Intel SBC-780 manual  Auto Detect DIMM/PCI CLK,  Spread Spectrum, 6 Clk/Voltage Setup

F u l l - Size CPU Card S B C - 7 8 0

3.2.6 Clk/Voltage Setup

By choosing the [Clk/Voltage] option from the top menu, the screen below is displayed.

 Auto Detect DIMM/PCI CLK
This item allows you to enable/disable auto detect DI	MM/PCI
clock.

The choices: Enabled, Disabled.

Spread Spectrum

When the system clock generator pulses, the extreme values of the pulse generate excess EMI. Enabling pulse spectrum spread modulation changes the extreme puls e spikes to flat curves thus reducing EMI. This benefit may in some cases be outweighed by problems with timing -critical devices, such as a clock -sensitive SCSI device.

The choices: Disabled, -0.5%, +/-0.5%, +/-0.25%

Chapter3 Award BIOS Setup 3 - 33