how long to run prime95 for?

caveman OCUK · 5 Sep 2013 at 21:58

A 4670k at 4ghz been running for 5 and a half hours at blend settings torture test, was going to do 8 or can i say stable now? Its only for games and photoshop and im getting tired lol.

thanks in advance

d_brennen · 5 Sep 2013 at 22:09

You realise that you can leave your PC and go to bed?

TBH it's probably fine now, no game comes close to Prime

snips86x · 5 Sep 2013 at 22:14

30 mins will be fine. As above, games dont come any where near the usage prime would.

caveman OCUK · 5 Sep 2013 at 22:15

Thanks, yeah i spose ill leave it over night, might as well do a 24 tho to be sure and say i did it the "enthusiasts way" lol , 24 in blend is a 99.9% stable right? Ill go bed and watch tv until it gets to 24 tomorrow, thanks again

then i can post it up on pc parts picker.

murah · 5 Sep 2013 at 22:56

15-30 min is fine for general use (Gaming is covered under this catagory) , anything more extreme (encoding/folding) and you will want to test for 12-24 hours. personally I Always use custom: "Number of torture test threads to run" should be automatically be set to 4 or 8 depending on what CPU you have.

"Memory to use in MB" should be set to 512 x # of GB of RAM installed. 4GB x 512 = 2048. 8GB x 512 = 4096.

Max FFT SIZE (in K)typically i set it for 1792

Also before running a test click cancel goto advanced on the top and make sure "Round off checking" is ticked

and finally time to run each FFT size can be left as standard Or go for 5-10 mins.

and run that for as long as you feel you should (remember a lot of this is always down to personal preference)

Drangueos · 6 Sep 2013 at 00:20

caveman OCUK said:
24 in blend is a 99.9% stable right?

Ahn... NO!!

my pc can run prime 24 hours at 1.26v without problems but it crashs if I try to watch videos on my Internet explorer, with 1.28v my pc works perfect.

so the best test is run prime for 2 hours.. then use your pc as normal... if something is wrong.. probably is the overclock.

caveman OCUK · 6 Sep 2013 at 03:39

Thanks for the extra advice that was another problem i don't think i knew how to use p95 properly ill do a small ft and custom in morning

caveman OCUK · 6 Sep 2013 at 03:41

Drangueos said:
Ahn... NO!!

my pc can run prime 24 hours at 1.26v without problems but it crashs if I try to watch videos on my Internet explorer, with 1.28v my pc works perfect.

so the best test is run prime for 2 hours.. then use your pc as normal... if something is wrong.. probably is the overclock.

Thanks ill do a half hour small fft and custom like murah said in morning too then go play some games , listen to music and browse

d_brennen · 6 Sep 2013 at 03:46

You were tired at 10pm and you're still posting at 3:40am - go to bed naow!

Andrew_McP · 6 Sep 2013 at 05:04

Across multiple upgrades and many overclocks I've found that if Prime/Orthos runs for more than about ten minutes without errors, *and* 3DMarkwhatever completes, the build will be fine 99.99%... unless you're doing something really important on that machine. In which case, why are you overclocking?

If one of those conditions isn't met, the overclock's not stable. Usually if there's something wrong you find out pretty quickly unless it's a memory error way down at the "far" end of your address range. Memtest will pick that up more reliably, and quickly though.

kevbiss1 · 6 Sep 2013 at 05:52

i suggest a mild oc at that voltage will be fine,just up the multi until it doesnt boot into windows and then back off the multi by one and then retest with prime for an hour.

caveman OCUK · 6 Sep 2013 at 06:51

d_brennen said:
You were tired at 10pm and you're still posting at 3:40am - go to bed naow!

IM 21 in a man now >_<

, lol nah i just woke up half way through night.

caveman OCUK · 6 Sep 2013 at 06:54

kevbiss1 said:
i suggest a mild oc at that voltage will be fine,just up the multi until it doesnt boot into windows and then back off the multi by one and then retest with prime for an hour.

I tried before i started stress testing , but it wouldn't let me move the multiplier, and it is a K series, just couldn't find how to switchbit to manual, the manual says click on the auto its on and i did but no options apeared to adjust ratio to manual, i did turn oc genie off too :/.

caveman OCUK · 6 Sep 2013 at 10:29

Just done it, set to 4.2ghz it wouldn't do 4.4ghz 4.4 was boot in BSOD, stress testing the 4.2ghz now