Tom's Hardware > Forum > CPU & Components > CPUs > PCU Usage hovering around 25% please help

PCU Usage hovering around 25% please help

Forum CPU & Components : CPUs - PCU Usage hovering around 25% please help

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Fletch206   06-11-2009 at 10:34:30 AM

I have a very fast custom built PC with 8 GIGS of RAM however sometimes my CPU usage starts hovering around 25% even though there are no processes using memory in task manager. This is causing a problem when I try and play games it makes the games lag really bad. It seems like this happens randomly and usually goes away when I restart but now the restart doesn't work.. it's still doing it.

I'm using Windows Vista Ultimate 64bit

I can't for the life of me find out what's causing this lag... it doesn't look like my AVG is running anything either.

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Bronze CPUs badge cjl   06-11-2009 at 11:10:12 AM
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Look in task manager to find out what is using the CPU time. Make sure you have the "show processes from all users" box checked.

------------------------------ Asus P6T deluxe
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Fletch206   06-11-2009 at 11:14:16 AM
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Like I said... I've looked through task manager already and there is nothing that jumps over 2% and yes it's showing all processes from all users.

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p05esto   06-11-2009 at 02:51:27 PM
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You've got some software conflicting, I'm pretty sure. Could also be a bad driver. I had that happen to me a few years ago as well and couldn't positively figure it out either. But I seem to recall uninstalling software until I found the conflict and CPU went back down. (but I don't remember for sure)

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leo2kp   06-11-2009 at 02:57:38 PM
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You can sort your process by %CPU usage. If you have 4 processes at 2% each, there is your 8%. Just do it and find out where it's going. Then determine if you need those processes.

------------------------------ "He is no fool who gives what he cannot keep to gain what he cannot lose" -- Jim Elliott
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Scotteq   06-11-2009 at 03:00:01 PM
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Download and run Process Explorer - It's basically Task manager on Steroids.

http://technet.microsoft.com/en-us [...] 96653.aspx

It *will* tell you what processes are using what resources.

------------------------------ Which Chip? Well, it depends on which set of thieving b@stardz you choose to support: The ones who use insider trading to enrich themselves while running their company into the ground, or the ones who illegally pay vendors to not support the first group.
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Fletch206   06-11-2009 at 07:00:38 PM
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Thanks for the link Scotte

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