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CPU overusage


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#1 kognitif

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Posted 11 December 2012 - 08:28 PM

A week ago my CPU started doing something strange. It runs at 100% usage, all 4 cores, even at desktop with no applications running, but only if task manager (or process explorer, or anything that monitors each individual process's CPU usage) is not open. It's almost like something hoards the CPU and then immediately hides when task manager tries to look at it. Measured in Speedfan, which does not affect the usage like task manager does, the usage immediately shoots up to 100% the moment task manager is closed, and the core temp spikes very quickly (but the fan speeds do not change). It doesn't happen in safe mode, however.

I have run a Malwarebytes Anti-Malware full scan and have tried closing almost every process and service, but the problem persists. Maybe a driver problem?


OS: Windows 7 x64
CPU: AMD Athlon II X4 640 3.0GHz

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#2 dc3

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Posted 11 December 2012 - 08:47 PM

Please use the following link to provide us with information about your computer so that we can assist you.

How to Publish a Snapshot using Speccy

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#3 kognitif

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Posted 11 December 2012 - 10:10 PM

http://speccy.piriform.com/results/mDc6vSpQfVnisHK8UykCa0J

#4 jhayz

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Posted 12 December 2012 - 01:09 AM

Do you have Comodo Internet Security and Microsoft Security Essentials installed and running at the same time? Plus your Hard drive is also full according to Speccy.

Partition 1
Partition ID:
Disk #0, Partition #1
Disk Letter:
C:
File System:
NTFS
Volume Serial Number:
8CF4D102
Size:
918GB
Used Space:
913GB (100%)
Free Space:
5.21GB (0%)
Partition 2
Partition ID:
Disk #0, Partition #2
Disk Letter:
D:
File System:
NTFS
Volume Serial Number:
24D4C908
Size:
13.6GB
Used Space:
11.9GB (88%)
Free Space:
1.67GB (12%)


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#5 dc3

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Posted 12 December 2012 - 11:27 AM

As jhayz posted, your hdd is full. The hdd requires a certain amount of free space, also known as swap space, in order to function. With the smaller hdds used a few years ago the suggested amount of space was 15%, but with the larger hdds being used now that would be a huge amount of free space. The bottom line is that you need to free up a great deal of space. If there is room in the case you could install a second hdd to be used for storage and transfer data from the full one to it.

As jhayz observed you have both Norton and MSE installed on this computer. If both of these are active it can lead to instability issues and false positives. I would suggest that you choose one and use it alone. If you feel that you need to augment your security there are programs such as Malwarebytes and SUPERAntiSpyware which are not active but are very effective as long as you update the definitions before running scans.

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#6 Artrooks

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Posted 12 December 2012 - 11:45 AM

Hello,

As jhayz and dc3 have pointed out, your first priority is to free up space on Drive C:.


It looks as if you are running the Comodo Firewall (Cmdagent.exe). "The Cmdagent.exe file belongs to the Comodo Firewall and is known to cause 100% CPU usage problems on Windows computers." (reference)
  • Suggestion: Uninstall all Comodo software and use Microsoft Security Essentials along with the Windows 7 firewall.

(Point of information):
From the Speccy Snapshot
Hard Drives
ST310005 28AS SATA Disk Device
Manufacturer: Seagate
S.M.A.R.T
01 Read Error Rate: 111 (099 worst) Data 000242A581 <==== 37922177 (converted from hex)
05 Reallocated Sectors Count: 100 (100) Data 000000000B <==== 11 (converted from hex)
07 Seek Error Rate: 084 (060) Data 0011CC2959
C3 Hardware ECC Recovered: 043 (026) Data 000242A581
C4 Reallocation Event Count: 100 (100) Data 000000000B

Your hard drive is beginning to show signs of wear by the five indicators above.

  • Reallocated Sectors Count - "When the hard drive finds a read/write/verification error, it marks that sector as "reallocated" and transfers data to a special reserved area (spare area). This process is also known as remapping." http://en.wikipedia.org/wiki/S.M.A.R.T.
  • This is not to say that the drive is in imminent danger of failing soon, but just to advise you to watch the SMART data, periodically, for signs of progression.
  • Remember, having a backup copy of any important file that you wouldn't want to lose is just good computing policy.

Regards,
Brooks



 





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