Hey guys long time no chat. Summer time is finally gone and temps have been amazing! It's finally coming winter and I'm back to overclocking my 940 to see where the max ceiling of this chip is.
To recap, the farthest I went with an OC was 3.5ghz @ 1.425v with 220fsb with x16 multi. I have the CPU/chipset voltage bumped up to 1.25v.
I am currently attempting to get 3.7ghz stable with voltage increases but right now I'm not having any luck. To my surprise though it booted right into Windows with 1.425v. But upon running Prime95 my computer froze.
I bumped the voltage up to 1.435v and worker#4 failed almost instantly. So I bumped it up to 1.45v and worker#4 failed again... so I bumped it up to 1.4625v... and again, worker#4 failed within seconds. See a trend here? It's really kind of annoying that #4 goes so fast but worker#3 failed as well after a couple of minutes with the last 2 voltage bumps. I assume the voltage isn't high enough to keep the OC stable. So I'm about to reboot with another voltage bump to see where that takes me.
EDIT: 1.475v was a no go as well. This time worker#3 failed after a minute. Longer than the last times. Which tells me the OC is starting to become stable with voltage increases. I'm hoping the next bump can last a bit longer...
EDIT: 1.485v failed after a minute. I tried then running large FFT's and it failed right away. I'm running small FFT's and it's doing fine so far. I'm wondering now if my RAM is the culprit. I have it overclocked to 440mhz with a 220fsb because it helps out with my low HT link being on an older AM2+ motherboard. But I'm thinking if I remove the fsb OC and the CPU/chipset voltage bump and just work with the multiplier I might see some different results.
EDIT: Well dropping the fsb back down to 200 and working with the multiplier didn't net any different results. I have a feeling I'm going to have to push beyond 1.5v to even try and get 3.7ghz stable. Edited by Fossil - 10/9/09 at 10:32am