NEXCOM NEX 852VL2 - Manual (Page 49)

IDE Primary/Secondary Master/Slave PIO
The four IDE PIC (Programmable Input/Output) fields let you set a PIC 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 are: Auto, Mode 0, Mode 1, Mode 2, Mode 3, and Mode 4.
IDE Primary/Secondary Master/Slave UDMA
Ultra DMA 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, select Auto to enable BIOS support. The choices are Auto, and
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 optional
number of block read/write per sector the drive can support. The available choices are Enabled, Disabled.
Press <ESC> to go back to Integrated Peripherals BIOS page when you finish setting up the above items.
Select this item to setup the onboard device features. When you select this item, the following menu
shows:
Onboard device
Figure 4-7: BIOS – Onboard Device
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