Onchip Ide Device - Acer Veriton 7900Pro Service Manual

OnChip IDE Device

IDE HDD Block Mode
IDE DMA transfer access
IDE Primary transfer access
IDE Primary Master PIO
IDE Primary Slave PIO
IDE Primary Master UDMA
IDE Primary Slave UDMA
On-Chip Secondary PCI IDE
IDE Secondary Master PIO
IDE Secondary Slave PIO
IDE Secondary Master UDMA
IDE Secondary Slave UDMA
SATA Mode
:Move Enter: Select +/-/PU/PD :Value F10:Save ESC:Exit F1:General Help
Parameter
IDE HDD Block Mode
IDE DMA transfer access
IDE Primary transfer access
IDE Primary/Secondary Master/Slave
PIO
Chapter 2
Phoenix - AwardBIOS CMOS Setup Utility
OnChip IDE Device
[Press Enter]
[Press Enter]
[Press Enter]
[Auto]
[Auto]
[Auto]
[Auto]
[Enabled]
[Auto]
[Auto]
[Auto]
[Auto]
[RAID]
F5:Previous Values F7:Default Settings
Description
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.
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.
This BIOS feature allows you to enable or disable primary support for all IDE devices.
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.
Item Help
Menu Level
Options
Auto
Enabled
Disabled
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