IWILL P55XPLUS, Руководство пользователя

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IDE PIO
IDE hard drive controllers can support up to two separate hard drives. These drives
have a master/slave relationship which are determined by the cabling configuration used
to attach them to the controller. Your system supports two IDE 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 four setup items:
1. IDE Prima ry Ma ster PIO
2. IDE Prima ry Sla ve PIO
3. IDE Seconda ry Ma ster PIO
4. IDE Seconda ry Sla ve PIO
On-Chip Primary PCI IDE
As stated above, your system includes two built-in IDE controllers, both of which
operate on the PCI bus. This setup item allows you either to enable or disable the
primary controller. You might choose to disable the controller if you were to add a
higher performance or specialized controller.
Enabled Primary HDD controller used -- Default
Disabled Primary HDD controller not used.
On-Chip Secondary PCI IDE
As above for the Primary controller, this setup item you either to enable or disable the
secondary controller. You might choose to disable the controller if you were to add a
higher performance or specialized controller.
Enabled Primary HDD controller used
Disabled Primary HDD controller not used.
Enabled is the default.