SOYO SY-5S User Manual
Page 37
Hardware Setup
SY-5STM
33
2-2 CPU FREQUENCY SETTING (JP10~16)
Configure the JP10~16 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 JP14 JP15 JP16
Host Bus
Frequency
JP10 JP11 JP12 JP13
1.5x
open open open
50MHz
2-3
2-3
2-3
1-2
2.0x*
open open short
55MHz
1-2
2-3
2-3
1-2
2.5x
short open short
60MHz
2-3
2-3
1-2
1-2
3.0x
short open open
66MHz*
2-3
1-2
2-3
1-2
3.5x
open open open
68MHz
1-2
1-2
1-2
1-2
4.0x
open short short
75MHz
1-2
2-3
1-2
1-2
4.5x
short short short
83MHz
1-2
1-2
2-3
2-3
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 pages 12~15 for complementary
information.