Asus P1-AH1 - Manual (Page 80)

5-20 Chapter 5: BIOS setup
SATA Port 1, 2 [Enabled]
Allows you to enable or disable the Serial ATA 1 and 2 ports.
Configuration options: [Enabled] [Disabled]
SATA DMA transfer [Enabled]
Allows you to enable or disable the Serial ATA DMA transfer access.
Configuration options: [Enabled] [Disabled]
IDE Prefetch Mode [Enabled]
Allows you to enable or disable the IDE PIO read prefetch mode. When
set to [Enabled], either 16-bit or 32-bit is allowed on the IDE bus; however,
all subsequent reads must follow the same size made in the first read of a
sector. Configuration options: [Enabled] [Disabled]
USB configuration
USB Controller [Enabled]
USB 2.0 Controller [Enabled]
USB Legacy Support [Enabled]
USB Configuration
USB Controller [Enabled]
Allows you to enable or disable the USB controller.
Configuration options: [Disabled] [Enabled]
USB 2.0 Controller [Enabled]
Allows you to enable or disable the USB 2.0 controller.
Configuration options: [Disabled] [Enabled]
USB Legacy Support [Enabled]
Allows you to enable or disable support for legacy USB devices.
Configuration options: [Disabled] [Enabled]
Select Menu
Item Specific Help
Enable or Disable
USB 1.1 and 2.0
controller.