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6800GT = unclockable !!!

B

BakedGoods

Limp Gawd
Joined
Jul 23, 2004
Messages
312
Okay, so here's the deal. I do a stock run of 3DMark05 with my new BFG 6800GT. I pull off a 4832. Now, I overclock it to about 420/1000. I get 4841. Interesting... I then overclocked my 2D clock rates (which usually are always stock) to 420/1000 and BAM! 5252 in 3DMark05. What gives?!

The RivaTuner temperature/clock rate monitor doesn't show a clock rate increase when entering a game (thus not entering 3D mode). So basically, there are two possibilities, either something is preventing my card from going into 3D mode (which I think is the case) OR something is preventing me from OC'ing my 3D mode, therefore RivaTuner's clock rate monitor is simply wrong.

Any suggestions? I'm using the 66.72 WHQL drivers, my system specs are in my sig ;) Any help would be appreciated!!
 
Have you tried running something other than 3dmark05? Try rthdrbl or something, and just watch the clocks in rivatuner.
 
I noticed that when I OC'd my eVGA 6800GT to 400/1100 from stock (367/1000) my scores were a little better (4400 range - stock, 4500 range - 400/1100) I then toned it down to 385/1100 to see what it would do and got 4918. I wanted to hit 5K so I tried 390/1150 (since I knew that 400/1100 would LOWER my score) and I got 5007. I am also using 66.72's.
 
i had the same issue with 3dmark05. i would oc the 3d end to 430/1150. i would score around 42xx to 43xx. when i oc the 2d side i go from getting the 43xx scores to 5xxx scores. my last benchmark was 5703 on a XP2500M =] see sig...but it is very interesting with the 2d and 3d clocks
 
i am using coolbits and my stock 370 BFG 6800 GT scored 4360. OK no problem. then i let coolbits autodetect. it detected at 434/1.2. that was good i thought...so i ran 3dmark again and got 5505. I am definitely happy with that. i haven't clocked it back down because i've been playing games at those settings since 3dmark05 came out. no artifacts, lock-ups, or anything. should i be worried about leaving it clocked that high?

http://service.futuremark.com/compare?3dm05=50126
 
gmkmay said:
Have you tried running something other than 3dmark05? Try rthdrbl or something, and just watch the clocks in rivatuner.
Click to expand...
Yes, I've tried both rthdribl and AquaMark, with no luck.

Another thing that is very bizarre that that when I test different clocks with CoolBits they always fail! Even my STOCK clocks fail in coolbits!!


[RIP said:
Zeus]i had the same issue with 3dmark05. i would oc the 3d end to 430/1150. i would score around 42xx to 43xx. when i oc the 2d side i go from getting the 43xx scores to 5xxx scores. my last benchmark was 5703 on a XP2500M =] see sig...but it is very interesting with the 2d and 3d clocks
Click to expand...
Yes, very interesting. What drivers are you using?
 
What are stock 2D clocks? Has anyone tried to bump it up to 350/1000 (if default is lower than 3D speeds).
 
2D clocks are 370/1000. 3D clocks are 420/1000. Only when I bump up the 2D clocks to 420/1000 do I get an preformance increase =S 3D mode doesn't want to kick in!
 
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