Hello everybody and thank you for your help. And please excuse me for my approximate English.
Here is the problem. My PC (Intel DZ77RE-75K and Intel core i7-3770K) worked well for almost 3 years. 2 years with windows 7 installed on a mechanical HDD and almost 1 year with a SSD.
But it started freezing a few days ago. No BSOD, just freeze. But a weird freeze. My screen went black, all black. Hard reboot and then everything was OK for a few hours. Next day, I turn on the PC and after a few minutes, freeze. But this time, the screen was all white. Hard reboot and then everything was OK for a few hours. I thought it was a software problem because it happened when I was on the Internet. Maybe something with the new version of Firefox or flash player that I just installed.
But the next day, I turn on the PC and after a few minutes, freeze. The screen was all white. Hard reboot and... nothing. No boot. I turn on the PC, the fans are working but nothing but a black screen. I opened the case, clear CMOS, nothing. I unplugged SATA drives, optical drives, USB peripherals. Nothing. I tried with different RAM, with different video card, but each time I turn on the PC, the fans are working but nothing but a black screen. Then I removed everything, RAM and video card, and nothing. And I say nothing, not even beep errors. Just something on the POST code LED display. It was the same thing with RAM and video card installed. I made a little video.
https://drive.google.com/file/d/0B0UyI07D9bX5bGY4RVZnMU5jYjQ/view?pli=1
If someone can help me, explain to me what is going on. If you need more information. If you need me to try something else. Please let me know.
Thank you
