Originally Posted by NJsFinest24
Thanks for the reply. Ive tried to overclock a little bit but it seems I am not doing something right. Whenever I am in a game, my screen will go black and say No dvi signal. So maybe its not getting enough voltage?? Its not getting too hot according to Precision X. Trial and error for right now I guess.
How are you deciding your clock increases? Are you following any guides?
Start by focusing only on the core. Your card jumps up/down in 13mhz blocks. I start overclocking by trying +13 to the core and using a combination of OC Scanner
to warm the card and then 20 minutes of Valley on Extreme. I use Precision X's monitoring window to show temps and 'limits' (voltage, usage, etc). If Valley doesn't crash and the driver continues working without 'stopping' then I bump up another 13mhz. I adjust the core while Valley is running so that the core doesn't cool down (try to get the GPU hot before testing to help finding problems). I am also sure to set the priority of Boost 2.0 to temperature and I max that slider out on Precision X.
You will eventually hit a voltage wall which manifests itself with the Voltage Limit in the monitoring window showing a '1' or unstable behavior/artifacts in Valley. You then need to start increasing voltage a click up in Precision X, shutdown the computer fully and then start back up and retest with another 'heating' round of OC Scanner. If it passes, try increasing the core speed again. Rinse repeat. This takes a few hours.
Have a stable speed you are happy with? Start testing with a game engine. I like to run the Metro 2033 benchmark (C:\Program Files (x86)\Steam\steamapps\common\Metro 2033\metro2033benchmark.exe) for 10 loops with an extreme setting (https://dl.dropboxusercontent.com/u/1736241/Benchmarking/Metro2033/frontline%281920x1200maxed%29.mbcfg
). Is that stable? Start playing some games and see how stable things are. I've been using BF4 to test stability.
Now; you have the core stable. You can try your hand at memory overclocking. Right off the bat I tried +300 memory and I haven't had any issues with stability (I have Samsung chips).
[EDIT]: Clarified steps of increasing voltage.
[EDIT]: Mentioned temperature target and screenshot of Precision X.Edited by jink - 11/16/13 at 12:52pm