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BIOS SETUP
MB820 User’s Manual
41
Phoenix - AwardBIOS CMOS Setup Utility
SuperIO Device
Onboard FDC Controller
Enabled
ITEM HELP
Onboard Serial Port 1
3F8/IRQ4
Menu Level
Onboard Serial Port 2
2F8/IRQ3
UART Mode Select
Normal
RxD , TxD Active
Hi, Lo
IR Transmission Delay
Enabled
UR2 Duplex Mode
Half
Use IR Pins
IR-Rx2Tx2
Onboard Parallel Port
378/IRQ7
Parallel Port Mode
SPP
EPP Mode Select
EPP1.7
ECP Mode Use DMA
3
Onboard Serial Port 3
3E8H
Serial Port 3 Use IRQ
IRQ5
Onboard Serial Port 4
Disabled
Serial Port 4 Use IRQ
IRQ10
Chip Select Pin
Disabled
IDE HDD Block Mode
This field allows your hard disk controller to use the fast block mode to
transfer data to and from your hard disk drive.
IDE DMA Transfer Access
Allows IDE transfer to be done in DMA mode
OnChip 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.
IDE Primary/Secondary Master/Slave PIO
These fields allow your system hard disk controller to work faster.
Rather than have the BIOS issue a series of commands that transfer to or
from the disk drive, PIO (Programmed Input/Output) allows the BIOS to
communicate with the controller and CPU directly.
The system supports five modes, numbered from 0 (default) to 4, which
primarily differ in timing. When Auto is selected, the BIOS will select
the best available mode.
IDE Primary/Secondary Master/Slave UDMA
These fields allow your system to improve disk I/O throughput to
33Mb/sec with the Ultra DMA/33 feature. The options are
Auto
and
Disabled
.