CHAPTER 8 - BIOS Setup
104 SPI-8450-LLVA
8.10. Frequency/Voltage Control
Description Choice
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.