Problems with my computer

gitarwiner

Distinguished
Mar 7, 2014
52
0
18,530
In the past few days my computer has been presenting many problems. The most common one is: An error occurred on windows
( MACHINE_CHECK_EXCEPTION )
I need to know if my problem is in the gpu or cpu. The GPU is a Geforce GTX 660 Ti without overclock. I believe my problem is due to the fact that my power supply unit is below the recommended by Nvidia. My source is a 400w and Nvidia recommends 500w. But not sure if it's the gpu, I believe it can also be the cpu since another common error is the computer stops responding and I have to take it off from the plug because the computer button stops working.
I hope you guys can help me!
Thanks for the attention and sorry for my english im from Brazil.
 

gitarwiner

Distinguished
Mar 7, 2014
52
0
18,530
Ok thanks, any recommendations on power suplys or i can just buy a Corsair?
Another question, i'v been running my gpu in this power suply for about one year any chance it damaged the gpu?
Thanks for the help