283-7-1 OnChip IDE DeviceCMOS Setup Utility – Copyright(C) 1984-2004 Award SoftwareOnChip IDE DeviceItem HelpOnChip IDE Channel0 EnabledOnChip IDE Channel1 EnabledPrimary Master PIO AutoPrimary Slave PIO AutoSecondary Master PIO AutoSecondary Slave PIO AutoPrimary Master UDMA AutoPrimary Slave UDMA AutoSecondary Master UDMA AutoSecondary Slave UDMA AutoIDE Prefetch Mode DisabledIDE HDD Block Mode EnabledDelay For HDD (Secs) 0Menu Level >>↑↓→← Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General HelpF5:Previous Values F6:Optimized Defaults F7:Standard DefaultsOnChip IDE Channal0/Channel1The 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 PIOThe four IDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-4) for each of thefour IDE devices that the onboard IDE interface supports. Modes 0 through 4 providesuccessively increased performance. In Auto mode, the system automatically determines the bestmode for each device. The settings are: Auto, Mode 0, Mode 1, Mode 2, Mode 3, Mode 4.Primary/Secondary Master/Slave UDMAUltra DMA/33 implementation is possible only if your IDE hard drive supports it and theoperating environment includes a DMA driver (Windows 95 OSR2 or a third-party IDE busmaster driver). If your hard drive and your system software both support Ultra DMA/33 andUltra DMA/66, select Auto to enable BIOS support. The settings are: Auto, Disabled.IDE HDD Block ModeBlock mode is also called block transfer, multiple commands, or multiple sector read/write. Ifyour IDE hard drive supports block mode (most new drives do), select Enabled for automaticdetection of the optimal number of block read/writes per sector the drive can support. Thesettings are: Enabled, Disabled.