Load Fail-Safe Defaults - Acer AcerPower F2 Service Manual

Frequency/Voltage Control
The following table describes the parameters found in this menu. Settings in boldface are the default and
suggested settings.
Parameter
CPU Clock Ratio
Auto Detect PCI Clk
Spread Spectrum
38
Description
If the CPU Ratio is set to Manual, end users can
choose a suitable ratio to support the CPU.
This option allows you to enable/disable the
feature of auto detecting the clock frequency of
the installed PCI bus.
When the motherboard's 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
overlocking because even a slight jitter can
introduce a temporary boost in clockspeed which
may just cause your overlock ed processor to
lock up.
Options
8x to 50x
Enabled
Disabled
Disabled
0.35%
0.50%
0.75%
1.00%
Chapter 2