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Chapter 3 Award BIOS Setup 73
The displayed configuration is based on the manufacturer's SETUP
DEFAULSTS settings.
On-Chip Primary IDE
The onboard chipset contains a PCI IDE interface with support for
two IDE channels. Select Enabled to activate the primary and/or
secondary IDE interface. Select Disabled to deactivate this inter-
face, if you install a primary and/or secondary add-in IDE interface.
IDE PIO Modes (Primary Master/Slave)
The four IDE PIO (Programmed Input/Output) fields let you set a
PIO mode (0-4) for each of up to four IDE devices that the internal
PCI IDE interface supports. Modes 0 through 4 provide succes-
sively increased performance. In Auto mode, the system automati-
cally determines the best mode for each device.
IDE Primary Master/Slave UDMA
UDMA (Ultra DMA) is a DMA data transfer protocol that utilizes
ATA commands and the ATA bus to allow DMA commands to
transfer data at a maximum burst rate of 33 MB/s. When you select
Auto in the four IDE UDMA fields (for each of up to four IDE
devices that the internal PCI IDE interface supports), the system
automatically determines the optimal data transfer rate for each IDE
device.
IDE HDD Block Mode
Select Enabled only if your hard drives support block mode.
On-Chip USB controller
Select Enabled if your system contains a Universal Serial Bus
(USB) controller and you have a USB keyboard.