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Sapphire 5850 non-ref 900 core! - Page 2

post #11 of 19
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Just finished running OCCT GPU test with error testing on for 45 minutes. This was with 900/1225 and it finished with 0 errors. Temps never got above 68. I must say I'm pretty happy right now.
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post #12 of 19
you are lucky one then.... Rarely I have seen cards reach that OC on stock voltage. Take care of that golden chip ^^
post #13 of 19
Thread Starter 
Quote:
Originally Posted by luches View Post
you are lucky one then.... Rarely I have seen cards reach that OC on stock voltage. Take care of that golden chip ^^
Well I may have spoken too soon. It passed with flying colors in OCCT but I was playing TF2 and it froze after about 20 minutes.

Time to clock is down a bit.
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post #14 of 19
oh...too bad but I'm sure you can easily do 850-1200 on stock as 99% of 5850s are capable of pulling that off. performance wont differ drastically maby a few fps at most.
post #15 of 19
I'd stay away from furmark, Kombustor, and OCCT; they are worthless for testing 5000 series cards. Also they are potentially harmful to your voltage regulators. Stick to games, game benchmarks and game demos ran in loops to test for stability.
    
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post #16 of 19
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I might buy Vantage so that should be good for testing.
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post #17 of 19
Pro testing is composed of both stressing using related-programs and gaming and benching : thats what I do for my OC at least. First a 30min test with OCCT, then a 5 hours play bad company 2 on highest settings + 16x AF - 8X AA . As the last hit I would go for 3D vantage test.

though what rico2001 is not wrong but I personally I think a game or bench is not enough to measure the safety and reliability of an OC or identifies the artifacts or Errors . card needs to be pushed to its limits. Thats why I use that formula I mentioned above.

it takes time but its the most reasonable method.DO OCCT plus other tests now that your are seriously going for a fully stable OC.
Edited by luches - 6/12/10 at 2:12pm
post #18 of 19
i have saphire 5850 non reference and it crashes beyond 810/1190

i think you should try some games
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post #19 of 19
my best experience in overclocking my 5850 comes from using heaven bench. i jack the settings up pretty high, 1920x1080, everything high, tesselation medium, and 4x AA 4xAF. as i overclock a bit too far, folliage begins to flicker, and eventually either: A) my minimum FPS will drop very low due to one or two instances of freezing, or B) Heaven Bench will freeze and either white screen in time for a CTR ALT DEL or system will crash. it's a rough test but it works every time. i'm suprised to see that no one ever uses it?


edit: see my attachment for my as of yet best stable scores
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