My computer just suddenly started lagging in game play??

[yasingalatasaray]

Hey their guys.

I have a desktop gaming pc here, that was working perfect for more than a year then suddenly started to lag during game play. Now even programs are sometimes starting to not respond. Here is the specs below

RAM: 4 GB
32 bit windows 7 ultimate
Processor: AMD Atholon 64 X2 Duel Core 5000+ 2.61 GHz
Graphics Card: GeForce 9600 GSO 768MB DDR2
Hard Drive: Sata connected 250GB

I have tryed dusting the computer and the prosessor,
I have tryed using uniblue speed up my pc, registry cleaner, drivers update. Did run all of them didnt help. I have de-fraged.
I have installed avg free protection, and i connected an old ide hard drive, installed a clean windows 7 with drivers, and games like mineraft were still laggy.

Please help me i dont no what to do anymore

 

[skaz]

Time to upgrade brother. Start with your GPU.

http://www.videocardbenchmark.net/high_end_gpus.html

 

[imrul]

i'm thinking heat

 

[Onus]

Heat is possible, as are failing caps on your mobo. Google "bad capacitors" for images.