10
CPU Clock Setting :
Cpu
Speed/Clock
JP4
1-2
JP4
3-4
JP4
11-12
JP4
13-14
55MHz OPEN SHORT SHORT OPEN
60MHz OPEN SHORT OPEN OPEN
66MHz OPEN OPEN OPEN OPEN
CPU to Bus Multiple :
Multiplier
JP4
5-6
JP4
7-8
JP4
9-10
1.5 x OPEN OPEN OPEN
2x SHORT OPEN OPEN
2.5x SHORT SHORT OPEN
3 x OPEN SHORT OPEN
3.5 x OPEN OPEN OPEN
4 x SHORT OPEN SHORT
4.5x SHORT SHORT SHORT
CPU Frequency = CPU Clock x Multiplier for example
Pentium® 200MHz = 66MHz CPU Clock x 3
JP22 DESCRIPTION
SHORT
If use Intel Low-Power Embedded 266MHz
Processor.
OPEN Other Processor.
CPU Core Voltage Selection :
Please check CPU Core Voltage before going on to CPU installation procedure.
Currently, the new Intel MMX CPU utilizes dual voltages for core and I/O, that is,
I/O is 3.3V and core is 2.8V. This kind of CPU design will enhance low power
consumption capability. Common Pentium CPU’s uses one voltage for both I/O
and core, namely, 3.3V,3.4V,or 3.5V.
JP23 CPU Core Voltage Setting :
CPU Core
Voltage
JP23
1-2
JP23
3-4
JP23
5-6
JP23
7-8
JP23
9-10
3.5V(P54C/CS)
VRE
SHORT SHORT SHORT SHORT OPEN
3.4V(P54C/CS)
STD
OPEN SHORT SHORT SHORT OPEN
3.3V SHORT OPEN SHORT SHORT OPEN
3.2V OPEN OPEN SHORT SHORT OPEN
3.1V SHORT SHORT OPEN SHORT OPEN
3.0V OPEN SHORT OPEN SHORT OPEN
2.9V SHORT OPEN OPEN SHORT OPEN
2.8V OPEN OPEN OPEN SHORT OPEN
2.7V SHORT SHORT SHORT OPEN OPEN
2.6V OPEN SHORT SHORT OPEN OPEN
2.5V SHORT OPEN SHORT OPEN OPEN
2.4V OPEN OPEN SHORT OPEN OPEN
2.3V SHORT SHORT OPEN OPEN OPEN
2.2V OPEN SHORT OPEN OPEN OPEN
2.1V SHORT OPEN OPEN OPEN OPEN
2.0V OPEN SHORT SHORT SHORT SHORT
1.9V OPEN OPEN SHORT SHORT SHORT
1.8V OPEN SHORT OPEN SHORT SHORT
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