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I7 920, one of the core is running 100%

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  • CPUs
  • Core
  • Intel i7
Last response: in CPUs
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July 21, 2010 2:32:15 AM

Hello everyone,

I'm using i7 920 processor with window 7. It is working fine all the while. But yesterday, my computer suddenly running super slow and lagging. It take more than 10 second when i'm trying to click on any file or start button.

One of the core is running at 100% usage while the CPU usage is 16-18%. (other than browser,there is no other software or games are running)




* I'm using AVG to scan virus, there is no virus found.

I'm wondering is there anyone know how to solve this problem?

Thanks...

More about : 920 core running 100

a b à CPUs
July 21, 2010 4:41:36 AM

AVG sucks, try avira, and run malwarebytes.
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a b à CPUs
July 21, 2010 4:50:35 AM

What does task manager say?
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Related resources
July 21, 2010 6:29:01 AM

This is my CPU performance




I have just scanned using Malwarebytes. And the Malwarebytes keep on alert "Successfully blocked access to a potentially malicious website:......."



What's this actually meaning? :??: 

Please help meeeeee....
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a b à CPUs
July 21, 2010 6:51:19 AM

Show me a task manager screen with all the processes that are running.
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a b à CPUs
July 21, 2010 6:52:43 AM

And I would have freaked out if my computer used over 40% memory out of a total of 6GB.
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Best solution

a b à CPUs
July 21, 2010 6:54:24 AM

1) Which process spikes to 100% according to task manager?
2) Did you visit any suspicious websites or open a strange file in your email?
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July 21, 2010 7:13:58 AM

Hi...

I don't think i have clicked any suspicious website or strange file from email.

From what i can see, only the Chrome browser is using most a lot of memory. Is that the cause?
And, the "DSMain.exe" is just a process that "360 safe"(A software origin from China) using to remove Trojan or Malware. (I just installed it after my core gone crazy.)

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a b à CPUs
July 21, 2010 7:18:54 AM

I don't trust the Chinese software.And why are you running AVG and Malwarebytes at the same time?
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July 21, 2010 7:39:34 AM

Yes, Thanks for the link. I knew a lot of people comment that 360 safe is not a safe app.. But I don't think this app affected my core became 100%..

** I installed 360 safe and Malwarebyte after my computer gone laggy and core up to 100%... :sleep: 
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a b à CPUs
July 21, 2010 7:42:09 AM

try an online scan and scan you boot drive
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a b à CPUs
July 21, 2010 7:35:24 PM

You have a virus. Run a full scan with malwarebytes. A remote PC is trying to connect to your PC, thats why malwarebytes is blocking it.

Run Malwarebytes

Run Spybot search and destroy

Run lavasoft adaware

Fix registry with CC cleaner

go to c/windows/system32/drivers/ect

open the host file in note pad if you have lots of websites in it you need to get a new host file.


Otherwise format and reinstall.

When you have a clean system, keep malwarebytes, get avira, and use zonealrm for firewall, and make your host file read only.
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August 1, 2010 7:05:24 AM

Best answer selected by fuzzypeach.
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