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P4VTB BIOS Setup
18
IDE Prefetch Mode
The “onboard” IDE drive interfaces supports IDE prefetching for faster drive
access. If the interface does not support prefetching. If you install a primary
and/or secondary add-in IDE interface, set this option to “Disabled”.
The Ch o i ce s : En a ble d (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 increased performance progressively. In Auto mode,
the system automatically determines the best mode for each device.
The Cho ices: Auto (default), Mode0, Mode1, Mode2, Mode3, Mode4.
Primary / Secondary /Master / Slave UDMA
Ultra DMA/100 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/100, select Auto to
enable BIOS support.
The Cho ices: Auto (default), Disabled.
IDE HDD Block Mode
Block Mode is a lso ca lled b lock transfer, mult ip le commands, or mult ip le sector
read/write. If your IDE hard drive supports block mode (most new drives do),
select Enabled for automatic detection of the optimal number of block read/write
per sector where the drive can support.
The Ch o i ce s : En a ble d (default), Disabled.
VIA OnChip PCI Device
If you highlight the literal “Press Enter” next to the “VIA OnChip PCI Device” label and then
press the enter key, it will take you a submenu with the following options:
VIA-3058 AC97 Audio
This option allows you to control the onboard AC97 audio.
The Cho ices: Auto (default), Disabled.
VIA-3043 OnChip LAN
This option allows you to control the onboard LAN.
The Ch o i ce s : En a bl e d (default), Disabled.
Onboard LAN Boot ROM
Decide whether to invoke the boot ROM of the onboard LAN chip.
The Cho ices: Disabled (default), Enabled.
OnChip USB Contro ller
This option shou ld be enabled if your system has a USB insta lled on the system