User`s guide

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7: BIOS

USB 2.0 Controller Mode

This setting allows you to select the USB 2.0 Controller mode. The options are Hi-Speed (480

Mbps) and Full Speed (12 Mbps).

BIOS EHCI Hand-Off

Select Enabled to enable BIOS Enhanced Host Controller Interface support to provide a

workaround solution for an operating system that does not have EHCI Hand-Off support. When

enabled, the EHCI Interface will be changed from the BIOS-controlled to the OS-controlled. The

options are Disabled and Enabled.

Intel PCI-X Hub Configuration

PCI Bus A0/B0 Frequency

This option allows the user to set the maximum PCI speed to be used in the PCI slot specified.

Select Auto to allow the BIOS to automatically detect the capability of the device installed on the

bus. The options are Auto, 33 MHz PCI, 66 MHz PCI, 66 MHz PCI-X MI, 100 MHz PCI-X MI,

and 133 MHz PCI-X MI.

I/O Port Decode

This option allows the user to select the decode range for the I/O connections. The options are 4K

Decode and 1K Decode.

RAS Sticky Error Handling

This option allows the user to decide how to handle Sticky RAS errors. The options are Clear

Errors and Leave Errors (unchanged).

VGA 16-Bit Decode

Select Enabled to enable the function of decoding VGA for the devices installed behind the PXH

PCI Controller Hub. The options are Enabled and Disabled.