Setting The Cpu Of Rocky-58Ev - IEI Technology ROCKY-558EV Manual

2.2 Setting the CPU of ROCKY-558EV
• CPU Clock Setting :
CPU Speed/Clock
55MHz
60MHz
66MHz
75MHz
83MHz
• CPU to Bus Multiple :
Multiplier
1.5 x
2 x
2.5 x
3 x
3.5 x
4 x
4.5 x
CPU Frequency = CPU Clock x Multiplier for example
Pentium® 200MHz = 66MHz CPU Clock x 3
• CPU Core Voltage Selection :
Please check the CPU Core Voltage before you install the
CPU. Right now new Intel MMX CPU is dual voltages for
core and I/O,the I/O is 3.3V but the core is 2.8V. This kind
of CPU design will enhance the low power consumption
capability. As for the general Pentium® CPU is one voltage for
I/O and Core - 3.3V,3.4V,or 3.5V
• JP4 CPU Core Voltage Setting :
JP3 JP3
7-8 9-10
CLOSE CLOSE
CLOSE OPEN
OPEN OPEN
OPEN CLOSE
CLOSE OPEN
JP3 JP3
1-2 3-4
OPEN OPEN
CLOSE OPEN
CLOSE CLOSE
OPEN CLOSE OPEN
OPEN OPEN
CLOSE OPEN
CLOSE CLOSE
8
JP3
11-12
OPEN
OPEN
OPEN
CLOSE
CLOSE
JP3
5-6
OPEN
OPEN
OPEN
OPEN
CLOSE
CLOSE