Gpu load goes to 95% temperature to 62c and many games lag

andy0000002

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I'm chinese and my english isn't very good so please answer me in easy words.
And I don't know much about computer so please tell me a easy way to solve my problems thank you!!!

My graphics card isNVIDIA GeForce GTX 660, I can play games like AssasinsCreed4 or Call of Duty Ghosts and Battle Field before very smoothly, but one day when i'm playing AssasinsCreed4 i found that it's lagging and the fps is only 7~9, and i found that my Gpu load goes to 95% ,temperature to 62c,i went to lots of websites but no chinese websites have information about my problem, finally i found there are some people having similar problems like me in this website,i think maybe i got a bitcoin mining virus, but when i use Microsoft Essential and other antivirus i got nothing and i can't understand what those solutions are talking about so i decide to create a new thread for help , please help me! Thank you!!!
 

ayushde

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What resolution and what settings do you play at??
 

andy0000002

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I used to play at the highest settings and its smooth, but now i play in the lowest settings it's very lag.
And my gpu temperature is 60c even when i am not opening anything.
 

ayushde

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Could be because of a driver issue.
Try to update your GPU drivers.
 

andy0000002

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I updated but no use
 

ayushde

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You can try and revert back to an older and more stable driver.

And which software are you using to monitor your GPU??

Can you post a screenshot.
 

andy0000002

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I don't know how to put a picture up here.
 

ayushde

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Take a picture

Upload it on instagram or any other photo sharing site

Send us a link to that picture.
 

andy0000002

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http://minus.com/i/bdalnD7KIeFfj

I'm using Open Hardware Monitor.

I'm using the newest Nvida driver,how do i revert back?and what driver should i revert to?
 

ayushde

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Can you please use something like MSI afterburner and post the whole screenshot of the graph.

A graph is usually better as it shows the various parameters for a given period of time.
 

andy0000002

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http://minus.com/i/eTkuPffx4CKN
 

ayushde

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Everything in this graph looks fine.

Can you please scroll down the graph and tell me what your gpu clock speed was during this time.

Maybe something (other than temps) is causing your gpu to throttle down to lower clockspeeds.
 

andy0000002

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http://minus.com/i/bvSG8whw6vJYH

 

ayushde

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Everything looks fine.

Maybe the culprit is the driver. Go to Nvidia's website find an older WHQL (not Beta) driver for your card. Download and install it.

See if this helps.

Do post the results.
 

andy0000002

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The temperature is cooling down but the power is getting high to yellow, whats wrong this time?
http://minus.com/i/u8Y46P5bal8E

i closed msi afterburner and opened it again then the power is back to normal, then i reboot my computer but the problem is back, the temperature raised to 63c and games are lagging!
 

ayushde

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The yellow color shows that the power target of your gpu is at abnormally high levels. That is strange since you haven't changed anything manually. Something is really wrong.

No, is this with another driver. If so then which one??

Also did ever do a bios flash of your GPU??
The issue could also be due to the bios..
 

andy0000002

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i closed msi after burner and open it again, then the power is back to normal , then i rebooted my computer,after i rebooted my computer the problem is back! the temperature raised to 63c and games lag !
 

andy0000002

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but it doesn't overheat before, if the problem is caused because i dont have enough fans it should over heat since the first time i use my computer.

ps. i checked the fans and there is no dust.
 

andy0000002

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do you mean increase the fanspeed?

i increased the fanspeed in msi but the temperature only droped to 5x,should i even increase more speed?
im afraid the computer will be overloaded.