The default setting “Auto” will allow auto detection to ensure optimal performance.

4.6.2 On-Chip Primary/Secondary PCI IDE

If you enable IDE HDD Block Mode, the enhanced IDE driver will be enabled. Leave IDE HDD Block Mode on the default setting.

Figure 4.7: On Chip IDE Device

4.6.3 IDE HDD Block Mode

You can enable the Primary IDE channel and/or the Secondary IDE chan- nel. Any channel not enabled is disabled. This field is for systems with only SCSI drives.

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Advantech ARK-7480 manual On-Chip Primary/Secondary PCI IDE, IDE HDD Block Mode