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CMOS Setup Utility – Copyright(C) 1984-2003 Award Software
OnChip IDE Function
Item Help
OnChip IDE Channel0 Enabled
OnChip IDE Channel1 Enabled
Primary Master PIO Auto
Pri ma ry Sl av e P IO Auto
Secondary Master PIO Auto
Secondary Slave PIO Auto
Primary Master UDMA Auto
Pri ma ry Sl av e U DMA Auto
Secondary Master UDMA Auto
Secondary Slave UDMA Auto
IDE 32-bit Transfer Mode Enabled
IDE Prefetch Mode Enabled
IDE HDD Block Mode Enabled
Delay For HDD (Secs) 0
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OnChip IDE Channal0/Channel1
The integrated peripheral controller contains an IDE interface with support for two IDE channels.
Select Enabled to activate each channel separately. The settings are: Enabled and Disabled.
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. The settings are: Auto, Mode 0, Mode 1, Mode 2, Mode 3, Mode 4.
Primary/Secondary Master/Slave UDMA
Ultra DMA/33 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 system software both support Ultra DMA/33 and
Ultra DMA/66, select Auto to enable BIOS support. The settings are: Auto, Disabled.
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), select Enabled for automatic
detection of the optimal number of block read/writes per sector the drive can support. The
settings are: Enabled, Disabled.