User manual

AIMB-564 User Manual 70
2.10 Frequency / Voltage Control
Figure 2.13: Spread Spectrum Frequency/Voltage Control screen
2.10.1 CPU Clock Ratio Unlock
It is suggested to keep this set this as disabled.
2.10.2 CPU Clock Ratio
Set CPU Ratio if CPU Ratio unlock is enabled.
The range is 8X~24X, depending on CPU Clock Ratio.
2.10.3 Spread Spectrum
This setting allows you to reduce EMI by modulating the signals the CPU
generates so that the spikes are reduced to flatter curves. This is achieved
by varying the frequency slightly so that the signal does not use any par-
ticular frequency for more than a moment. The choices are “Disabled”
and “Enabled”.