Figure 4.7 Onchip Ide Device - Advantech ARK-3384 Series User Manual

4.6.2.1 On-Chip Primary PCI IDE and On-Chip Secondary PCI
IDE
These fields allow you to enable or disable the primary and secondary
IDE controller. The default is Enabled. Select Disabled if you want to add
a different hard drive controller.
4.6.2.2 IDE Primary Master/Slave PIO and IDE Secondary Mas-
ter PIO
PIO means Programmed Input/Output. Rather than have the BIOS issue a
series of commands to affect a transfer to or from the disk drive, PIO
allows the BIOS to tell the controller what it wants and then lets the con-
troller and the CPU perform the complete task by itself. Your system sup-
ports five modes, 0 (default) to 4, which primarily differ in timing. When
Auto is selected, the BIOS will select the best available mode after check-
ing your drive.
Auto: The BIOS will automatically set the system according to your hard
disk drive's timing. Mode 0-4 You can select a mode that
matches your hard disk.
Mode 0-4:You can select a mode that matches your hard disk drive's tim-
ing. Caution Do not use the wrong setting or you will have drive
errors.
Figure 4.7: OnChip IDE Device
41 Chapter 4