Acer Aspire 7100 Aspire 7100 Service Guide - Page 32

Advanced PIO Mode When set to Auto, the BIOS utility automatically detects if the installed hard disk supports the function. If supported, it allows 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. NOTE This parameter appears only when you are at the Advanced Level. 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. NOTE This parameter appears only when you are at the Advanced Level. 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. NOTE This parameter appears only when you are at the Advanced Level. 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 de-activate the function, set the parameter to Disabled . NOTE This parameter appears only when you are at the Advanced Level. Chapter 2 25