Acer Aspire M5100 Aspire M1100/3100/5100 Power M3100 Service Guide - Page 45

South OnChip IDE Device Scroll to this item and press Enter to enter the sub-menu shown as below. Phoenix - Award WorkstationBIOS CMOS Setup Utility South OnChip IDE Device IDE DMA transfer access OnChip IDE Channel 0 [Enabled] [Enabled] Help Item Primary Master PIO [Auto] Menu Level X Primary Slave PIO [Auto] Primary Master UDMA [Auto] Primary Slave UDMA [Auto] IDE HDD Block Mode [Enabled] KLIJ :Move Enter: Select +/-/PU/PD :Value F10: Save and Exit ESC:Exit F1: General Help F5: Previous Values F7: Optimized Defaults IDE DMA Transfer Access This item allows you to enable the transfer access of the IDE DMA. OnChip IDE Channel Select Enabled to activate IDE channel. IDE Primary/Secondary Master/Slave PIO Each IDE channel supports a master device and a slave device. These four items let you assign which kind of PIO (Programmed Input/Output) is used by IDE devices. Choose Auto to let the system auto detect which PIO mode is optimal, or select a PIO mode from zero to four. IDE Primary/Secondary Master/Slave UltraDMA This main board supports UltraDMA technology, which provides faster access to IDE devices. If you install a device that supports UltraDMA, you can change the item on this list to Auto. You may have to install the UltraDMA driver supplied with this main board in order to use an UltraDMA device. IDE HDD Block Mode Enable this field if the IDE hard drive supports block mode. Block mode enables BIOS to automatically detect the optimal number of block read and writes per sector that the drive can support and improves the speed of access to IDE devices. Chapter 2 35