Im having a little problem with my overclocked i5 2500k.
I have it overclocked to 4.5ghz with voltage set to auto on the mobo and bclk set to 100mhz. (mobo is gigabyte ga-z68xp-ud4)
Now I have used intel burn test and ran 20 test @ high and the temps are 55-60c and it is stable, i have also ran prime 95 for hours and hours and all is stable.
The problem comes when playing battlefield 3, if i leave the cpu at stock settings there is no problem but when it is overclocked for some annoying reason the computer will freeze completely and i have to do a hard reset and then I get an error when it boots back up and the code I get is Bbcode 124.
I am lost for any ideas as to the problem due to IBT and prime running fine and stable but BF3 just does not like overclock and it is not stable with that game, but please remember when cpu is at stock settings bf3 never crashes for me.
H60 Corsair Water Cooler
Corsair Vengence 4 2GB STICKS
Sapphire 6950 2gb Crossfire
XFX 850W pro 70 AMP power supply
MAX CORE VOLTAGE IS 1.296v and as I have said it is stable with prime 95 and IBT ect but play an hour of battlefield 3 and it locks up. Put the settings back to stock in the bios so that the cpu is at stock and battlefield 3 runs fine.
What's your QPI/Dram voltage set too. It could be cpu voltage, but at the frequency, it could easily be QPI voltage that needs to be raised. Also since you're prime stable, and freeze in game, I think that points to the memory controller/ram.
I will look in to that page in detail tomorrow morning once I have slept and will report back.. Been up for 34 hours now so everything is becoming a blur and probably not a good idea to play in the bios when I am sleep deprived lol.
One thing I did notice is there are so many schools of thought regarding the best way to overclock and what people deam as a safe voltage for 24/7 use so it can get very confusing as im not sure what is the right course of action.