Asus P5QC - Manual (Page 94)

3-26 Chapter 3: BIOS setup
Serial Port1 Address [3F8/IRQ4]
Allows you to select the Serial Port1 base address.
Configuration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]
3.5.4 USB Configuration
The items in this menu allows you to change the USB-related features. Select an
item then press to display the configuration options.
Select Screen
Select Item
+-
Change Option
F1 General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2008, American Megatrends, Inc.
USB Configuration
USB Devices Enabled:
1 Mouse
USB Functions [Enabled]
USB 2.0 Controller [Enabled]
USB 2.0 Controller Mode [HiSpeed]
BIOS EHCI Hand-off [Enabled]
Legacy USB Support [Auto]
Options
Disabled
Enabled
BIOS SETUP UTILITY
Advanced
The USB Devices Enabled item shows 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 Host Controllers.
Configuration options: [Disabled] [Enabled]
The following items appear only when you set USB Functions to [Enabled].
USB 2.0 Controller [Enabled]
Allows you to enable or disable the USB 2.0 controller.
Configuration options: [Enabled] [Disabled]
USB 2.0 Controller Mode [HiSpeed]
Allows you to set the USB 2.0 controller mode to HiSpeed (480 Mbps) or
FullSpeed (12 Mbps).
Configuration options: [FullSpeed] [HiSpeed]
The USB 2.0 Controller Mode item appears only when you enable the USB
2.0 Controller.