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Asus F2A55 2.7.6Option ROM Messages [Force BIOS], 2.7.7Next boot after AC Power Loss [Normal Boot], 2.7.8CSM Parameters, 2.7.9Security Boot parameters

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2.7.6Option ROM Messages [Force BIOS]

[Force BIOS]	The third-party ROM messages will be forced to display during the boot
	sequence.
[Keep Current]	The third-party ROM messages will be displayed only if the third-party
	manufacturer had set the add-on device to do so.

2.7.7Next boot after AC Power Loss [Normal Boot]

[Normal Boot]	Returns to normal boot on the next boot after an AC power loss.
[Fast Boot]	Accelerates the boot speed on the next boot after an AC power loss.

2.7.8CSM Parameters

This option controls whether or not CSM (Compatibility Support Module) will be launched.

Launch CSM [Auto]

Configuration option: [Auto] [Enabled] [Disabled]

The following four items appear only when you set Launch CSM to [Enabled].

Boot Device Control [UEFI and Legacy OpROM]

Configuration option: [UEFI and Legacy OpRom] [Legacy OpROM only] [UEFI only]

Boot from Network Devices [Legacy OpROM first]

Configuration option: [Legacy OpROM first] [UEFI driver first] [Ignore]

Boot from Storage Devices [Legacy OpRom first]

Configuration option: [Both, Legacy OpROM first] [Both, UEFI driver first] [Legacy OpROM first] [UEFI driver first] [Ignore]

Boot from PCIe/PCI Expansion Devices [Legacy OpROM first] Configuration option: [Legacy OpROM first] [UEFI driver first]

2.7.9Security Boot parameters

This option allows you to configure the Secure Boot related parameters.

OS Type [Other Legacy & UEFI]

Configuration option: [Windows 8 UEFI] [Other Legacy & UEFI]

Secure Boot Mode [Standard]

This item appears only when you set the OS Type to [Windows 8 UEFI]. Configuration option: [Standard] [Custom]

The following items appear when Secure Boot Mode is set to [Custom].

Key Management

Default Key Provisioning [Disabled]

Configuration options: [Enabled] [Disabled]

Chapter 2: BIOS information

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Contents

Page Page Contents Page Page Electrical safety Operation safety How this guide is organized Where to find more information Conventions used in this guide Typography F2A55 specifications summary Page Page Package contents 1.1.1Product highlights 1.1.2ASUS DIGI+ VRM 1.1.3ASUS Exclusive Features Page 1.2Before you proceed 1.3.1Placement direction 1.3.2Screw holes 1.3.3Motherboard layout 1.3.4Layout contents 1.4.1APU installation 1.4.2APU heatsink and fan assembly installation Page 1.5.1Overview 1.5.2Memory configurations Page Page Page Page Page Page 1.5.3Installing a DIMM 1.6.1Installing an expansion card 1.6.2Configuring an expansion card 1.6.3PCI slots 1.6.4PCI Express x1 slots 1.6.5PCI Express x16 slots Page 1.7Jumpers 1.8.1Rear panel ports Page 1.8.2Internal connectors Page Page Page Page Page 1.9Onboard switch 1.10Onboard LEDs 1.11.1Installing an operating system 1.11.2Support DVD information Page 2.1.1ASUS Update utility 2.1.2ASUS EZ Flash 2.1.3ASUS CrashFree BIOS 3 utility 2.1.4ASUS BIOS Updater Page BIOS menu screen Page Page Page 2.3.1System Language [English] 2.3.2System Date [Day xx/xx/xxxx] 2.3.3System Time [xx:xx:xx] 2.3.4Security Page 2.4Ai Tweaker menu 2.4.1Ai Overclock Tuner [Auto] 2.4.2Memory Frequency [Auto] 2.4.3APU Multiplier [Auto] 2.4.4NB Frequency [Auto] 2.4.5EPU Power Saving Mode [Disabled] 2.4.6OC Tuner 2.4.7DRAM Timing Control 2.4.8CPU Voltage [Offset Mode] 2.4.9DRAM Voltage [Auto] 2.4.10SB 1.1V Voltage [Auto] 2.4.12APU1.2V Voltage [Auto] 2.4.13VDDA Voltage [Auto] 2.4.14DIGI+ VRM Page 2.5.1CPU Configuration 2.5.2SATA Configuration 2.5.3USB Configuration 2.5.4NB Configuration 2.5.5Onboard Devices Configuration 2.5.6APM 2.5.7Network Stack 2.6Monitor menu 2.6.1CPU Temperature / MB Temperature [xxxºC/xxxºF] 2.6.2CPU_FAN / CHA_FAN Speed [xxxx RPM] or [Ignore] / [N/A] 2.6.3CPU_FAN Q-FanControl [Enabled] 2.6.4CHA_FAN1/2 Q-FanControl [Disabled] 2.6.5CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage 2.6.6Anti Surge Support [Enabled] 2.7.1Bootup NumLock State [On] 2.7.2Full Screen Logo [Enabled] 2.7.3Fast Boot [Enabled] 2.7.4Post Delay Time [3 sec] 2.7.5Wait for ‘F1’ If Error [Enabled] 2.7.6Option ROM Messages [Force BIOS] 2.7.7Next boot after AC Power Loss [Normal Boot] 2.7.8CSM Parameters 2.7.9Security Boot parameters Page 2.7.10Setup Mode [EZ Mode] 2.7.11Boot Option Priorities 2.7.12Boot Override 2.8.1ASUS EZ Flash 2 Utility 2.8.2ASUS SPD Information 2.8.3ASUS O.C. Profile 2.9Exit menu Page Federal Communications Commission Statement IC: Canadian Compliance Statement Canadian Department of Communications Statement VCCI: Japan Compliance Statement VCCI Class B Statement KC: Korea Warning Statement REACH ASUSTeK COMPUTER INC ASUS COMPUTER INTERNATIONAL (America) ASUS COMPUTER GmbH (Germany and Austria)