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8. BIOS Setup
80
SEH-9450-LAS
Frequency/Voltage Control
Figure 8.16. Frequency/Voltage Control
Table 8.17. Frequency/Voltage Control Selections
Description Choices
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 values from 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.