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Whats bottlenecking me my cards!?

post #1 of 32
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I just sold my SSD's which had my OS installed. I did a reformat and now i'm not seeing 100% load on both cards. I'm playing The Witcher 2 @ Ultra Settings.

Before when I had my SSD using my OS I'd see my frames steady at around 30-40fps @ ultra settings, now I see around 20fps & my cards are only at 50% load. Even if I drop down to High settings its the same thing. Before @ high settings i'd be steady at 60fps. Now i'm at low 50's with cards loading at 60%. Something isn't right.

Help please!

+rep for helpful input. Thanks!
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post #2 of 32
how slow is that hdd you got? how much rpm?
if its 5400rpm could be your problem,

but honestly i would say your cpu for 2 6950 is not the best, amd tend to be on the slow side compared to Intel,

Is your cpu maxed out while you are playing games?
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post #3 of 32
I would make sure your drivers are up to date and make sure you installed your chipset driver and things like that.

I would also try to get your phenom to 4.0 ghz.... That cpu will bottleneck your cards pretty bad anyways at any clock
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post #4 of 32
Thread Starter 
Quote:
Originally Posted by Darkshowdo View Post
how slow is that hdd you got? how much rpm?
if its 5400rpm could be your problem,

but honestly i would say your cpu for 2 6950 is not the best, amd tend to be on the slow side compared to Intel,

Is your cpu maxed out while you are playing games?

They are WD Blacks 7200RPM, but The Witcher has always been installed on my WD drives. Before they were in Raid 0 tho... Not anymore, using them seperate now. Is that the problem?

& i'm not 100% sure if my CPU is maxed out. How would I check that in game?

Quote:
Originally Posted by killeraxemannic View Post
I would make sure your drivers are up to date and make sure you installed your chipset driver and things like that.

I would also try to get your phenom to 4.0 ghz.... That cpu will bottleneck your cards pretty bad anyways at any clock
I'll check all this right now. I'm sure everything is updated ok tho.

Its hard to get the C2 rev. 955 to 4ghz. Expecially with the crap cooling in my case. I'm @ 3.5ghz ATM.
Edited by WizrdSleevz - 8/7/11 at 3:08pm
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post #5 of 32
Just run anything like coretemp or even crtl alt del, and check it while your in game.

but i would put my money on your cpu right now.
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post #6 of 32
Thread Starter 
Quote:
Originally Posted by Darkshowdo View Post
Just run anything like coretemp or even crtl alt del, and check it while your in game.

but i would put my money on your cpu right now.
I'm using the same CPU I was using before tho..
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post #7 of 32
This is only a guess, but if the only thing you changed which relates to the game is that your HDDs are no longer in a raid0, then that would be the first thing I would assume is wrong. It's possible that the amount of information needed from the HDD in order to max out your cards can not be read fast enough. A raid0 would have effectively doubled your read rates and you said your cards run at like 50%. The math is there...
post #8 of 32
Thread Starter 
Quote:
Originally Posted by Phantom_Dave View Post
This is only a guess, but if the only thing you changed which relates to the game is that your HDDs are no longer in a raid0, then that would be the first thing I would assume is wrong. It's possible that the amount of information needed from the HDD in order to max out your cards can not be read fast enough. A raid0 would have effectively doubled your read rates and you said your cards run at like 50%. The math is there...
That sounds like it could be the problem, I just cant seem to understand how a HD would bottleneck both my cards that much.
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post #9 of 32
My 1100T @4.1GHz/3GHzCPU-NB bottlenecks my 5870s. IMO your CPU is the culprit.
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post #10 of 32
Quote:
Originally Posted by Darkcyde View Post
My 1100T @4.1GHz/3GHzCPU-NB bottlenecks my 5870s. IMO your CPU is the culprit.
That is not true. Yes, there is a degree at which your CPU can bottleneck your GPU, but that would be in the case of dual-core processors running quad-core CPU optimized games. Sure, you can change for a sandy bridge i5/i7 processor and your FPS will go up, but keep in mind that in this case, the CPU is playing a role in increasing the FPS and not the GPU.

@ OP, your CPU is fine. It almost has the same processing power as my Core 2 Quad. Try installing OS on one HDD only.
Edited by HopeUTKN - 8/7/11 at 3:45pm
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