DFI 661FX-MLV User Manual page 67

Primary Master/Slave UltraDMA and Secondary Master/Slave
UltraDMA
These fields allow you to set the Ultra DMA in use. When Auto
is selected, the BIOS will select the best available option after
checking your hard drive or CD-ROM.
Auto The BIOS will automatically detect the settings
for you.
Disabled The BIOS will not detect these categories.
IDE DMA Transfer Access
This field, when Enabled, will enhance the IDE DMA transfer of a
parallel ATA IDE hard disk drive. To enable this function, make
sure the "Internal PCI/IDE" field is not disabled.
IDE Burst Mode
When the IDE Burst Mode function is enabled, it will reduce the
latency time between each drive's read and write cycle. To enable
this function, make sure the "Internal PCI/IDE" field is not disabled.
IDE Prefetch Mode
This allows data and addresses to be stored in the internal buffer
of the chip, thus reducing access time. Enable this field to achieve
better performance.
BIOS Setup
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