PC slow down after 10-15 minutes of use

ZakX11

Distinguished
Apr 4, 2011
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I recently started having this problem where my PC will slow down after 10-15 minutes of use. This doesn't affect any of my , say , non-intensive activities like using photoshop or browsing the internet , etc.


But if I'm 3-D modelling or playing games I get a huuuge fps drop. For eg , in Call of duty 4 I usually get about 100+ fps easily , but after 10-15 mins it suddenly drops to 10-15 fps or even lesser. This happens with all my games and I even get lag when 3-D modelling.


Only if i restart the PC , then after booting back up it runs properly for another 10-15 minutes and the same problem.


Someone told me it may be due to overheating of the CPU , so here are my core temperatures during this slowed down state ( I'm not sure if these are considered as overheating ? ) -

http://prntscr.com/6894zx

I have 8GB DDR3 RAM


EDIT : These are the stats when my PC is in it's slowed don state WHILE playing a game ( call of duty 4 )
http://prntscr.com/68ae7n
 


See the screenshot , it shows the statistics of the usage when the PC is in it's slowed down state.
And yes, I have avast antivirus
 


Nope sorry , it doesn't work
 


Yup. But now it doesn't matter becuase my GPu started malfunctioning alongwith my power supply so I'm just upgrading to a better rig. Thanks for your concern though :)