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PC 815
3
User
’
s
Manual
54
Phoeni
x
-Award B
I
OS Utility
3.12
Frequency/Voltage
Control
This
section
is
to
control
the
CPU
frequency
and
Supply
Voltage,
DIMM
OverVoltage
and
AGP
voltage.
CPU
Clock
Ratio
Use
this
item
to
select
the
CPU’s
frequency.
Auto
Detect
PCI
Clk
The
enabled
item
can
automatically
disable
the
clock
source
for
a
PCI
slot
without
a
module,
to
reduce
EMI
(Electro Magnetic
Interference).
Spread
Spectrum
If
spread
spectrum
is
enabled,
EMI
(Electro Magnetic
Interference)
generated
by
the
system
can
be
significantly
reduced.
Press
<Esc>
to
return
to
the
Main
Menu
page.