Nexcom Peak 550 User Manual page 51

Peak 550 User's Guide
controllers--a primary and a secondary--so you have to ability to install up to four
separate hard disks.
PIO means Programmed Input/Output. Rather than have the BIOS issue a series of
commands to effect a transfer to or from the disk drive, PIO allows the BIOS to tell
the controller what it wants and then let the controller and the CPU perform the
complete task by themselves. This simpler and more efficient (and faster).
Your 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. This is true for the next two setup items:
1. IDE Primary Master PIO
2. IDE Primary Slave PIO
On board FDC Controller: Enabled, no jumper setting is required
On board UART 1
On board UART 2
The on board SIO 1 and SIO 2 could be set as below:
COM 1
COM 2
COM 3
COM 4
Disabled
Different port requires different address to avoid conflicts.
On board Parallel Port
The on board PIO could be set as below:
278H/IRQ5
378H/IRQ5
378H/IRQ7
3BCH/IRQ7
Disabled
BIOS Setup
3F8H
2F8H
3E8H
2E8H
Default
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