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IDE PIO
IDE ha rd drive controllers ca n support up to two sepa ra te ha rd drives. These
drives ha ve a ma ster/sla ve rela tionship which a re determined by the ca bling
configura tion used to a tta ch them to the controller. Your system supports two
IDE controllers--a prima ry a nd a seconda ry--so you ha ve to a bility to insta ll up to
four sepa ra te ha rd disks.
PIO mea ns Progra mmed Input/ Output. Ra ther tha n ha ve the BIOS issue a series
of comma nds to effect a tra nsfer to or from the disk drive, PIO a llows the BIOS
to tell the controller wha t it wa nts a nd then let the controller a nd the CPU perform
the complete ta sk by themselves. This simpler a nd more efficient (a nd fa ster).
Your system supports five modes, numbered from 0 (defa ult) to 4, which
prima rily differ in timing. When
Auto
is selected, the BIOS will select the best
a va ila ble 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
As sta ted a bove, your system includes two built-in IDE controllers, both of which
opera te on the PCI bus. This setup item a llows you either to ena ble or disa ble the
prima ry controller. You might choose to disa ble the controller if you were to a dd
a higher performa nce or specia lized controller.
Enabled
Primary HDD controller used -- Default
Disabled
Primary HDD controller not used.
As a bove for the Prima ry controller, this setup item you either to ena ble or
disa ble the seconda ry controller. You might choose to disa ble the controller if
you were to a dd a higher performa nce or specia lized controller.
On-Chip Primary PCI
IDE
On-Chip Secondary
PCI IDE
