User`s guide

BIOS 7-11

Snoop Filter

Select Enabled to eliminate snoop trafﬁ c to the graphics port to improve system

performance when running graphics intensive applications. The options are Enabled and

Disabled.

Crystal Beach Features

This feature was designed to implement Intel's I/O AT (Acceleration Technology) to

accelerate the performance of TOE devices.

The options are Enabled and Disabled.

Route Port 80h Cycles to

This feature allows the user to decide which bus to send debug information to. The options

are Disabled, PCI and LPC.

Clock Spectrum Feature

If Enabled, the BIOS will monitor the level of Electromagnetic Interference caused by the

components and will attempt to decrease the interference whenever needed. The options

are Enabled and Disabled.

Enabling Multi-Media Timer

Select Yes to activate a set of timers that are alternative to the traditional 8254 timers for

the OS use. The options are Yes and No.

USB Function

Select Enabled to enable the function of USB devices speciﬁ ed. The settings are Enabled

and Disabled.

Legacy USB Support

This setting allows you to enable Legacy USB device support. The settings are Enabled and

Disabled.

NOTE

: A TOE device is a specialized, dedicated processor that is installed on an add-

on card or a network card to handle some or all packet processing of the add-

on card. For this motherboard, the TOE device is built inside the ESB 2 South

Bridge chip.