AMI BIOS Setup
3-25
Frequency/Voltage Control
This section describes how to set the Chassis Intrusion feature, CPU FSB
frequency, monitor the current hardwae status including CPU/system
temperatures, CPU/System Fan speeds, Vcore etc. Monitor function is available
only if there is hardware monitoring mechanism onboard.
SDRAM Frequency
This item allows you to select the clock frequency of DDR DRAM. Settings:
Auto, 200MHz, 266MHz
.
Spread Spectrum
When the motherboard clock generator pulses, the extreme values (spikes) of
the pulses creates EMI (Electromagnetic Interference). The Spread Spectrum
function reduces the EMI generated by modulating the pulses so that the
spikes of the pulses are reduced to flatter curves. If you do not have any EMI
problem, leave the setting at
Disabled
for optimal system stability and
performance. But if you are plagued by EMI, setting to
Enabled
for EMI
reduction. Remember to disable Spread Spectrum if you are overclocking be
cause even a slight jitter can introduce a temporary boost in clockspeed which
may just cause your overclocked processor to lock up. Available options:
Enabled, Disabled
.
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