Quick Installation Guide
2
I. Quick Installation Guide :
CPU SPEED SETUP
The default system bus speed is 66 MHz. The user can change the DIP
SWITCH
(SW)
selection to set up the CPU speed for 366 - 433MHz
processor.
The CPU speed must match with the frequency RATIO. It will cause
system hanging up if the frequency RATIO is higher than that of CPU.
DIP SWITCH (SW)
1
2
3
4
FREQ.
RATIO
EXT.CLK.
MHz
INT.CLK.
MHz
OFF
ON
OFF
ON
4.5
66
300
ON
OFF
OFF
ON
5
66
333
OFF
OFF
OFF
ON
5.5
66
366
ON
ON
ON
OFF
6
66
400
OFF
ON
ON
OFF
6.5
66
433
JP2, JP3, JP4
(Select the system speed
－
66, 75, 83 MHz )
MAIN CLOCK
JP4
JP3
JP2
66MHz
2-3
2-3
2-3
75MHz
2-3
1-2
2-3
83MHz
1-2
2-3
1-2
Note: We don’t recommend you to setup your system speed to 75 or
83MHz because these frequencies are not the standard
specifications for CPU, Chipset and most of the peripherals.
Whether your system can run under 75 or 83MHz properly will
depend on your hardware configurations: CPU, SDRAM, Cards,
etc.
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