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Sapphire 5850 non-ref 900 core!

post #1 of 19
Thread Starter 
I was never really planning on oc'ing my Sapphire 5850, non-ref, but I was kind of bored tonight so I figured I would find out what she could do. Keep in mind this is a non reference card so I cannot increase voltage. This is with the stock cooler.

I was able to hit the following:

Core: 900
Mem: 1225

After running Furmark for almost 6 minutes temps leveled out at 66-67C. This is with the fan running at 70%.

I must say I was really impressed and surprised to hit 900 core! I may be able to even push things a little bit more.

Edited by trentiles - 6/10/10 at 5:00pm
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post #2 of 19
Not bad, good job. 900mhz is a great mhz to be at for some really good frame rates. Now bench or play a game or two to see if your are really stable.
    
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post #3 of 19
I get 955/1175 with my non-reference XFX. They aren't as bad as many say.
    
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post #4 of 19
Furmark stress doesnt prove anything and u wont be able to detect artifacts unless you overclock way above the limit . good for stability and temperature test but incomplete.
use OCCT GPU test with Error scan option also chosen. It stress your card as hard as furmark and also scans for errors. If after one-hour test you dont get any errors then your OC is 100% safe. I doubt your non-ref card can hit that OC without errors and its just that furmark doesnt count the small and very-hard to see artifacts.
post #5 of 19
Thread Starter 
I will run OCCT this evening and see what happens. Fingers crossed.
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post #6 of 19
If you love your card like I do mine, then I suggest you do so. Artifacts is a sign over-overcolck is we all know and that it means the component is pushed beyond what it's capable of (we know that too ^^)
So even a few artifacts or errors isnt a good sign and can not be ignored.
900 on core is very unlikely without voltage-increase as the average is 850-1200 on stock voltage.Of course if you pass the OCCT test without errors, thats just means you got a golden chip ^^
post #7 of 19
OCCT sends your temps SKY high. be careful. 1 hour is going to kill your card on 8 shader.
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post #8 of 19
test it on defult (shader)....just set the resolution and check the error scan option, then monitor your temps with GPU-Z.
you dont need all the option just like you dont need all the option in furmark.

this is enough to do the work


I have been using this program for quite sometime, best stressing program out there while with that error scan its just get better and puts you at ease when the test is finished.
if it bothers you ,test on 40 min. if you dont get any error by the first 30-min your good to go. that extra time is just for assurance .
Edited by luches - 6/11/10 at 8:09am
post #9 of 19
Thread Starter 
Thanks +rep.

I will post back with the results. Cmon golden chip. I'm expecting to have to downclock, hitting 900 did seem a bit much.
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post #10 of 19
I also have a non-reference Sapphire HD5850(Click).I can hit 900/1225mhz on stock voltage.These ones are based on the Toxic and Vapor-X models so I think that they have a bit more stock voltage than the ref ones.Mine idles @ 35-39*C and loads at 67 with custom fan profile which gets @ 60% at that temp.This are indeed good for the money.
Edited by M@st3r - 6/11/10 at 9:43am
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