Hello there Something weird just happen here and I can get this to work like before I had some PQI 2GB Memory and 1GB memory =3GB install in my system before and I was able to overclock from 2.4ghz to 2.89ghz ay 20% overclock profile.
Note: The motherboard is ASUS P5KPL-MC
Now after I have install some new A-Data 2x2GB High Performance and Gaming memory I can't overclocked to 2.89ghz no more. Now I am only able to overclocked to 2.65Ghz
Intel Dual Core 2.4Ghz ASUS P5KPL-CM mobo A-data 4GB memory 250GB HD 3850HD 512MB GDDR3 256Bit 700 PSU
Can someone with ASUS knowledge let me know. Thank you
More aboutasus p5kpl intel 4ghz dual core issue help
Google is your friend. Look for an OC guide for your motherboard.