Instruction Manual
Table Of Contents
- Contents
- Chapter 1 Product introduction
- Chapter 2 BIOS setup
- 2.1 Managing and updating your BIOS
- 2.2 BIOS setup program
- 2.3 Main menu
- 2.4 Ai Tweaker menu
- 2.4.1 AI Overclocking [Auto]
- 2.4.2 DRAM Frequency Control [Auto]
- 2.4.3 HT Link Speed [Auto]
- 2.4.4 CPU Voltage [Auto]
- 2.4.5 CPU/NB Voltage [Auto]
- 2.4.6 CPU VDDA Voltage [Auto]
- 2.4.7 DRAM Voltage [Auto]
- 2.4.8 HT Voltage [Auto]
- 2.4.9 NB Voltage [Auto]
- 2.4.10 CPU/LDT Spread Spectrum [Disabled]
- 2.4.11 PCIE Spread Spectrum [Disabled]
- 2.4.12 SATA Spread Spectrum [Disabled]
- 2.4.13 PCI Spread Spectrum [Disabled]
- 2.5 Advanced menu
- 2.6 Power menu
- 2.7 Boot menu
- 2.8 Tools menu
- 2.9 Exit menu

Chapter 2: BIOS setup 2-21
2.5.4 PCIPnP
The PCIPnP menu items allow you to change the advanced settings for PCI/PnP devices.
Plug And Play O/S [No]
When set to [Yes] and if you install a Plug and Play operating system, the operating
system congures the Plug and Play devices not required for boot. When set to [No], BIOS
congures all the devices in the system.
2.5.5 USB Conguration
The items in this menu allows you to change the USB-related features. Select an item then
press <Enter> to display the conguration options.
The Module Version and USB Devices Enabled items show the auto-detected values. If
no USB device is detected, the item shows None.
USB Functions [Enabled]
Allows you to enable or disable the USB Functions.
Conguration options: [Enabled] [Disabled]
USB 2.0 Controller [Enabled]
Allows you to enable or disable the USB 2.0 controller.
Conguration options: [Enabled] [Disabled]
Legacy USB Support [Auto]
Allows you to enable or disable support for USB devices on legacy operating systems
(OS). Setting to Auto allows the system to detect the presence of USB devices at startup.
If detected, the USB controller legacy mode is enabled. If no USB device is detected, the
legacy USB support is disabled.
Conguration options: [Disabled] [Enabled] [Auto]
USB 2.0 Controller Mode [HiSpeed]
Allows you to congure the USB 2.0 controller in HiSpeed (480 Mbps) or Full Speed (12
Mbps). Conguration options: [FullSpeed] [HiSpeed]
USB Mass Storage Device Conguration
The USB Mass Storage Device Conguration item appears only when there are installed
USB devices.
USB Mass Storage Reset Delay [20 Sec]
Allows you to select the number of seconds POST waits for the USB mass storage
device after the start unit command. The message “No USB mass storage device
detected” appears if none is installed in the system.
Conguration options: [10 Sec] [20 Sec] [30 Sec] [40 Sec]
Emulation Type [Auto]
If set to [Auto], USB devices of less than 530MB will be emulated as Floppy, and the remaing
drives as hard drives. The [Force FDD] option can be used to force a HDD formatted drive to
boot as FDD, ex. ZIP drive.
Conguration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CDROM]