7. BIOS Setup
60
SPC-8520-LA , SPC-8521-LA
Description Choice
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.
On-Chip Secondary PCI IDE
The integrated peripheral controller contains an IDE
interface with support for two IDE channels. Select
Enabled to activate each channel separately.
IDE 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.
IDE Secondary 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
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.
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