Gigabyte 5AX User Manual page 83

Slave PIO (for onboard IDE 1st channel).
The default value is Auto.
Auto BIOS will automatically detect the IDE HDD Accessing
mode.
Mode0~4 Manually set the IDE Accessing mode.
Master Ultra DMA (for onboard IDE 1sd channel).
The default value is Auto.
Auto BIOS will automatically detect the IDE HDD Accessing
mode.
Disabled Disable UDMA function.
Slave Ultra DMA (for onboard IDE 1sd channel).
The default value is Auto.
Auto BIOS will automatically detect the IDE HDD Accessing
mode.
Disabled Disable UDMA function.
On-Chip Secondary IDE
The default value is Enabled.
Enabled Enable onboard 2nd channel IDE port.
Disabled Disable onboard 2nd channel IDE port.
Master PIO (for onboard IDE 2nd channel).
The default value is Auto.
Auto BIOS will automatically detect the IDE HDD Accessing
mode.
Mode0~4 Manually set the IDE Accessing mode.
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BIOS Configuration