Ide Hdd Block Mode - Aaeon PCM-6894 User Manual

Primary/Secondary Master/Slave PIO
The four IDE PIO (Programmable Input/Output) fields let you set a
PIO mode (0-1) for each of the four IDE devices that the onboard
IDE interface supports. Modes 0 through 4 provide successively
increased performance. In Auto mode, the system automatically
determines the best mode for each device.
The choices: Auto, Mode 0, Mode 1, Mode 2, Mode 3, Mode 4
Primary/Secondary Master/Slave UDMA
Ultra DMA33/66 implementation is possible only if your IDE hard
drive supports it and the operating environment includes a DMA
driver (Windows 95 OSR2 or a third-party IDE bus master driver). If
your hard drive and your IDE Cable both support Ultra DMA 33/66
select Auto to enable BIOS support.
The choices: Auto, Disable.

IDE HDD Block Mode

Block mode is also called "block transfer", "multiple commands", or
"multiple sector read/write". If your IDE hard drive supports block
mode (most new drives do), please select "Enabled" for automatic
detection of the optimal number of block read/writes per sector the
drive can support.
The choices: Enabled, Disabled.
Onboard FDD Controller
Select Enabled if your system has a floppy disk controller (FDC)
installed on the system board and you wish to use it. If you install
an add-in FDC or the system has no floppy drive, select Disabled in
this field.
The choices: Disabled, Enabled.
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