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Overclocked 3850 AGP, is this too high?

post #1 of 9
Thread Starter 
669/829 default, overclocked to 810/1017 reported by GPU-Z. Seems stable when I run Real-time HDR IBL. Idles at 45C and 50~51C @ 85% load. Does anyone have a higher overclock? Can I go higher?
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post #2 of 9
Go until it won't go anymore Lookin good.
3D Mark06 please
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post #3 of 9
Just go as far as it will let you. It will probably be limited by voltage, not temps.
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post #4 of 9
Thread Starter 
Ok, I'm at 823/1035 reported by lastest version of GPU-Z. What are the signs of instability? Will my screen go blank? or BSOD?

The last time I installed 3DMark06 and ran a benchmark the score was under 10,000 I remember the score was around 8000+ mainly because of my CPU limitation.
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post #5 of 9
Finally, someone with a 3850 agp! Post in this thread. I'd like to see you break my 20K score.
post #6 of 9
Thread Starter 
Ok, I found a person that's selling me a 3.4ghz P4 on craigslist for $40. After I get that CPU and overclock it I'll run some more tests.

*update* @ 823/1035 my video card went out on me after running rthdribl for a few minutes. I lowered it back to 800/1015 and everything seems fine. I'm going to have to baby step and see what's my core/mem limit.
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post #7 of 9
3850 agp overclocked to 830/1030 for now here. 840 core seems to be unstabble in furmark stability testing but I am not yet sure about that. Currently have it running 2 hr long benchie at 1280 x 1040 at home. How does a 3850 agp stack up against a 3870 when its overclocked to the above level?

edit
Too bad this card gets hammered by aa in almoust any game I test it in. aa off I see a lot more fps gains from oc then with aa on.
Edited by DeadSkull - 7/11/08 at 9:00am
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post #8 of 9
Thread Starter 
Quote:
Originally Posted by DeadSkull View Post
3850 agp overclocked to 830/1030 for now here. 840 core seems to be unstabble in furmark stability testing but I am not yet sure about that. Currently have it running 2 hr long benchie at 1280 x 1040 at home. How does a 3850 agp stack up against a 3870 when its overclocked to the above level?

edit
Too bad this card gets hammered by aa in almoust any game I test it in. aa off I see a lot more fps gains from oc then with aa on.
Can you play games stablely with those overclocks?
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post #9 of 9
Yeah. Ran graw2, most gpu intensive game I have so far on my computer no problem. So far before I game I run the overclock through furmark stability and see if its at least stable 15 min, but I go 30+ at the highest res my monitor can support. Core at 830 seems to be the magic number for me, doesn't look like I can go past that, furmark crashes fast at 840 core. Right now testing ram oc going 1050 +.

edit
Tried to play some counter strike source (hl2 engine) this mourning and it kept crashing until i lowered my oc to 720 core 950 memory (max oc CCC caps you too btw, am I onto something here?). Really odd considering that source is not that gpu intensive and I was running stable in other games such as graw2 and rb6 las vegas 1. Uninstalled 8.6 hotfix drivers and installed older 8.2 drivers from ati and older sapphire drivers.
Edited by DeadSkull - 7/12/08 at 10:48am
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