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Hardware Setup SY-5EHM/5EH5 V1.2
15
l CPU FREQUENCY SETTING (SW1)
Configure the SW1 jumpers to the settings that match your CPU
speed. Refer to the following tables to set the Frequency Multiplier
and Host Bus Frequency of your CPU:
Frequency Multiplier Host Bus Frequency
Multiplier 1 2 3
Host Bus
Frequency
4 5 6
1.5/3.5x off off off 66MHz off on on
2.0x* on off off 75MHz off off on
2.5x on on off 83MHz off on off
3.0x off on off 95MHz on off off
4.0x on off on 100MHz off off off
4.5x on on on
5.0x off on on
5.5x off off on
Example: If the working frequency of your CPU is 133MHz, then
select Multiplier=2.0x and Host Bus Frequency=66Mhz accordingly.
Also, as newer and higher frequency CPUs may not be listed in this
section, please refer to the tables CPU Frequency Settings for
Various Processors on page 8 for complementary information.