Acer Aspire SA80 Aspire SA80 and Power S280 Service Guide - Page 58

SIS OnChip IDE Device Press [Enter] to enter the sub-menu and the following screen appears: Phoenix - AwardBIOS CMOS Setup Utilitye SIS OnChip IDE Device Internal PCI/IDE [Both] Item Help IDE Primary Master PIO [Auto] IDE Primary Slave PIO [Auto] IDE Secondary Master PIO [Auto] Menu Level X IDE Secondary Slave PIO [Auto] Primary Master UltraDMA [Auto] Primary Slave UltraDMA [Auto] Secondary MasterUltraDMA[Auto] Secondary SlaveUltraDMA [Auto] IDE DMA transfer access [Enabled] IDE Burst Mode [Enabled] KLIJ: Move Enter: Select +/-/PU/PD: Value F10:Save ESC: Exit F5: Previous Values F7: Optimized Defaults F1: General Help SIS OnChip IDE Device Parameter Internal PCI/IDE IDE Primary Master PIO IDE Primary Slave PIO IDE Secondary Master PIO IDE Secondary Slave PIO Description Option This setting enables or disables the internal primary and secondary PCI & IDE controllers. Disabled Primary Secondary Both Setting these items to "Auto" activates the HDD speed auto-detect function. The PIO mode specifies the data transfer rate of the HDD. For example, mode 0 data transfer rate is 3.3MB/s, mode 1 is 5.2 MB/s, mode 2 is 8.3MB/s, mode 3 is 11.1 MB/s and mode 4 is 16.6MB/s. If your hard disk performance becomes unstable, you may manually try the slower mode. Auto Mode 0 Mode 1 Mode 2 Mode 3 Mode 4 Primary Master UltraDMA Primary Slave UltraDMA Secondary Master UltraDMA Secondary Slave UltraDMA These items allow you to Enable/Disable the Ultra DMA supported by the hard disk drive connected to your primary and secondary IDE connectors. Auto Disabled IDE DMA transfer access IDE Burst Mode This item is allow you to Enable/Disable DMA function. This allows your hard disk controller to use the fast block mode to transfer data to and from the hard disk drive Disabled Enabled Disabled Enabled 50 Chapter 2