P5SD-B
User’s Manual
4:
Reference Information – 4.38
IDE HDD Block Mode
Enables or disables hard disk drive block transfer mode. Block
transfer mode is faster and is supported by most IDE drives. The
default setting is Enabled.
Primary/Secondary PCI/IDE
Enables or Disables the Primary or Secondary PCI controllers
or both. Selecting “Disabled” releases IRQ14.
IDE Primary/Secondary Master/ Slave PIO
These four lines set the hard disk PIO transfer mode, which
affects the hard disk data transfer rate. The system will auto-
detect the PIO mode of a device in any of these positions when
they are set to ‘Auto’, the recommended setting. Alternatively,
you can set the mode manually. Modes 0 to 4 are supported.
Primary/Master Master/Slave Ultra DMA
These four lines enable hard disk UltraDMA transfer mode,
which requires a drive that supports this data transfer method.
The system will auto-detect an UltraDMA device in any of these
four positions when they are set to ‘Auto’, the recommended
setting. The other setting is ‘Disabled’. You can leave these set to
Auto without effect if there are no UltraDMA devices installed.
IDE Burst Mode & IDE Data Port Post Write
The IDE Burst Mode and IDE Data Port Post Write lines are
set to Enabled. These are required defaults for this mainboard.
Onboard FDD Controller
Enables or Disables the onboard Floppy Drive controller.