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Anyone overclocked 3870X2 on stock GPU cooling?

post #1 of 11
Thread Starter 
As the title suggests, if so what speeds you clocked to?
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post #2 of 11
Quote:
Originally Posted by Chaos Prime View Post
As the title suggests, if so what speeds you clocked to?
877/2100
High 50's low 60's with fan @ 50%
Mighty-iTX
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Mighty-iTX
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post #3 of 11
865/1900 just to test Overdrive
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post #4 of 11
find and talk to NCspecV81 he will tell you everything you need to know about that card.
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post #5 of 11
I clocked my 3870 to 860 without a problem but Im not sure how the x2 does on heat. If you turn up the fan you should be able to go pretty far if you dont mind the noise
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post #6 of 11
Thread Starter 
Ok the funny thing was my stock settings are as follows

825/901

I upped these to

852/950

And i got zero performance gains lol in 3D Mark. May be the jump was too small? but funny none the less
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post #7 of 11
Hey, if you keep the card cool you will find that you can actually overclocks ALOT better.

Also the reason you may not be noticing any gains is because of the program you are using to overclock. If you are using Rivatuner/atitool/CCC, you are only overclocking one gpu while leaving the second at stock frequencies. In fact this actually dropped my performance and caused a lot of instability.

to overclock you'll need amdgpuclock tool which I have included in this post. I included the toollib file that I already integrated it into the actual folder as well.

3dmark06 I have ran 918/1043(2098) on the X2 and matching core on the hd3870.

I don't run any higher to game with, but I have successfully stabalized 945mhz real on the core with water. However, 891 was my best attempt on air.
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post #8 of 11
Thread Starter 
Cool thank, much appreciated, why not run 2 3870X2 and you only run 1? surely you get better performanace no?
Chaos Drive
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CPUMotherboardGraphicsRAM
Phenom 9500 @2.86GHZ Asus M3A79-T PowerColor 3870 X2 Corsair 2GB DDR2 XMS2-6400C4 TwinX (2x1GB) 
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Samsung Spinpoint 1TB Pioneer 212D DVR SATA Windows XP Media Centre OCZ StealthXStream 600w Silent SLI Ready ATX2 PSU 
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Standard ATX Case 
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Chaos Drive
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CPUMotherboardGraphicsRAM
Phenom 9500 @2.86GHZ Asus M3A79-T PowerColor 3870 X2 Corsair 2GB DDR2 XMS2-6400C4 TwinX (2x1GB) 
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Samsung Spinpoint 1TB Pioneer 212D DVR SATA Windows XP Media Centre OCZ StealthXStream 600w Silent SLI Ready ATX2 PSU 
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Standard ATX Case 
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post #9 of 11
Thread Starter 
My 2nd core Engine clock usng that tool shows the clock at 297, is this normal?
Chaos Drive
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Standard ATX Case 
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Chaos Drive
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Phenom 9500 @2.86GHZ Asus M3A79-T PowerColor 3870 X2 Corsair 2GB DDR2 XMS2-6400C4 TwinX (2x1GB) 
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post #10 of 11
Quote:
Originally Posted by Chaos Prime View Post
Cool thank, much appreciated, why not run 2 3870X2 and you only run 1? surely you get better performanace no?
Theoretically yes, quad-fire does give performance gains, but it will not be realized until devs code games to utilize it and ATI can optimize drivers to deliver that performance.
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Always Changing
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