SOYO SY-7ISA+ Motherboard Computer Hardware User Manual


 
Hardware Installation SY-7ISA+
43
Step 6. CPU Frequency Settings: JP6, JP7, CJ1 and CJ2
For certain Intel CPUs, the multiplier is not locked such that setting a
multiplier higher than specified on the CPU is possible. For technical
details read the following:
Your FC-PGA 133/100/66 MHz FSB CPU has a pin JP6, JP7 to tell it
what FSB frequency the CPU requires; If these two jumpers are shorted
the motherboard will automatically run at the frequency the CPU was
specified to run at.
However, the FSB Frequency can also be set through jumpers CJ1 and CJ2
and it may therefore differ from the Frequency the CPU specifies. If CJ1
and CJ2 are to be used, JP6 & JP7 must be open. Doing so may however
force your CPU to operate out of its specifications and therefore SOYO
can not guarantee the proper functioning of your system.
Refer to the following table:
CPU Frequency JP6 JP7 CJ1 CJ2
Automatic
Short Short Open Open
66MHz
Open Open 2-3 2-3
100MHz
Open Open 1-2 2-3
Manual
133MHz
Open Open 1-2 1-2
1
2
3
1
2
3
1
2
3
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3