Advantech PCA-6166, User Manual

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Chapter 3 Award BIOS Setup 47
3.10.1 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.
3.10.2 IDE Burst Mode
Selecting Enabled reduces latency between each drive read/write
cycle, but may cause instability in IDE subsystems that cannot support
such fast performance. If you are getting disk drive errors, try setting
this value to Disabled. This field does not appear when the Internal
PCI/IDE field is Disabled.
3.10.3 IDE Data Port Post Write
Selecting Enabled speeds up Read and Write processing, but may
cause instability in IDE subsystems that cannot support each fast
performance. If you are getting disk drive errors, try setting this value
to Disabled.
3.10.4 IDE HDD Block Mode
If you enable IDE HDD Block Mode, the enhanced IDE driver will be
enabled. Leave IDE HDD Block Mode on the default setting.
3.10.5 Onboard FDC Controller
When enabled, this field allows you to connect your floppy disk
drives to the on-board floppy disk drive connector instead of a
separate controller card. If you want to use a different controller card
to connect the floppy disk drives, set this field to Disabled.
3.10.6 Onboard Serial Port 1 (3F8H/IRQ4)
The settings are 3F8H/IRQ4, 2F8H/IRQ3, 3E8H/IRQ4, 2E8H/IRQ10,
and Disabled for the on-board serial connector.