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ASUS P2E-M User’s Manual48
IV. BIOS SOFTWARE
Parallel Port Mode (ECP+EPP)
This field allows you to set the operation mode of the parallel port. The setting
Normal, allows normal-speed operation but in one direction only; EPP allows bidi-
rectional parallel port operation at maximum speed; ECP allows the parallel port to
operate in bidirectional mode and at a speed faster than the maximum data transfer
rate; ECP+EPP allows normal speed operation in a two-way mode.
ECP DMA Select (3)
This selection is available only if you select ECP or ECP+EPP in the
Parallel Port Mode. Select either DMA Channel 1, 3, or Disable.
UART2 Use Infrared (Disabled)
When enabled, this field activates the onboard infrared feature and sets the second
serial UART to support the infrared module connector on the motherboard. If your
system already has a second serial port connected to the onboard COM2 connector, it
will no longer work if you enable the infrared feature. By default, this field is set to
Disabled, which leaves the second serial port UART to support the COM2 serial port
connector. See IrDA-compliant infrared module connector under section III.
Onboard PCI IDE Enable (Both)
You can select to enable the primary IDE channel, secondary IDE channel, both, or
disable both channels (for systems with only SCSI drives).
IDE Ultra DMA Mode (Auto)
Leave this on Auto or set to Disable to turn off IDE Ultra DMA Mode.
IDE 0 Master/Slave PIO/DMA Mode, IDE 1 Master/Slave PIO/DMA Mode (Auto)
Each channel (0 &1) has both a master and a slave making four IDE devices possible.
Because each IDE device may have a different PIO Mode timing of 0, 1, 2, 3, or 4, it
is necessary for these to be independent. DMA Mode timing allows 0, 1, or 2. The
default setting of Auto will allow auto-detection to ensure optimal performance.
IV. BIOS
Chipset Features