Chapter 6 BIOS Configuration
46
AI5VP/AI5VPB User’s Manual
IDE Primary Master/Slave PIO And 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 Master/Slave UDMA And Secondary
Master/Slave UDMA
This field allows your system to improve disk I/O throughput to 33Mb/sec
with the Ultra DMA/33 feature. The options are
Auto
and
Disabled
.
Onboard FDD Controller
This option allows you to select the onboard FDD port.
Onboard Serial/Parallel Port
These fields allow you to select the onboard serial and parallel ports and
their addresses. The default value for these ports are:
Serial Port 1
3F8/IRQ4
Serial Port 2
2F8/IRQ3
Parallel
Port
378H/IRQ7
UART 2 Mode
This field determines the UART 2 mode in your computer. The options are
Standard
,
HPSIR
, and
ASKIR
.
Onboard Parallel Mode
This field allows you to determine parallel port mode function.
SPP
Normal Printer Port
EPP
Enhanced Parallel Port
ECP
Extended Capabilities Port
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