Chapter 3 - BIOS Utility 3-13
Advanced PIO Mode
When set to Auto, the BIOS utility automatically detects if the installed hard disk
supports the function. If supported, it allows for faster data recovery and
read/write timing that reduces hard disk activity time. This results in better hard
disk performance. To disregard the feature, change the setting to Disabled.
Hard Disk 32-bit Access
Enabling this parameter improves system performance by allowing the use of the
32-bit hard disk access. This enhanced IDE feature works only under DOS,
Windows 3.x/95/98, and Novell NetWare. If your software or hard disk does not
support this function, set this parameter to Disabled .
DMA Transfer Mode
The Ultra DMA and Multi-DMA modes enhance hard disk performance by
increasing the transfer rate. However, besides enabling these features in the BIOS
Setup, both the Ultra DMA and Multi-DMA modes require the DMA driver to be
loaded. By setting this parameter to Auto, BIOS automatically sets the appropriate
DMA mode for your hard disk.
CD-ROM Drive DMA Mode
Set this parameter to Enabled to enable the DMA mode for the CD-ROM drive.
This improves the system performance since it allows direct memory access to the
CD-ROM. To deactivate the function, set the parameter to Disabled .