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CPU bottleneck?

post #1 of 18
Thread Starter 
in left 4 dead during a horde in the sewers and a few other levels my GPU usage drops to 35-50% and framerate goes in the toilet 29-30 FPS, CPU stays around 90% is that a CPU bottleneck?
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post #2 of 18
Seems bottleneck for me... does that always happen in the same are of the game? Don't you have any other cpu intensive program running in the background?
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post #3 of 18
Thread Starter 
Quote:
Originally Posted by matroska View Post
Seems bottleneck for me... does that always happen in the same are of the game? Don't you have any other cpu intensive program running in the background?
i just tested it and its always in the same part of the level where you enter the sewer and you need to raise the gate to go across it it seems as soon as i exit the drainage pipe my framerate drops from 220 to barely over 60.

and only program in the background is Xfire and steam
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post #4 of 18
But a drop from 220 to 60 doesn't kind of suit in bottleneck...

Do you have problems with other games? or just this one?
220 is too much FPS for a bottlenecking CPU i believe. Maybe it is just that level that takes more of the CPU... Let's wait for some other info from other users, as i don't own the game
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post #5 of 18
Quote:
Originally Posted by philhalo66 View Post
i just tested it and its always in the same part of the level where you enter the sewer and you need to raise the gate to go across it it seems as soon as i exit the drainage pipe my framerate drops from 220 to barely over 60.

and only program in the background is Xfire and steam
Hmm.. must be the cpu..

Have you tried unlocking that bad boy? or even a higher oc?
post #6 of 18
Thread Starter 
Quote:
Originally Posted by matroska View Post
But a drop from 220 to 60 doesn't kind of suit in bottleneck...

Do you have problems with other games? or just this one?
220 is too much FPS for a bottlenecking CPU i believe. Maybe it is just that level that takes more of the CPU... Let's wait for some other info from other users, as i don't own the game
just left 4 dead 1

Quote:
Originally Posted by Phoriver View Post
Hmm.. must be the cpu..

Have you tried unlocking that bad boy? or even a higher oc?
yeah my mothebroard has alot of issues so its not stable unlocked at any voltage and anything over 3.1 isn't stable at any voltage.
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post #7 of 18
My Phenom II x3 2.8GHz doesn't drop that low under any circumstances in L4D 1 or 2. I don't think it's a bottleneck, there's probably something else going on that's causing your FPS to drop to that level. Check the forums/Google for other people with similar problems. Also try messing around with your in-game graphics settings.
Edited by Fortunex - 6/12/11 at 7:18pm
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post #8 of 18
Quote:
Originally Posted by Phoriver View Post
Hmm.. must be the cpu..

Have you tried unlocking that bad boy? or even a higher oc?
OMG is that Pho in your avatar, yum
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post #9 of 18
Thread Starter 
Quote:
Originally Posted by Fortunex View Post
My Phenom II x3 2.8GHz doesn't drop that low under any circumstances in L4D 1 or 2. I don't think it's a bottleneck, there's probably something else going on that's causing your FPS to drop to that level. Check the forums/Google for other people with similar problems. Also try messing around with your in-game graphics settings.
you also have a GTX 460 which is like 8888888888888888888888 times faster than an 8800GT.

it has to be something on my MoBo then causing the issue. or maybe my ram isn't fast enough
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post #10 of 18
RAM speed makes next to no difference in games (no more than a 5% FPS difference from what I've seen), and wouldn't cause an FPS drop like that I don't think.

You only have 2GB of RAM though, how's your RAM usage during the game? It could be page swapping (or whatever it's called) in that area.
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