you to set DCT Unganged Mode function.
Options: Always (Default) / Auto

Power Down Enable

This item controls the DRAM power down function.
Options: Disabled (Default) / Enabled

D RAM Timing Mode

This item allows you to choose to manually or automatically regul ate the DRAM
Timing.

Options: Auto (Default) / DCT0 / DCT1(for AM2+ CPU) / Both(for AM2+
CPU)

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NF720D A2G+ BI O S Manu al

Spr ead Spectrum Confi gu rat io n

BIOS SETU P U TILITY

Spread Spectru m Configuration

CPU/LDT Spread Spectrum [Disabled]

PCIE

Spread Sp ectrum [Disabled]

SATA

Spread Sp ectrum [Disabled]

PCI Spread Spe ctrum [Disabled]

Performance

Options

Disabled
Enabled

+­F1

F10
ESC

Select Screen
Select Item
Change Option

General Help
Save and Exit
Exit

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

CPU/LDT Spread Spectrum

This item allows you to control the CPU/LDT spread spectrum.
Options: Disabled (Default) / Enabled

PCIE Spread Spectrum

This item allows you to control the PCI-Express spread spectrum.
Options: Disabled (Default) / Linear Down

SATA Spread Spectrum

This item allows you to control the SATA spread spectrum.
Options: Disabled (Default) / Linear Down

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NF720D A2G+ BI O S Manu al

PCI Spr e ad Spect rum

This item allows you to control the PCI spread spectrum.
Options: Disabled (Default) / Linear Down

AMD Overclocking Configuration

T his item appears only when using AM2+ C P Us.

BIOS SETU P U TILITY

AMD Overclocki ng Configuration

Custom P-State s [Disabled]

Core FID [x12.0 2400MHz]
Core VID [1.2500 V]
Core DID [Divided by 1]

NB FID [2000 MHz]
NB VID [1.2500 V]

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

Performance

Tells BIOS whether to
use the setup options

below this to
configure the
P-States, or whether
to configure the

P-States automatically

+­F1

F10
ESC

Select Screen
Select Item
Change Option

General Help
Save and Exit
Exit

Custom P-States

This item allows you to select the P-States controlling.
Options: Disabled (Default) / Enabled

Core FID

This item allows you to select the Ratio/Frequency of AM2+ CPU.
Options: x8.0 1600MHz ~ x31.5 6300MHz (differed by CPU)

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NF720D A2G+ BI O S Manu al

Core VI D (for AM2+ CPU)

This function allows you to adjust the voltage of CPU.
Options: 0.0125V ~ 1.5500V (differed by CPU).

Core DID (for AM2 + CPU)

Options: Divided by 1 / Divided by 2 / Divided by 4 / Divided by 8 / Divided by
16 (differed by CPU)

NB FID (for AM2+ CPU)

This item allows you to select the Frequency of NB chip.
Options: 800MHz ~ 7000MHz with an interval of 200MHz (differed by CPU)

NB VID (for AM 2+ CPU)

This item allows you to select the voltage of NB chip.
Options: 0.0125V ~ 1.5500V (differed by CPU)

CPU Fr e que nc y, MHz

This item allows you to select the CPU Frequency.
Options: 200 (MHz) (Default) / 200 ~ 600

Processor Frequency Mult ipli er (fo r AM2 CPU)

Options: Auto (Default) / x4.0 800MHz ~ x25.0 5000MHz

SB to K8(CPU) Freq Auto

Options: Enabled (Default) / Disabled

SB to K8(CPU) Frequ ency

Options: 1000MHz (Default) / 200MHz ~ 2600MHz with an interval of
200MHz (differed by CPU)

SB to K8(CPU) L inkWi dth

Options: 16↓16↑ (Default) / 8↓8↑ / 4↓4↑

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NF720D A2G+ BI O S Manu al

Memory Clock Mode

This item allows you to control the Memory Clock.
Options: Auto (Default) / Limit / Manual

MemClock Value

Options: 200MHz (Default) / 266 MHz / 333 MHz / 400 MHz /
533 MHz (with AM2+ CPU)

MCP PCI-Exp ress Frequ ency, MHz

Options: 100 (MHz) (Default) / 100 ~ 200

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NF720D A2G+ BI O S Manu al

7 Ex it Menu

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

Main Advan ced PCIPnP Boot Chipset Performance

Exit Options

Save Changes a nd Exit

Discard Change s and Exit
Discard Change s

Load Optimal D efaults

Security Setti ngs

> Security

BIOS SETU P U TILITY

Exit

Exit system setup
after saving the

changes.

F10 key can be used
for this operation.

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.

Save Changes and E xit

Save all configuration changes to CMOS ROM and exit setup.

Discard Chang es and Exit

Abandon all changes made during the current session and exit setup.

Discard Chang es

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

Load Optimal Defaults

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

system.

34

NF720D A2G+ BI O S Manu al

Secur ity

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

BIOS SETU P U TILITY

Exit

Security Setti ngs

Supervisor Pas sword :Not Installed
User Password :Not Installed

Change Supervi sor Password

User Access Le vel [Full Access]
Change User Pa ssword
Clear User Pas sword
Password Check [Setup]

Boot Sector Vi rus Protection [Disabled]

vxx .xx (C)Copyright 1985-200x, American Megatrends, 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 P as swor d

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

User Acess Level

This item allows supervisor to set the user level.
Options: Full Access (Default) / No Access / View Only / Limited

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
able to change them .

Cle ar Use r Passw ord

This item is for clearing user password.

35

NF720D A2G+ BI O S Manu al

P assword Chec k

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

Boot Se ctor V ir us Protection

This option allows you to choose the VIRUS Warning feature that is used to protect
the IDE Hard Disk boot sector. If this fun ction is enabled and an attempt is made to

write to the boot sector, BIOS wi ll displ ay a warning message on the screen and
sound an alarm beep.

Options: Disabled (Default) / Enabled

36