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CPU Host Frequency Setting (JP39)
The default CPU host frequency setting is 66MHz. It is defined according to
Intel Pentium II/III and Celeron CPU specification. We strongly advise
novice users not to modify the original setting of the CPU host frequency,
for setting an incorrect value may damage your CPU.
For experienced users, the AB61 mainboard provides an alternative Hard-
Configure function to adjust your CPU host frequency manually.
Note:
Before you adjust your CPU host frequency by jumper, you need to
set CPU Host/PCI Clock to
default
in frequency/voltage control of
BIOS setup program.
Insert mini-jumper caps properly on JP39 to reach desired CPU
Host Frequency, as shown in the following table.
2
CPU
Host Clock
JP39
66MHz based
processor
JP39
100MHz based
processor
66MHz
75MHz
83MHz
100MHz
N/A
112MHz
N/A
133MHz
N/A
140MHz
N/A
150MHz
N/A
Note:
75, 83 MHz are over-clock
usage for 66MHz base processor,
and 112~150MHz are over-clock
usage for 100MHz base processor.
However, over-clocking is not a
recommended practice.
