Acer X3200 EF9100A Aspire X1200 / X3200 Service Guide - Page 27

IDE Function Setup Parameter OnChip IDE Channel 0 Primary Master PIO Primary Slave PIO Primary Master UDMA Primary Slave UDMA IDE DMA Transfer Serial-ATA Controller IDE Prefetch Mode Description Option Enables or disables the first IDE channel. Enabled Disabled When set to Auto, BIOS setup 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. Mode 0 to 4 provide progressive increase of performance. Auto Mode 0 Mode 1 Mode 2 Mode 3 Mode 4 Auto Mode 0 Mode 1 Mode 2 Mode 3 Mode 4 Enables or disables the primary and master UDMA mode Auto Disabled Auto Disabled Enables or disables DMA (Direct Memory Access) transfers for all IDE drives. Enabled Disabled Enables or disables the serial ATA controller. Enabled Disabled Enables or disables the IDE controller to prefetch data from the IDE drive. Enabled Disabled Chapter 2 19