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CPU Usage Low During Stress, Help Please

post #1 of 13
Thread Starter 
Let me start off by saying that this problem is my friend's, and that I am trying to help him as a favor and came to OCN because it has always found or referred me to solutions.

The fact is that his Q6600 is running at very low usage levels while high stress applications are running. He plays Crysis with an 8800 Ultra DX10 at 15-20 FPS at some high resolution. He's not as worried about Crysis performance as he is about the reason that his quad is only using 35% MAX when gaming, and it often results in poor performance...or at least WORSE performance.

If you need more info on his rig, I'll try to get it to you. For example, he as a P5W Deluxe and (I think) 4 gigs of RAM.

All help appreciated...
    
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post #2 of 13
i believe crysis doesnt use 100% of the CPU (or of a quad..), or i may be wrong. check his temps, and see if theres any thermal throttling going on.

Also, check if there are any patches for Crysis that utilize quad cores.
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post #3 of 13
he is running Vista 64 bit im guessing?
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post #4 of 13
CPUs are not like GPUs where they work 100% at all times.

CPUs are programmed to "take care" of something, and after it does it will sit there and wait for the next command. Your friends quad easily handles anything thrown at it, so it has low usage.

On top of that, most games are not multicore coded so the absolute max they can use is 25%. Only new games will use more than that, and still probably won't even be over 50%.


Highest i've seen in crysis is 55% and that was when I had 3 tornados going through a town.
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post #5 of 13
Vista 64?

All 4 cores activated in bios?

Affinity set?

what resolution on crysis? i have a gtx, and cant play on 1920x1200 without unplayable lag.
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post #6 of 13
Thread Starter 
ill look into patches, and yes, i believe hes using vista 64 for his 4 gigs of ram...i'll try to get his temps...thanks so far
    
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post #7 of 13
Quote:
Originally Posted by x7337H View Post
ill look into patches, and yes, i believe hes using vista 64 for his 4 gigs of ram...i'll try to get his temps...thanks so far
See my post above, its normal.
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by mnishimura00 View Post
Vista 64?

All 4 cores activated in bios?

Affinity set?

what resolution on crysis? i have a gtx, and cant play on 1920x1200 without unplayable lag.
Unless the 4 cores aren't activated by default, then yes they should all be running...I have asked him to run it on lower resolutions to see if that is the problem...

Murlocke: If that's so, then how come my 3.2ghz Xeon Quad-Core is at much higher usage levels? His is stock, I don't think it can simply shrug of Crysis. Thanks for the insight though, I'm not ruling out that you may be right.

Lemme get him to run a orthos or P95...

Thanks so far...
    
CPUMotherboardGraphicsRAM
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Hard DriveOptical DriveOSMonitor
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post #9 of 13
you should run prime95 small fpus on all four cores to really see about processor usage. you may have a problem if the cpu isnt 100 percent when running p95.
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beast iv
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Gateway FX 6860
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post #10 of 13
Quote:
Originally Posted by x7337H View Post
Unless the 4 cores aren't activated by default, then yes they should all be running...I have asked him to run it on lower resolutions to see if that is the problem...

Murlocke: If that's so, then how come my 3.2ghz Xeon Quad-Core is at much higher usage levels? His is stock, I don't think it can simply shrug of Crysis. Thanks for the insight though, I'm not ruling out that you may be right.

Lemme get him to run a orthos or P95...

Thanks so far...
Orthos only supports dual cores unless you run two instances and you need the latest version of P95 for quad cores. Get it Here

And i'm not trying to sound like a know it all, but this seriously is normal.. I do have the same processor as him. Average CPU usage during walking around in crysis is 15%, and 25-35% when blowing stuff up.

Go throw some grenades at some buildings or something and youll see it spike.
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The Leviathan
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OSMonitorKeyboardPower
Windows 10 Pro x64 65" LG 65E6P (4K OLED) Ducky DK9008 Shine 3  Corsair AX860 
CaseMouseAudioAudio
Corsair Obsidian 750D Logitech G502 Proteus Sprectrum Denon X7200WA (Receiver) 2x Klipsch RF-7 (Front Speakers) 
AudioAudioAudioAudio
4x Klipsch RS-62 (Surround Speakers) Klipsch RC-64 (Center Speaker) 4x Klipsch CDT-5800-C II (Atmos Speakers) 2x SVS PB16-Ultra (Subwoofers) 
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