unstable fsb frequency HELP

Hi guys,my fsb is dropping.from 200mhz to 160 sometime n performance while.gaming is affevted when this happens.



I have.no idea why my pc started doing this , before i buy new parts id like to know which i should replace, thanks!



I used occt to monitor fsb and voltages



Mobo:m5a97 le 2.0

Proc: 8320

12v rail = 11.69

3.3v= 3.113

5v =5

unstable fsb frequency HELP