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ESM-2740/2743
60 ESM-2740/2743 User’s Manual
3.5.4.1.3 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 choice: Auto, Mode 0, Mode 1, Mode 2, Mode 3, or Mode 4.
3.5.4.1.4 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,
select Auto to enable BIOS support.
The Choice: Auto, Disabled.
3.5.4.1.5 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 Choice: Enabled, Disabled.
3.5.4.2 Onboard Device
3.5.4.2.1 USB / USB 2.0 Controller
This item allows you to set the USB / USB 2.0 Controller to Enabled/Disabled.
The choice: Enabled, Disabled