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Using BIOS
•
If you want to try to run the IDE device with a higher PIO mode that it
was designed for
•
If you have over-clocked the PCI bus and one or more of your IDE
devices cannot function properly (you can correct the problem by
using a slower PIO mode)
Overclocking the PIO transfer rate can cause loss of data.
Primary/Secondary Master/Slave Drive UltraDMA (Auto)
This option allows you to enable or disable UltraDMA support (if available) for
the two IDE devices (Master and Slave drives) attached to that particular IDE
channel. Normally, you should leave it as Auto and let the BIOS auto-detect if
the drive supports UltraDMA. If it does, the proper UltraDMA transfer mode
will be enabled for that drive, allowing it to burst data at up to 100MB/s. You
should only disable it for troubleshooting purposes.
Setting this to Auto does not enable the UltraDMA or any of the slower
DMA mode for IDE devices that do not support UltraDMA. Also, in or-
der for any of those DMA modes to work (including UltraDMA modes),
you will have to enable DMA transfer via the OS.
DE DMA Transfer Access (Enabled)
This item allows you to enabled the transfer access of the IDE DMA.
IDE Burst Mode (Enabled)
This option, when enabled will instruct the system to send every write transaction
to the write buffer. Burstable transactions then burst onto the PCI bus and
nonburstable transactions do not.
Press <Esc> to return to the Integrated Peripherals screen.
f
SIS Onchip PCI Device
Scroll to this item and press <Enter> to view the following screen:
SIS USB Controller (Enabled)
This item enables the USB controller. Leave this at the default “Enabled” if
you want to connect USB devices toy our computer.
USB Ports Number (6 Ports)
This item enables you to determine the number of USB ports.
USB 2.0 Support (Enabled)\
Enable this item if your system supports USB 2.0.
USB Legacy Support (Enabled)
This item allows the BIOS to interact with a USB keyboard or mouse to work
with MS-DOS based utilities and non-Windows modes.
USB Mouse Support (Disabled)
Enable this item if you plan to use a mouse connected through the USB port in
a legacy operating system (such as DOS) that does not support Plug and Play.
Summary of Contents for 661FX-M Deluxe
Page 21: ...16 InstallingtheMotherboard Memo...
Page 39: ...34 34 34 34 34 Using BIOS Memo...