ASRock 990FX EXTREME4: 3. UEFI SETUP UTILITY

3. UEFI SETUP UTILITY

3.1 Introduction

This section explains how to use the UEFI SETUP UTILITY to con gure your sys-

tem. The SPI Memory on the motherboard stores the UEFI SETUP UTILITY. You

may run the UEFI SETUP UTILITY when you start up the computer. Please press

<F2> or <Del>during the Power-On-Self-Test (POST) to enter the UEFI SETUP

UTILITY, otherwise, POST will continue with its test routines.

If you wish to enter the UEFI SETUP UTILITY after POST, restart the system by

pressing <Ctl> + <Alt> + <Delete>, or by pressing the reset button on the system

chassis. You may also restart by turning the system off and then back on.

Because the UEFI software is constantly being updated, the following

UEFI setup screens and descriptions are for reference purpose only,

and they may not exactly match what you see on your screen.

3.1.1 UEFI Menu Bar

The top of the screen has a menu bar with the following selections:

Main To set up the system time/date information

OC Tweaker To set up overclocking features

Advanced To set up the advanced UEFI features

H/W Monitor To display current hardware status

Boot To set up the default system device to locate and load the

Operating System

Security To set up the security features

Exit To exit the current screen or the UEFI SETUP UTILITY

Use < > key or < > key to choose among the selections on the menu

bar, and then press <Enter> to get into the sub screen.

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3.1.2 Navigation Keys

Please check the following table for the function description of each navigation

key.

Navigation Key(s) Function Description

/ Moves cursor left or right to select Screens

/ Moves cursor up or down to select items

+ / - To change option for the selected items

<Enter> To bring up the selected screen

<F1> To display the General Help Screen

<F9> To load optimal default values for all the settings

<F10> To save changes and exit the UEFI SETUP UTILITY

<ESC> To jump to the Exit Screen or exit the current screen

3.2 Main Screen

When you enter the UEFI SETUP UTILITY, the Main screen will appear and display

the system overview.

System Time [Hour:Minute:Second]

Use this item to specify the system time.

System Date [Day Month/Date/Year]

Use this item to specify the system date.

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3.3 OC Tweaker Screen

In the OC Tweaker screen, you can set up overclocking features.

CPU Confi guration

Overclock Mode

Use this to select Overclock Mode. Configuration options: [Auto] and

[Manual]. The default value is [Auto].

Spread Spectrum

This item should always be [Auto] for better system stability.

ASRock UCC

ASRock UCC (Unlock CPU Core) feature simpli es AMD CPU activation.

As long as a simple switch of the UEFI option “ASRock UCC”, you can

unlock the extra CPU core to enjoy an instant performance boost. When

UCC feature is enabled, the dual-core or triple-core CPU will boost to the

quad-core CPU, and some CPU, including quad-core CPU, can also in-

crease L3 cache size up to 6MB, which means you can enjoy the upgrade

CPU performance with a better price. Please be noted that UCC feature is

supported with AM3/AM3+ CPU only, and in addition, not every AM3/AM3+

CPU can support this function because some CPU’s hidden core may be

malfunctioned.

CPU Active Core Control

This allows you to adjust CPU Active Core Control feature. The con gura-

tion options depend on the CPU core you adopt. The default value is [Dis-

abled].

Processor Maximum Frequency

It will display Processor Maximum Frequency for reference.

North Bridge Maximum Frequency

It will display North Bridge Maximum Frequency for reference.

Processor Maximum Voltage

It will display Processor Maximum Voltage for reference.

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Multiplier/Voltage Change

This item is set to [Auto] by default. If it is set to [Manual], you may adjust

the value of Processor Frequency and Processor Voltage. However, it is

recommended to keep the default value for system stability.

HT Bus Speed

This feature allows you selecting Hyper-Transport bus speed. Con gura-

tion options: [200MHz] to [2000MHz].

HT Bus Width

This feature allows you selecting Hyper-Transport bus width. Con guration

options: [8 Bit] and [16 Bit].

DRAM Confi guration

DRAM Frequency

If [Auto] is selected, the motherboard will detect the memory module(s)

inserted and assigns appropriate frequency automatically.

DRAM Timing Control

Power Down Enable

Use this item to enable or disable DDR power down mode.

Bank Interleaving

Interleaving allows memory accesses to be spread out over banks on the

same node, or accross nodes, decreasing access contention.

Channel Interleaving

It allows you to enable Channel Memory Interleaving. Con guration op-

tions: [Disabled], [Auto]. The default value is [Auto].

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CAS# Latency (tCL)

Use this item to change CAS# Latency (tCL) Auto/Manual setting. The

default is [Auto].

RAS# to CAS# Delay (tRCD)

Use this item to change RAS# to CAS# Delay (tRCD) Auto/Manual setting.

The default is [Auto].

Row Precharge Time (tRP)

Use this item to change Row Precharge Time (tRP) Auto/Manual setting.

The default is [Auto].

RAS# Active Time (tRAS)

Use this item to change RAS# Active Time (tRAS) Auto/Manual setting.

The default is [Auto].

Command Rate (CR)

Use this item to change Command Rate (CR) Auto/Manual setting. Min:

1T. Max: 2T. The default is [Auto].

RAS# Cycle Time (tRC)

Use this item to change RAS# Cycle Time (tRC) Auto/Manual setting. The

default is [Auto].

Write Recovery Time (tWR)

Use this item to change Write Recovery Time (tWR) Auto/Manual setting.

The default is [Auto].

Refresh Cyle Time (tRFC)

Use this item to change Refresh Cyle Time (tRFC) Auto/Manual setting.

The default is [Auto].

RAS to RAS Delay (tRRD)

Use this item to change RAS to RAS Delay (tRRD) Auto/Manual setting.

The default is [Auto].

Write to Read Delay (tWTR)

Use this item to change Write to Read Delay (tWTR) Auto/Manual setting.

The default is [Auto].

Read to Precharge (tRTP)

Use this item to change Read to Precharge (tRTP) Auto/Manual setting.

The default is [Auto].

Four Activate Window (tFAW)

Use this item to change Four Activate Window (tFAW) Auto/Manual

setting. The default is [Auto].

Voltage Control

DRAM Voltage

Use this to select DRAM Voltage. The default value is [Auto].

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NB Voltage

Use this to select NB Voltage. The default value is [Auto].

HT Voltage

Use this to select HT Voltage. The default value is [Auto].

CPU Load-line calibration

Use this to select CPU Load-line calibration. The default value is [Auto].

CPU VDDA Voltage

Use this to select CPU VDDA Voltage. The default value is [Auto].

PCIE VDDA Voltage

Use this to select PCIE VDDA Voltage. The default value is [Auto].

Would you like to save current setting user defaults?

In this option, you are allowed to load and save three user defaults

according to your own requirements.

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3.4 Advanced Screen

In this section, you may set the con gurations for the following items: CPU Con gu-

ration, Nouth Bridge Con guration, South Bridge Con guration, Storage Con gura-

tion, Super IO Con guration, ACPI Con guration, and USB Con guration.

Setting wrong values in this section may cause

the system to malfunction.

Instant Flash

Instant Flash is a UEFI ash utility embedded in Flash ROM. This conve-

nient UEFI update tool allows you to update system UEFI without entering

®

operating systems rst like MS-DOS or Windows

. Just launch this tool

and save the new UEFI le to your USB ash drive, oppy disk or hard

drive, then you can update your UEFI only in a few clicks without prepar-

ing an additional oppy diskette or other complicated ash utility. Please

be noted that the USB ash drive or hard drive must use FAT32/16/12 le

system. If you execute Instant Flash utility, the utility will show the UEFI

les and their respective information. Select the proper UEFI le to update

your UEFI, and reboot your system after UEFI update process completes.

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3.4.1 CPU Configuration

Cool ‘n’ Quiet

TM

Use this item to enable or disable AMD’s Cool ‘n’ Quiet

technology. The

default value is [Enabled]. Con guration options: [Enabled] and [Disabled].

®

TM

If you install Windows

7 / Vista

and want to enable this function, please

set this item to [Enabled]. Please note that enabling this function may re-

duce CPU voltage and memory frequency, and lead to system stability or

compatibility issue with some memory modules or power supplies. Please

set this item to [Disable] if above issue occurs.

Secure Virtual Machine

When this option is set to [Enabled], a VMM (Virtual Machine Architecture)

can utilize the additional hardware capabilities provided by AMD-V. The

default value is [Enabled]. Con guration options: [Enabled] and [Disabled].

Enhance Halt State (C1E)

All processors support the Halt State (C1). The C1 state is supported

through the native processor instructions HLT and MWAIT and requires no

hardware support from the chipset. In the C1 power state, the processor

maintains the context of the system caches.

CPU Thermal Throttle

Use this item to enable CPU internal thermal control mechanism to keep

the CPU from overheated. The default value is [Auto].

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3.4.2 North Bridge Configuration

Primary Graphics Adapter

This item will switch the PCI Bus scanning order while searching for video

card. It allows you to select the type of Primary VGA in case of multiple

video controllers. The default value of this feature is [PCI Express]. Con-

guration options: [PCI] and [PCI Express].

IOMMU

Use this to enable or disable IOMMU. The default value of this feature is

[Disabled].

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3.4.7 USB Configuration

USB 2.0 Controller

Use this item to enable or disable the use of USB 2.0 controller.

USB 3.0 Controller

Use this item to enable or disable the use of USB 3.0 controller.

Legacy USB Support

Use this option to select legacy support for USB devices. There are four

con guration options: [Enabled], [Disabled], [Auto] and [UEFI Setup Only].

The default value is [Enabled]. Please refer to below descriptions for the

details of these four options:

[Enabled] - Enables support for legacy USB.

[Disabled] - USB devices are not allowed to use under legacy OS and

UEFI setup when [Disabled] is selected. If you have USB compatibility is-

sue, it is recommended to select [Disabled] to enter OS.

[Auto] - Enables legacy support if USB devices are connected.

[UEFI Setup Only] - USB devices are allowed to use only under UEFI

setup and Windows / Linux OS.

Legacy USB 3.0 Support

Use this option to enable or disable legacy support for USB 3.0 devices.

The default value is [Disabled].

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3.5 Hardware Health Event Monitoring Screen

In this section, it allows you to monitor the status of the hardware on your system,

including the parameters of the CPU temperature, motherboard temperature, CPU

fan speed, chassis fan speed, and the critical voltage.

CPU Fan 1 & 2 Setting

This allows you to set the CPU fan 1 & 2 speed. Con guration options: [Full

On] and [Automatic Mode]. The default is value [Full On].

Chassis Fan 1 Setting

This allows you to set the chassis fan 1 speed. Con guration options: [Full

On], [Automatic Mode] and [Manual]. The default is value [Full On].

Chassis Fan 2 Setting

This allows you to set the chassis fan 2 speed. Con guration options: [Full

On] and [Manual]. The default is value [Full On].

Chassis Fan 3 Setting

This allows you to set the chassis fan 3 speed. Con guration options: [Full

On] and [Manual]. The default is value [Full On].

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3.6 Boot Screen

In this section, it will display the available devices on your system for you to con g-

ure the boot settings and the boot priority.

Setup Prompt Timeout

This shows the number of seconds to wait for setup activation key.

65535(0xFFFF) means inde nite waiting.

Bootup Num-Lock

If this item is set to [On], it will automatically activate the Numeric Lock

function after boot-up.

Full Screen Logo

Use this item to enable or disable OEM Logo. The default value is [Enabled].

AddOn ROM Display

Use this option to adjust AddOn ROM Display. If you enable the option “Full

Screen Logo” but you want to see the AddOn ROM information when the

system boots, please select [Enabled]. Con guration options: [Enabled]

and [Disabled]. The default value is [Enabled].

Boot Failure Guard

Enable or disable the feature of Boot Failure Guard.

Boot Failure Guard Count

Enable or disable the feature of Boot Failure Guard Count.

Boot From Onboard LAN

Use this item to enable or disable the Boot From Onboard LAN feature.

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3.7 Security Screen

In this section, you may set or change the supervisor/user password for the system.

For the user password, you may also clear it.

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3.8 Exit Screen

Save Changes and Exit

When you select this option, it will pop-out the following message, “Save

con guration changes and exit setup?” Select [Yes] to save the changes

and exit the UEFI SETUP UTILITY.

Discard Changes and Exit

When you select this option, it will pop-out the following message, “Discard

changes and exit setup?” Select [Yes] to exit the UEFI SETUP UTILITY

without saving any changes.

Discard Changes

When you select this option, it will pop-out the following message, “Discard

changes?” Select [Yes] to discard all changes.

Load UEFI Defaults

Load UEFI default values for all the setup questions. F9 key can be used

for this operation.

Launch EFI Shell from fi lesystem device

Attempts to Launch EFI Shell application (Shell64.efi) from one of the

available lesystem devices.

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