Slave Drive PIO Mode

Common Options : Auto, 0, 1, 2, 3, 4

Quick Review

This BIOS feature allows you to set the PIO (Programmed Input/Output) mode for the Slave IDE drive attached to that particular IDE channel.

Setting this BIOS feature to Auto lets the BIOS auto-detect the IDE drive's maximum supported PIO mode at boot-up.

Setting this BIOS feature to 0 forces the BIOS to use PIO Mode 0 for the IDE drive.

Setting this BIOS feature to 1 forces the BIOS to use PIO Mode 1 for the IDE drive.

Setting this BIOS feature to 2 forces the BIOS to use PIO Mode 2 for the IDE drive.

Setting this BIOS feature to 3 forces the BIOS to use PIO Mode 3 for the IDE drive.

Setting this BIOS feature to 4 forces the BIOS to use PIO Mode 4 for the IDE drive.

Normally, you should leave it as Auto and let the BIOS auto-detect the IDE drive's PIO mode. You should only set it manually for the following reasons :-

• if the BIOS cannot detect the correct PIO mode.
• if you want to try forcing the IDE device to use a faster PIO mode than it was designed for.
• if you want to force the IDE device to use a slower PIO mode if it cannot work properly with the current PIO mode (i.e. when the PCI bus is overclocked)

Please note that forcing an IDE device to use a PIO transfer rate that is faster than what it is rated for can potentially cause data corruption.