MSI MICRO ATX EX7 Manual page 21

2.1-2 CPU Core Speed Derivation Procedures
1. The jumper JP1 is used to set the Core/Bus (Fraction) ratio of the CPU.
The actual core speed of the CPU is the Host Clock Frequency multiplied
by the Core/Bus ratio. For example:
If
then
200MHz
233MHz
266MHz
300MHz
333MHz
CPU Clock
Core/Bus ratio
CPU core speed =
= 66MHz
= 3.5
Host Clock x Core/Bus ratio
= 66MHz x 3.5
= 233MHz
1 2 3 4
1 2 3 4
2 3 4
1
1 2 3 4
2 3 4
1
2-17
3
3.5
4
4.5
5