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Twister LX System Board Manual
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devices that the onboard IDE interface supports. Modes
0 through 4 provide successively increased performance.
In Auto (default) mode, the system automatically deter-
mines the best mode for each device.
IDE Primary/Secondary Master/Slave UDMA
Set the UDMA (Ultra DMA/33) mode for the specified
onboard IDE interface. Ultra DMA/33 is a hard drive
interface protocol that increases the burst data transfer
rate to 33MBytes per second. NOTE: Your hard drive
and operating environment must both support the UDMA
mode.
On-Chip Primary/Secondary PCI IDE
The integrated peripheral controller contains an IDE
interface with support for two IDE channels. Select
Enabled to activate each channel separately.
USB Keyboard Support
Select Enabled if your system contains a Universal Serial
Bus (USB) controller and you have USB keyboard.
KBC Input Clock
This selection allows you to set the clock speed for the
keyboard controller. The default setting is 8MHz.
Onboard FDC Controller
Select Enabled (default) to use the floppy disk controller
installed on the system board. If you install an add-in
controller or the system has no floppy drive, select
Disabled.
Chapter 4: The BIOS Setup Utility