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Burn in Period?

post #1 of 7
Thread Starter 
I recently purchased a VisionTek HD4850. And after I got temps corrected I started to OC the card. I found a max stable OC was about 680/1033.

I then left the card tor folding for a few days with the occasional stop to the industry standard stablity test (3 hours of COD4 pwning others in Hardcore).

Well 2 days ago I went back to give a buddy a quick walk through of how easy OCing a GPU really is. Well this time I was able to max CCC on the core 700 and get the ram to 1100 without a problem. Not a big increase but still an increase.

Also my temps have cooled a little. The first few days (after temp fix) I would max around 65-66ish under full load. Currently the GPU is maxing around 62-63ish, Again not a big difference but all other conditions seem to be the same. The only difference (that I know of) is the card has had a "burn in" period.
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post #2 of 7
That's good to hear you're able to OC 4850 to 700/1100 and staying under 70C. Just starting to test my CF 4850's now. Without changing fan speed in profile, the fan ain't doing the work at all. Bumped to 65% and temps dropped to 60's.
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post #3 of 7
Thread Starter 
Yea... I run my fan @ 45% and which I can barely hear. It runs 63c under full load and idles nice cool 42c (although with folding it never sees that anymore). I do have a side case fan blowing directly onto the card though so I am sure that helps.
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post #4 of 7
Most computer parts use thermal grease, some thermal grease do have a burn in period from where it seeps into every uneven surface there is on the GPU/heatsink. Usually a good week or 2 will be sufficient
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post #5 of 7
Thread Starter 
That sounds about like the right time period... +rep

Would the slightly cooler temps be a reason for a higher stable OC?
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post #6 of 7
Could be a burn-in period, but I think that would depend on the type of TIM the manufacturer uses. Regarding your temp drops--could it be because the ambients are cooler too? Well, anyhoo, more OC is always better! Congrats. Now, if only a burn-in period were true for my x1950pro--you'd think two years burn in would allow me to OC more than 20MHz core and 90MHz memory, LOL!
    
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post #7 of 7
Thread Starter 
Room stays a pretty steady temp... Decent climate control always set @ 72f so it will have the typical +/- 2deg throught out the day.
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