Asus Z97-A 2.6.6Platform Misc Configuration

EHCI Hand-off [Disabled]

[Enabled]	Enables the support for operating systems without an EHCI hand‑off
	feature.
[Disabled]	Disables the EHCI Hand-off support.

Mass Storage Devices [Auto]

This item allows your system to detect the devices according to their media formats. Configuration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CD-ROM]

USB Single Port Control

This item allows you to enable or disable the individual USB ports.

Refer to section 1.2.3 Motherboard layout for the location of the USB ports.

2.6.6Platform Misc Configuration

The items in this menu allow you to configure the platform-related features.

PCIE Native Power Management [Disabled]

This item allows you to enhance the power saving feature of PCI Express and perform ASPM operations in the operating system.

Configuration options: [Disabled] [Enabled]

The following item appears only when you set the PCI Express Native Power Management to [Enabled].

Native ASPM [Disabled]

[Enabled]	Windows® Vista OS controls the ASPM (active state power
	management) support for devices.
[Disabled]	BIOS controls the ASPM support for the device.

PCI Power Management [Auto]

This item allows you to set a power saving condition.

[Auto]	Select this option to automatically adjust the system power. We
	recommend you to select this option.
[Aggressive]	Select this option to set to aggressive power saving conditions.

PCH - PCI Express options

DMI Link ASPM Control [Disabled]

This item allows you to control the Active State Power Management on both NB (NorthBridge) side and SB (SouthBridge) side of the DMI Link.

Configuration options: [Disabled] [Enabled]

ASUS Z97-A

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Contents

Page Page Contents Electrical safety Operation safety How this guide is organized Where to find more information Conventions used in this guide Typography Package contents Z97-Aspecifications summary Page Page Page Page 1.2.1Placement direction 1.2.2Screw holes 1.2.3Motherboard layout 1.2.4Layout contents 1.3Central Processing Unit (CPU) 1.3.1Installing the CPU 1.3.2CPU heatsink and fan assembly installation 1.4.1Overview 1.4.2Memory configurations Page Page Page Page Page Page Page Page Page Page 1.4.3DIMM installation 1.5.1Installing an expansion card 1.5.2Configuring an expansion card 1.5.3PCI slots 1.5.4PCI Express 2.0 x1 slots 1.5.5PCI Express 3.0 / 2.0 x16 slots Page 1.6Jumpers Page 1.7.1Rear panel connectors Page 1.7.2Internal connectors Page Page Page Page Page Page Page Page 1.8Onboard LEDs Page 1.9Onboard buttons and switches Page Page Page 1.10.1Installing an operating system 1.10.2Support DVD information 2.1Managing and updating your BIOS 2.1.1EZ Update 2.1.2ASUS EZ Flash 2.1.3ASUS CrashFree BIOS 3 utility 2.1.4ASUS BIOS Updater Please select boot device: Page BIOS menu screen 2.2.1EZ Mode 2.2.2Advanced Mode Page Page 2.2.3QFan Control 2.2.4EZ Tuning Wizard Page 2.3My Favorites 2.4.1Security Page 2.5.1Ai Overclock Tuner [Auto] 2.5.2ASUS MultiCore Enhancement [Auto] 2.5.3CPU Core Ratio [Sync All Cores] 2.5.4Min. CPU Cache Ratio [Auto] 2.5.5Max. CPU Cache Ratio [Auto] 2.5.6Internal PLL Overvoltage [Auto] 2.5.7CPU Ratio Tuner [Auto] 2.5.8BCLK Frequency: DRAM Frequency Ratio [Auto] 2.5.9DRAM Frequency [Auto] 2.5.10Max. CPU Graphics Ratio [Auto] 2.5.11OC Tuner [Keep Current Settings] 2.5.12EPU Power Saving Mode [Disabled] 2.5.13DRAM Timing Control Page Page Page 2.5.14DIGI+ VRM Page 2.5.15Internal CPU Power Management Page 2.5.16Extreme Over-voltage 2.5.17CPU Core Voltage 2.5.18CPU Cache Voltage [Auto] 2.5.19CPU System Agent Voltage Offset Mode Sign [+] 2.5.20CPU Analog I/O Voltage Offset Mode Sign [+] 2.5.21CPU Digital I/O Voltage Offset Mode Sign [+] 2.5.22SVID Support [Auto] 2.5.23CPU Input Voltage [Auto] 2.5.24DRAM Voltage [Auto] 2.5.25PCH Core Voltage [Auto] 2.5.26PCH VLX Voltage [Auto] 2.5.27VTTDDR Voltage [Auto] 2.5.28DRAM CTRL REF Voltage [Auto] 2.5.29DRAM DATA REF Voltage on CHA/CHB [Auto] 2.5.31Clock Crossing Reset Voltage [Auto] 2.5.32Clock Crossing Voltage [Auto] 2.5.33CPU Spread Spectrum [Auto] 2.6.1CPU Configuration Page 2.6.2PCH Configuration 2.6.3PCH Storage Configuration 2.6.4System Agent Configuration 2.6.5USB Configuration 2.6.6Platform Misc Configuration 2.6.7Onboard Devices Configuration 2.6.8APM Configuration 2.6.9Network Stack Configuration 2.6.10Intel(R) Rapid Storage Technology 2.7.1Qfan Tuning 2.7.4CPU Core 0/3 Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage 2.7.5CPU Q-FanControl [Auto] 2.7.6Chassis Fan 1/4 Q-FanControl 1/4 [Enabled] Page 2.8.1Fast Boot [Enabled] 2.8.2DirectKey (DRCT) [Enabled] 2.8.3Boot Logo Display [Auto] 2.8.4Bootup NumLock State [Enabled] 2.8.5Wait For ‘F1’ If Error [Enabled] 2.8.6Option ROM Messages [Enabled] 2.8.7Interrupt 19 Capture [Disabled] 2.8.8Above 4G Decoding [Disabled] 2.8.11Secure Boot Page 2.8.12Boot Option Priorities 2.8.13Boot Override 2.9.1Setup Animator 2.9.2ASUS EZ Flash 2 Utility 2.9.3ASUS O.C. Profile 2.9.4ASUS DRAM SPD Information 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 Google™ License Terms ASUSTeK COMPUTER INC ASUS COMPUTER INTERNATIONAL (America) ASUS COMPUTER GmbH (Germany and Austria)