OnChip IDE Channel 1
Common Options : Enabled, Disabled
Quick Review
The IDE controller that is integrated into most motherboard chipsets usually comes with two IDE channels, each of which supports up to two IDE drives. Therefore, such IDE controllers support a total of four IDE devices through two IDE channels.
This BIOS feature controls only the second IDE channel (IDE Channel 1) of the chipset's IDE controller.
When enabled, the second IDE channel is enabled, providing support for up to two IDE drives.
When disabled, the second IDE channel will be disabled. Any attached IDE drives will not be accessible. However, this frees up an IRQ, which can be used by other devices. Disabling this IDE channel will also speed up the booting sequence a little as the BIOS will not need to query this channel for IDE devices when it boots up.
You should leave this enabled if you are using this IDE channel. Disabling it will prevent any IDE devices attached to this channel from being accessed.
If you are not attaching any IDE devices to this IDE channel (or if you are using a SCSI / an add-on IDE card), you can disable this IDE channel to free an IRQ and speed up the booting sequence.
Click here to find out how you can do that now!
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