Acer 500L - Manual (Page 60)

3-14 AcerAltos 500L User’s Guide
Hard Disk Block Mode
This function enhances disk performance depending on the hard disk
in use. If you set this parameter to
Auto , the BIOS utility automatically
detects if the installed hard disk drive supports the Block Mode
function. If supported, it allows data transfer in blocks (multiple
sectors) at a rate of 256 bytes per cycle. To disregard the feature,
change the setting to
Disabled.
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, Windows 95 or higher, 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