BIOS SETUP
TF-486 / 40
On-Chip Local Bus IDE : The integrated peripheral controller contains a IDE interface
with support for two IDE channels. Select Enabled to active the IDE interface.
IDE Buffer for DOS & Win :
Select Enabled to increase throughput to and from IDE
devices by using the on-chip read-ahead and posted-write IDE buffers. Note that use of
the buffers may cause some slow IDE devices to be even slower. When in doubt,
experiment with this setting for optimal performance and data integrtiy.
The 2nd channel IDE :
You may separately disable the second IDE channel on the
integrated peripherals controller.
IDE HDD Block Mode :
Block mode is also called block transfer, multiple commands,
or multiple commands, or multiple sector read/write. If your IDE hard drive supports
block mode (most new drives do), select Enable for automatic detection of the optimal
number of block read/writes per sector the drive can support.
IDE Primary / Secondary Master / Slave PIO :
The four IDE PIO (Programmed
Input/Output) fields let you set a PIO mode (0-4) for each of the four IDE devices that the
onboard IDE interface supports. Modes 0 through 4 provide successively increased
performance. In Auto mode, the system automatically determines the best mode of
each device.
Onboard FDC Controller :
The default setting is “Enabled”. This option enables the
onboard FDD controller.
Onboard Parallel Mode :
There are four options “Normal” (default),“ECP”,
“ECP/EPP”and “EPP/SPP”. Change the mode from “Normal” to the enhanced mode only
if your peripheral device can support it . When set to ECP mode, the printer port always
use DMA3.