24
Cyrix
IDT
External Freq.
Multiplier
External Freq.
Multiplier
M1 PR166
66
2
200
66
3
M2 PR166
66
2
M1 PR 200
75
2
M2 PR 200
75
2
M2 PR 233
75
2.5
M2 PR 266
83
2.5
( Note: Freq. stands for Frequency.)
For example, if your CPU is Intel Pentium MMX 166, which means 66MHz (its external bus speed )
x 2.5 (multiplier). So, for an Intel Pentium MMX 166 CPU holder, the only act users need to do is
to place one jumper cap on the position marked “66MHz” and the other jumper cap on the position
marked “x 2.5” on J1.
2.3.4 CPU Voltage Selection
The manufacture default on this J2 jumper is “2.8V.” This J2 jumper sets the voltage for the CPU.
For example, the Intel Pentium single voltage CPU uses 3.52V. and the Pentium with MMX CPU
uses the dual power source and more “Green” concept at 2.8V. This motherboard provides a jumper
to satisfy different requirements.
Most of the processors do not use the same voltage. For example, the Intel Pentium processor is
using 3.5V single power source and Intel Pentium with MMX processor is using the 2.8V dual
power source.
3.5
3.2
2.9
2.8
2.2
1.8 2.7
