Acer Veriton 5900Pro, Service Manual

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Chapter 2 43
OnChip IDE Device
Parameter Description Options
IDE HDD Block Mode Selecting Enabled speeds up processing of drive reads and writes, but may cause
instability in IDE subsystems that cannot support such fast performance. If you are
getting disk drive errors, try setting this value to Disabled.
IDE DMA transfer access This BIOS feature allows you to enable or disable DMA (Direct Memory Access)
support for all IDE devices.
If you disable this BIOS feature, the BIOS will disable DMA transfers for all IDE drives.
They will revert to PIO mode transfers.
If you enable this BIOS feature, the BIOS will enable DMA transfers for all IDE drives.
The proper DMA mode will be detected at boot-up. If the drive does not support DMA
transfers, then it will use PIO mode instead.
IDE Primary transfer access This BIOS feature allows you to enable or disable primary support for all IDE devices.
IDE Primary/Secondary Master/Slave
PIO The four IDE PIO (Programmed Input/Output)
fields let you set a PIO mode (0-4) for each of the
four IDE devices that the onboard IDE interface
supports. Modes 0 through 4 provide
successively increased performance. In Auto
mode, the system automatically determines the
best mode for each device. Auto
Enabled
Disabled
IDE HDD Block Mode [Press Enter]
IDE DMA transfer access [Press Enter]
IDE Primary transfer access [Press Enter]
IDE Primary Master PIO [Auto]
IDE Primary Slave PIO [Auto]
IDE Primary Master UDMA [Auto]
IDE Primary Slave UDMA [Auto]
On-Chip Secondary PCI IDE [Enabled]
IDE Secondary Master PIO [Auto]
IDE Secondary Slave PIO [Auto]
IDE Secondary Master UDMA [Auto]
IDE Secondary Slave UDMA [Auto]
SATA Mode [RAID]
F5:Previous Values F7:Default Settings
KLIJ
:Move Enter: Select +/-/PU/PD :Value F10:Save ESC:Exit F1:General Help
Phoenix - AwardBIOS CMOS Setup Utility
OnChip IDE Device
Item Help
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