I've installed it and the system runs fine, but when i put it through its pace playing Medal of Honor airborne (or other online games), I usually get the blue screen of death after about 5 mins and my system reboots.
The Ram is in slots 1+2, if this is relevent.
Have i done something wrong? What could be the reasons behind this?
I have done a few memory upgrades and run into all sorts of problems ;-) If Crucial did the scan and recommended what you bought, it is 99% certain it is correct. OK - take the new RAM out and put the old RAM back in the slot(s) it came from. Now try to boot the PC. If it boots OK - replace the old RAM with ONE of the new modules in slot 1. Try to boot again. That's enough for now - post your results. I am assuming you know all about ESD (electro static discharge) and are taking all precautions ?