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Prime95 OC question/assistance

Posted: Sat Apr 25, 2009 1:01 pm
by InspectahACE
Call me noob but I never really used this program at all until recently. And while its fairly straight forward, I'm not positive I'm running it correctly..when I do a torture test it asks me how many torture threads to run and it defaults to 8(i guess from the HT). I expected the heat to rise considerably, but it literally has almost a 10C difference between 3.8 and 4ghz in temps. So I imagine I'm not running it right. it wasn't stable at all running it before, but I read somewhere that matching the qpi voltage to near the cpu voltage might help the stability(and health) of the cpu overclock. so I matched it up and it's been good. Suppose I should ask what's the best voltage too for 3.8-4ghz OC while I'm near the subject.I based mine off what I saw on everyone else's and from when it was set on Auto in the bios. (i current have the cpu set to 1.45v btw) And should I run 4 torture threads or use the defaulted 8?

Re: Prime95 OC question/assistance

Posted: Tue Apr 28, 2009 4:09 am
by DMB2000uk
Keep the threads at 8 if you've got HT turned on.

You need to check an option called round off error checking in one of the menus.

Do small FFTs to stress your CPU only, and then run a blend test to make sure your CPU and memory subsystem are playing nice at those clocks.

Dan

Re: Prime95 OC question/assistance

Posted: Tue Apr 28, 2009 5:30 pm
by InspectahACE
Right on Dan. Thanks for the info. I was happy to see that I wasn't too far off already on your tips. Kind of bummed out that 4ghz got a lil warm for my liking. 3.8 seems to be the sweet spot since it doesn't go higher than 75C and is rock solid on the small FFT test and the Blended one. and that's with my ram at full speed too:). BCLK- 200/multi-19, ram @ 1603mhz(technically speaking). Plus I never get this cpu fully loaded like that so I'll never get to that point. I could run 4ghz but I want to be rock solid too and no difference really. Thanks again Dan :)