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VIA OnChip IDE Device
OnChip IDE Channel 0/1
The mainboard chipset contains a PCI IDE interface with support for two IDE channels. Select "Enabled"
to activate the first and/or second IDE interface. Select "Disabled" to deactivate an interface if you are
going to install a primary and/or secondary add-in IDE interface. Options: Enabled (default)、Disabled
Primary/ Secondary/ Master/ Slave PIO
The IDE PIO (Programmed Input / Output) fields let you set a PIO mode (0-4) for each of the IDE
devices that the onboard IDE interface supports. Modes 0 to 4 will increase performance incrementally.
In Auto mode, the system automatically determines the best mode for each device.
Options: Auto (default)、Mode0、Mode1、Mode2、Mode3、Mode4.
Primary/ Secondary/ Master/ Slave UDMA
Ultra DMA/133 functionality can be implemented if it is supported by the IDE hard drives in your system.
As well, your operating environment requires a DMA driver (Windows 95 OSR2 or a third party IDE bus
master driver). If your hard drive and your system software both support Ultra DMA/133, select "Auto" to
enable BIOS support. Options: Auto (default)、Disabled
IDE HDD Block Mode
Block mode is otherwise known as block transfer, multiple commands, or multiple sector read/write.
Select the "Enabled" option if your IDE hard drive supports block mode (most new drives do). The
system will automatically determine the optimal number of blocks to read and write per sector.
Options: Enabled (default)、Disabled
IDE Prefetch Mode
The "onboard" IDE drive interfaces supports IDE prefetching for faster drive access. If you install a
primary and/or secondary add-in IDE interface, set this option to "Disabled" if the interface does not
support prefetching. Options: Enabled (default)、Disabled
OnChip SATA
This item allows you to enabled or disabled on-chip SATA function.
Options: Enabled (default)、Disabled
VIA OnChip PCI Device
Onboard Audio Device
This item allows you to control the onboard audio. Options: Enabled (default)、Disabled
Onboard LAN Device
This item allows you to enable or disable the LAN Device.
Options: Enabled (default)、Disabled
Onboard Lan Boot ROM
This item decides whether to invoke the boot ROM of the onboard LAN chip.
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