oc'd ram now no boot

overclocked my ram a little too far.. now pc wont boot, just get blank screen wont even get as far as bios.. no error beeps or anything system powers up just doesnt boot.. have seperated every part of my rig and put back together but to nothing gets any further.. not sure how much more info i can provide either *** am on a slow simple old laptop..

Try Resetting CMOS.

done sorted.. Thanks for the advice, a friend turned up and told me to do that exact thing just before your post but usefull to keep in mind.

just for info, some new boards have a button that you just press to revert the memory to its normal values like my asus P8Z68-V

i have noticed that recently, going to look into it further thanks.