I have got an amd athlon X2 64bit 5200+ processor along with asus m2n-mx-se-plus motherboard,2 gb ram,1gb ddr3 amd radeon 5450 graphics card and 160 gb seagate hardisk.
1 month before i could play high graphics games like nfs run,assassins creed black flag,elder scroll vs skyrim etc games without any serious lag.While playing these games my cpu would hit around 60 degree celsius as well as gpu. Recently one day morning i couldn't run high graphics games like the way it used to.There were serious lags with all those games that worked fine previously.Even low graphics games like IGI,medal of honor was lagging.Also now temperature of my cpu and gpu doesn't exceed 48 degree even when i am playing.Even,when i scroll down while browsing a web page,there is a heavy lag.Plus the psu was damaged once after this problem and was changed.
I changed the heat sink 1 week before and couldn't observe any change.Also i tried overclocking my processor but that too didn't help.Is there any solution to this other than changing the hardware?And which part of the system is possibly damaged?
Computer back to full speed but for some time (recently) Recently computer came back to full speed but it doesn't work at that speed for much long,say for some 2 or 3 hrs.I ran the benchmark test when system was slow and when it was normal.
note:both test were run with the same no:of background processes.Though the variation in background cpu usage seems to be way too different in both these results.(does it mean the processor is the issue.I think so)