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Getting Random 100% CPU Ussage.

Tags:
  • Motherboards
  • Computers
  • CPUs
  • FPS
  • Processors
Last response: in CPUs
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June 15, 2014 4:12:59 AM

Hello.

I upgraded my computer a couple weeks ago. Got a new motherboard, a processor, and some more RAM. The first two days it worked perfectly. For example, before the upgrade, I could only play League of Legends at the lowest settings, and I only had about 30 fps at most. But now I could play at max settings, getting 120 (althought I capped them at 60). But after these two days I started getting random FPS drops. Every 5 minutes or so FPS went from 60 to 5-7. This lasted for about 2 minutes. Then back to 60. I tried lowering settings, capping fps at 25, but it was the same. This happens with every game I play. Took me some time to realize that I was getting 100% CPU Ussage, and that's what was causing the drops. So I played a game in windowed mode and opened task manager and resource monitor. It's completely random. No process/service uses more CPU. They use the same percentage of CPU, regardless of my current fps, but the ussage goes up to 100% for no apparent reason. Also, occasionally I get this 100% Ussage when watching videos or even idle, but that doesn't happen half as often as when playing.

My temps are normal. When I upgraded it I also cleaned it up and put new termal paste on my graphic card.

I play on 1440x900, my monitor's native resolution. My specs are the following:
OS -> Windows 7 64-bits
Motherboard -> MSI G41M-P33 Combo
Processor -> Intel Core2 Quad CPU Q6600 2.40GHz
RAM -> 4GB
Graphic Card -> NVIDIA GeForce GT 440

More about : random 100 cpu ussage

June 15, 2014 4:54:26 AM

I'm on Win8 now, so I can't check, but I think there is a checkbox in Task Manager that says "Show tasks from all users" right below the list of tasks.
That should let you find out which process is using all the CPU when the fram rate drops.

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June 15, 2014 5:19:56 AM

Same thing. I can't find any process that uses all the CPU there either. Normally I should have a 30% CPU usage when playing games, but something is eating up to 70% of my CPU.
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June 15, 2014 5:21:59 AM

you get the random 100% cpu usage because your gpu is bottlenecking your cpu :) 
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June 15, 2014 5:57:22 AM

So I gotta get a new graphic card?. My current one isn't that bad. Or is there any other way to fix this bottleneck?.
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June 15, 2014 10:08:10 AM

Okay, guess I'll have to buy one. Is there any way to improve my computer's performance as of now? I'm afraid I won't be able to get a new card for a few months.
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June 15, 2014 10:10:10 AM

BigCacahuete said:
Okay, guess I'll have to buy one. Is there any way to improve my computer's performance as of now? I'm afraid I won't be able to get a new card for a few months.


when you have the money do it because the bottlenecking is bad for your cpu and it may cause death O_O
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June 15, 2014 12:09:52 PM

I haven't had a decent computer since 2003. Now that I thought I finally had got one.. Well, anyway, thanks for your answers. Hopefully once I get a new graphic card this pc will be the one ^^.
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October 12, 2014 1:53:01 PM

Whoever brought the word "bottlenecking" into this discussion has probably no idea what the term means. Do everybody a favour and stop using it until you have some basic knowledge what it is.
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