Ide Primary Master/Slave Pio/Udma Mode, Ide Secondary Master/Slave Pio/Udma Mode (Auto); Init Display First; Ide Hdd Block Mode - Advantech PCA-6277V-00A1 Manual

3.6.2 IDE Primary Master/Slave PIO/UDMA Mode,
IDE Secondary Master/Slave PIO/UDMA Mode (Auto)
Each channel (Primary and Secondary) has both a master and a slave,
making four IDE devices possible. Because each IDE device may have
a different Mode timing (0, 1, 2, 3, 4), it is necessary for these to be
independent. The default setting "Auto" will allow autodetection to
ensure optimal performance.
Figure 3-7: Integrated peripherals (1)

3.6.3 Init Display First

This item allows you to choose which one to activate first, PCI Slot or
AGP. The choices: PCI Slot, AGP.

3.6.4 IDE HDD Block Mode

You can enable the Primary IDE channel and/or the Secondary IDE
channel. Any channel not enabled is disabled. This field is for systems
with only SCSI drives.
Chapter 3 Award BIOS Setup 49