SOYO SY-5EMA manual CPU Frequency Setting SW1, Host Bus Frequency

Hardware Setup SY-5EMA

•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

Multiplier	1	2	3
1.5/3.5x	off	off	off
2.0x*	on	off	off
2.5x	on	on	off
3.0x	off	on	off
4.0x	on	off	on
4.5x	on	on	on
5.0x	off	on	on

Host Bus Frequency

Host Bus	4	5	6
Frequency
66MHz	off	off	off
75MHz	off	on	off
83MHz	on	on	off
95MHz	on	off	on
100MHz	off	off	on
112MHz	off	on	on
124MHz	on	off	off

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.

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