Computer Hardware User's Manual

BIOS SETUP 32
3.8 Integrated Peripherals
This option will load the default BIOS values. Choose the option and the following message
appears.
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• IDE HDD Block Mode
The item means HDD access uses over one cycle method for improving HDD performance.
If the HDD supports this function, choose” Enabled”.
• IDE Primary/Secondary Master/Slave PIO
The four IDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-4) 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.
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• IDE Primary/Secondary Master/Slave Ultra DMA
Ultra DMA/33 implementation is possible only if your IDE hard drive can support and the
operating environment includes a DMA driver (Windows 95 OSR2 or a third-party IDE bus
master driver). If your hard disk drive and your system software can both support Ultra DMA/
33, select “Auto” to enable BIOS support.