cpu running at 100%

thomasjcat · 3rd July 2009, 13:01

My mates pc shows 100% cpu processes and the graph shows 100% also, hes running windows xp, sp3, ran all the scans in safe mode, i.e. malware bytes S.A.D, super anti spyware, AVG and nothing is found. Any ideas.

nozzer · 3rd July 2009, 13:09

Is he running anti-virus ?

Quite a few of them are very good at running the processor at 100%

Take a look in the task manager and find out which task is hogging the processor.

bash213001 · 3rd July 2009, 13:14

not got 2 antivirus proggy's running mate has he,also could be a driver conflict,remove graphics driver and reinstall it,had that once

thomasjcat · 3rd July 2009, 14:25

He's running AVG only, had his pc wiped recently, could it be the driver for the graphics card.

RAB - P · 3rd July 2009, 14:34

has he got virgin PCguard running on his machine somtimes that kick in an takes all the processor power

(oops just saw last post.)

daveleebond · 3rd July 2009, 17:50

windows key+r, taskmgr, OK
Processes Tab
Click on CPU column header to sort (might have to click twice to sort correctly high to low)
what ones are using the highest % (apart from system idle)

thomasjcat · 3rd July 2009, 21:20

In task manager, system idle 50%, task manager 50%, total cpu usage at the bottom is 100%, the graph is 100%.

nozzer · 3rd July 2009, 21:26

Strange, System Idle usually doesn't contribute towards the graph or processor load. It System idle is 50% then I would expect the processor to be only 50% busy.

Task manager using 50% is an indication of something seriously wrong in Kernel mode. Very likely a driver is sitting in a loop or something similar. This could be down to all kinds of problems from damaged drivers to mis-configured or spurious interrupts.

witchy · 3rd July 2009, 23:33

Last time I saw this was when WMP11 was trying to add an incomplete Divx movie to the list of shares, the thing hogs your CPU endlessly until you remove the dodgy file.

thomasjcat · 4th July 2009, 15:59

Thanks lads for a few ideas, I've got a feeling its driver for his graphics card

3rd July 2009, 13:01	#1 (permalink)
thomasjcat DW Top Poster ++ Join Date: Apr 2006 Location: south shields Posts: 747 Thanks: 90 Thanked 21 Times in 12 Posts	cpu running at 100% My mates pc shows 100% cpu processes and the graph shows 100% also, hes running windows xp, sp3, ran all the scans in safe mode, i.e. malware bytes S.A.D, super anti spyware, AVG and nothing is found. Any ideas.

3rd July 2009, 13:09	#2 (permalink)
nozzer Moderator+ Join Date: Jan 2005 Location: Max pestering me for rechargable batteries for something or other ???? Posts: 6,049 Thanks: 5 Thanked 123 Times in 75 Posts	Re: cpu running at 100% Is he running anti-virus ? Quite a few of them are very good at running the processor at 100% Take a look in the task manager and find out which task is hogging the processor.

3rd July 2009, 13:14	#3 (permalink)
bash213001 Senior Member +++ Join Date: Mar 2005 penguinbbgore Champion! Posts: 321 Thanks: 4 Thanked 1 Time in 1 Post	Re: cpu running at 100% not got 2 antivirus proggy's running mate has he,also could be a driver conflict,remove graphics driver and reinstall it,had that once

3rd July 2009, 14:25	#4 (permalink)
thomasjcat DW Top Poster ++ Join Date: Apr 2006 Location: south shields Posts: 747 Thanks: 90 Thanked 21 Times in 12 Posts	Re: cpu running at 100% He's running AVG only, had his pc wiped recently, could it be the driver for the graphics card.

3rd July 2009, 17:50	#6 (permalink)
daveleebond DW Guru Join Date: Jan 2007 Location: Manchester Posts: 2,347 Thanks: 35 Thanked 55 Times in 46 Posts	Re: cpu running at 100% windows key+r, taskmgr, OK Processes Tab Click on CPU column header to sort (might have to click twice to sort correctly high to low) what ones are using the highest % (apart from system idle)

3rd July 2009, 21:20	#7 (permalink)
thomasjcat DW Top Poster ++ Join Date: Apr 2006 Location: south shields Posts: 747 Thanks: 90 Thanked 21 Times in 12 Posts	Re: cpu running at 100% In task manager, system idle 50%, task manager 50%, total cpu usage at the bottom is 100%, the graph is 100%.

3rd July 2009, 21:26	#8 (permalink)
nozzer Moderator+ Join Date: Jan 2005 Location: Max pestering me for rechargable batteries for something or other ???? Posts: 6,049 Thanks: 5 Thanked 123 Times in 75 Posts	Re: cpu running at 100% Strange, System Idle usually doesn't contribute towards the graph or processor load. It System idle is 50% then I would expect the processor to be only 50% busy. Task manager using 50% is an indication of something seriously wrong in Kernel mode. Very likely a driver is sitting in a loop or something similar. This could be down to all kinds of problems from damaged drivers to mis-configured or spurious interrupts.

3rd July 2009, 23:33	#9 (permalink)
witchy DW Elite Master ++ Join Date: Jul 2005 Posts: 16,987 Thanks: 1,132 Thanked 626 Times in 454 Posts Blog Entries: 1	Re: cpu running at 100% Last time I saw this was when WMP11 was trying to add an incomplete Divx movie to the list of shares, the thing hogs your CPU endlessly until you remove the dodgy file. __________________ *witchy now and forever*

4th July 2009, 15:59	#10 (permalink)
thomasjcat DW Top Poster ++ Join Date: Apr 2006 Location: south shields Posts: 747 Thanks: 90 Thanked 21 Times in 12 Posts	Re: cpu running at 100% Thanks lads for a few ideas, I've got a feeling its driver for his graphics card

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