dellboy Hi, thanks for your help, but when I click on the Drivers and Downloads (in How to run the Dell Diagnostics) - this message appears: Sorry, an error occurred while processing your request. Anyway, my computer keeps freezing and I have to turn it off and on all the time, and a few times...

Enhance mosfet field effect transistor two installed near processor part number 6n03la0 one or two of them shoted siple replacement problem solved had the same blinking light tried everything nothing worked then remved the four pin 12 volt connector from psu to motherboard blinking light stop on power...

I heard that dell was thinking about using Google plus for support i think this is a great idea. The video chat feature would be like text support on steroids, making it a lot faster and easier to find a solution to your problem copy and paste this in a new forum if you think dell should use Google plus...