I'm having some issues with an a6502n desktop. it is currently not starting up. the issue started when my wife was playing wow and it crashed and came back up scrambled on the BIOS screen. we were at that time able to manually shut off and reboot fine. Currently it does not start at all. i have replaced the video card (thinking it burned out), the ram, and the power supply. currently it does turn on but most of the time nothing at all comes up. It will power up and all the fans turn on and stay full throttle the whole time it is on. occasionally i can get it to start to boot up it will get to the windows screen be kinda grayish and then cut back off. i was thinking it could be the processor? any ideas on what i can do?