User manual
AIMB-554 User Manual 60
3.9.8 ACPI Shutdown Temperature
The system will shut down automatically when the CPU temperature is 
over the selected setting. This function can prevent CPU damage caused 
by overheating.
3.10 Frequency / Voltage Control
Figure 3.14: Spread Spectrum Control screen
3.10.1 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”. 










