So I have an all custom cpu with AMD atholon 64 processor, MSI K8N Neo motherboard, geforce 6800 graphx card, with a 420 watt power supply. The cpu has a total of 8 fans inside.
Anyway ive had the cpu for 2 years now, its never failed me until now.
So i unpluged the computer for a change of rooms and when i plugged it back in at the new location (nothing differant, same house outlets) I turned the pc on and it worked good but i noticed the USB ports wernt working at all. The mouse or keyboard wasnt working, i switched to differant mouses and boards and everything they still didnt work but the computer turned on fine. So the dumb kid I am, I went to the back of the power supply while it was still on and switched the voltage swith from like 115 to 220 or something and the computer made weird noises before shutting off following a burnin smell. I immedately unplugged it. The computer wont turn on at all now. Its not the power supply because I checked it on other computers. PLEASE ANY HELP WOULD BE APPRECIATED.