45
3.8.5 USB Keyboard Support
This field enables or disables the USB keyboard supported.
Options
Enabled / Disabled (*)
3.8.6 KBC clock source
Set the frequency for the keyboard controller input clock.
Options
8 MHz (*)/ 12 MHz / 16MHz.
3.8.7 Onboard FDC Controller
This field enables or disables the onboard floppy controller.
Options
Enabled (*) / Disabled
3.8.8 Onboard Serial Port 1 / 2
These fields configure the onboard serial ports. There are several port address and IRQ channels
that can be selected.
Options
Description
3F8 / IRQ 4
Port address 3F8h, IRQ 4
2F8 / IRQ 3
Port address 2F8h, IRQ 3
3E8 / IRQ 4
Port address 3E8h, IRQ 4
2E8 / IRQ 3
Port address 2E8h, IRQ 3
Auto
BIOS assigns port address and IRQ channel automatically
Disabled
Disables serial port
3.8.9 Onboard Parallel Port
This field configures the onboard parallel port. There are several port addresses and IRQ channel
that can be selected.
Options
Description
378 / IRQ 7
Port address 378h, IRQ 7
278 / IRQ 5
Port address 278h, IRQ 5
3BC / IRQ 7
Port address 3BCh, IRQ 7
Disabled
Disable parallel port
3.8.10 Parallel Port Mode
This field configures the operating mode of onboard parallel port.
Options
SPP (*) / EPP / ECP / ECP+EPP