Acer 500L User Manual
Page 65
Chapter 3 BIOS Utility
3-19
Onboard Device Settings
Floppy Disk Controller .............. [Enabled ]
IDE Controller ...................... [Both ]
PS/2 Mouse Controller ............... [Enabled ]
USB Host Controller ................. [Disabled]
USB Legacy Mode ................... [--------]
SMBus Interrupt(IRQ9) ............... [Disabled]
Floppy Disk Controller
This parameter lets you enable or disable the onboard floppy disk
controller.
IDE Controller
Set this parameter to
Primary
to enable only the primary IDE
controller;
Both
to enable both primary and secondary IDE
controllers; or
Disabled
to disable all IDE controllers.
PS/2 Mouse Controller
This parameter enables or disables the onboard PS/2 mouse
controller.
USB Host Controller
This parameter lets you enable or disable the USB controller on board.
When enabled, it activates the USB function of the system. When
disabled, it deactivates the function.
USB Legacy Mode
This function, when enabled, lets you use a USB keyboard in DOS.
Set this to
Disabled
to deactivate the USB keyboard function in DOS.