AcerAltos 9100B Series User’s Guide3-14Hard Disk Block ModeThis function enhances disk performance depending on the hard disk in use. Ifyou set this parameter to Auto, the BIOS utility automatically detects if theinstalled hard disk drive supports the Block Mode function. If supported, itallows data transfer in block (multiple sectors) at a rate of 256 bytes per cycle. Todisregard the feature, change the setting to Disabled.Advanced PIO ModeWhen set to Auto, the BIOS utility automatically detects if the installed hard disksupports the function. If supported, it allows for faster data recovery andread/write timing that reduces hard disk activity time. This results in better harddisk performance. To disregard the feature, change the setting to Disabled.Hard Disk Size > 504 MBWhen set to Auto, the BIOS utility automatically detects if the installed hard disksupports the function. If supported, it allows you to use a hard disk with acapacity of more than 504 MB. This is made possible through the Logical BlockAddress (LBA) mode translation. However, this enhanced IDE feature worksonly under DOS and Windows 3.x, Windows 95 environments. Other operatingsystems require this parameter to be set to Disabled.Hard Disk 32-bit AccessEnabling this parameter improves system performance by allowing the use of the32-bit hard disk access. This enhanced IDE feature works only under DOS,Windows 3.x, Windows 95, and Novell NetWare. If your software or hard diskdoes not support this function, set this parameter to Disabled.CD-ROM Drive DMA ModeThis parameter allows you to enable or disable the CD-ROM drive DMA mode.Set this parameter to Enabled to enable the DMA mode for the CD-ROM drive.
