Pentium® III Processors Voltage Requirements |
Pentium® III processors are specified to operate at the voltages provided in
the table below. It is important to verify that the motherboard explicitly supports the
specific processor (by stepping and speed).
Voltage Requirements for Pentium III Processors
* Note that 1.0 GHz = 1000 MHz
Proper voltage must be supplied for reliable operation. It may be supplied by a
regulator integrated in the motherboard, or by a voltage regulator module (VRM)
installed in Header 8 on the motherboard.
If the regulator is integrated in the motherboard, it must be Voltage ID (VID)
programmable to allow the processor to program the correct voltage during
power-on.
If the motherboard has Header 8, then a VRM must be installed in the header to
power the processor. Most VRMs are VID-programmable. If your motherboard
has a fixed-voltage VRM, its output voltage must match the processor
requirements.
Since the operating voltage of Pentium III processors may be changed as
the processor goes through stepping changes, VID-programmable voltage regulators
are the preferred solution.
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