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BFG 7800 GS First overclock - wow.

post #1 of 21
Thread Starter 
Ok, so I tried to OC my BFG 7800 GS OC. I was quite surprised with the results.

Stock = 400/625 => 3DMark06 = 2695

OC'ed = 500/702 => 3DMark06 = 3117 (reached only 47C)

(I used Rivatune to modify)

I believe that I could push the memory to 750, but I'm a little afraid.

I was shocked at how fast the CPU could be pushed with the aircooling, but my case temps are very low (80F or so). Also I've got my case open right now (but even closed, I have a side fan).

I was also able to turn the fan down from the stock 79% setting to 50% setting (to match noise level to my CPU fan), and it idles at 41C and under load got up to 47C.

ANother thing. I downloded coolbits 2.0 reg-edit and it did not seem to open up any type of OC editing from the Nvidia toolbox. Installing rivatune, seemed to enable the choice of "automatic overclocking" but certainly no slide bars. Is it possible to "undo" the coolbits? or is it ok to just leave it? Would re-installing the nvidia drivers undo what coolbits did?

Thanks
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post #2 of 21
You mean your " BFG 6800 GS OC"?
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post #3 of 21
Thread Starter 
Quote:
Originally Posted by ckp64
You mean your " BFG 6800 GS OC"?
Looks like my profile was incorrect (just fixed it). I did mean 7800GS. I probably need to do some stability tests, but I did not see _any_ artifacts running 3DMark06. In real life, it seemed like I could run Quake4 at higher settings with AA and it was super smooth.
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post #4 of 21
Is that AGP or PCIE?
post #5 of 21
nice dude, see if you can push it a little more.. my evga 7800GS CO is at 500/1525 stock is 430/1300, i get 4.5k in 06 and around 7k in 05

and thats agp wudaddy
    
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post #6 of 21
Thread Starter 
Quote:
Originally Posted by wudaddy
Is that AGP or PCIE?
Its an AGP card : http://www.bfgtech.com/7800GS_256.html

Recently I made the decision to stick with AGP for now and wait for the DX10 stuff to sort itself. I feel like this card should keep me going for at least 1 more year. After that I'll definitely move to dual-core Intel and PCIE.
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post #7 of 21
Thread Starter 
Quote:
Originally Posted by burnstudios
nice dude, see if you can push it a little more.. my evga 7800GS CO is at 500/1525 , i get 4.5k in 06 and around 7k in 05

and thats agp wudaddy
Using RivaTuner, if I push the DDR to 762, it gives me the message that the driver failed to pass some internal test. How do you get past that?
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post #8 of 21
luck of the draw i guess... if your getting 750 thats 1500mhz , remember its 2x on your memory.
    
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post #9 of 21
I had an EVGA 7800gs a while back and had similar results. If you consider the default (refrence) clocks are 475/1300, this thing oc's like MAD with the stock cooler, WC+VMOD= pure insanity.
post #10 of 21
how can you water cool one of these things? i mean yeah you can .. but what about the hsi chip? it need a heatsink on it.. and i have looked high and low for aftermarket cooling for it and i cant find anything ( sorry for hijackin the thread lol )
    
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