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First Time GPU Overclocker

post #1 of 15
Thread Starter 
Running an MSI Twin Frozr III Radeon 6950, unlocked from 1408 to 1536 shaders through bios flash. OCd from 850 to 900MHz core clock, 1300 to 1400MHz memory clock. Ran Furmark at 1080p, no MSAA, fullscreened. Core voltage is at 1.15v. Temps are so high because it's actually in an old Dell from 2005 on a Pentium 4. Card still runs great, though. Almost no ventilation in case. Temped to take side panel off and see how it affects case temps. I'm going to make a rough estimate of 24C ambient.



Am I just totally on the wrong track here or am I headed in the right direction? Advice from anyone more experienced?
post #2 of 15
why do you have this card paired up with a p 4....
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post #3 of 15
Thread Starter 
Ordering sig rig Monday. Bought this card because I was making sure it wouldn't go out of stock when it came time to buy the rest.
post #4 of 15
well not trying to mean but would this mean the test results are kind worthless sense you can't get good air flow and the o.c you have don is rather small or mild. I say wait for new system and go off of that to help you learn how to o.c sense you will have better head room to get to some more advance higher clocks to learn how to fine tune up in that area. hopes this help and good luck
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post #5 of 15
Thread Starter 
A 100MHz core overclock on a gpu is certainly not worthless. Can someone else actually answer my question?
post #6 of 15
you did a 100 mhz on memory and only 50mhz on the gpu. with that increase i doubt you had to mess with the volts. i can do that on my 5850 with no problem. done it on nvidia cards to with ease. I would wait till you get into someone high clocks thats when you really start learning how to fine tune it to get that high clock.

unless some more advanced o.c can step in I'm pretty sure I'm going in the right direction.
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post #7 of 15
Whatever increase you may see, won't matter in furmark. The only reason to run furmark/kombuster is for stressing your PSU and thermal-related hardware. It isn't an accurate gauge of performance, overclock stability, or realistic temperatures achieved.

3dmark11 is better, but gaming is best.

don't overclock your vmem more than 1475 or so, as it will actually decrease performance with ECC errors, and the GPU as high as you can get it while maintaining reasonable temperature, say under 80c.
post #8 of 15
Thread Starter 
Quote:
Originally Posted by Dr.GumbyM.D. View Post
Whatever increase you may see, won't matter in furmark. The only reason to run furmark/kombuster is for stressing your PSU and thermal-related hardware. It isn't an accurate gauge of performance, overclock stability, or realistic temperatures achieved.

3dmark11 is better, but gaming is best.

don't overclock your vmem more than 1475 or so, as it will actually decrease performance with ECC errors, and the GPU as high as you can get it while maintaining reasonable temperature, say under 80c.
Alright, thanks. Gonna try 950/1450 tonight and play around with 3DMark11. Do you suggest running every test section or just a specific one or two?
post #9 of 15
I'd run them all.

950 will be pushing stock cooling, so I'd be careful. I can't get over 950 without raising the voltage, so you might want to do that, but again, careful with the temps.

Also, why bother doing this now when you can't use it till your new rig comes in, and then once you reinstall, you'll probably have a pretty different set of circumstances to deal with, so you'll probably have to slowly find a safe OC again. Dunno, just my experience, trying to save you a headache.
post #10 of 15
^ thats what i told him.... because i don't think he is going to get to that 950 o.c with him already hitting close to 70c on the gpu.
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WD Raptor 160gb LG Blue Ray Windows 7 Ultimate 64bit Viewsonic 22" 1080P 
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