Okay, I'll try to be as detailed as possible to avoid needless posts and to hopefully get a fix faster(knock on wood).
ITS A LONG POST SO THERE IS A SUMMARY AT THE BOTTOM!!!
My system ran great since launch day. A freeze about once every month(usually when going through the guide really fast while hosting a game and streaming music via USB so probably just a overload freeze). Never once any graphical errors or slow framerates or anything abnormal. Then last week I got the good ol' 3 lights of death with error code 0020 on a cold start. the lights were 1,3,4(general hardware failure if I'm not mistaken). I checked every connection and tightened every screw, especially the heatsink screws and nothing. Although there were no heat issues Im aware of, I did the AS5 upgrade while I did the heat gun trick. Now it works great for two days and back to the red lights again. Did the heatgun trick again and it worked for three days great, then same thing. It always happens on a cold start and never during gameplay plus nothing is getting abnormally hot so I'm pretty sure heat issues are out. Any ideas?
Summary:
1. After one year of perfect perfomance, 3 lights of death(1,3,4) and error code 0020 on a cold start.
2. Checked all wires and connection plus tightened all screws, especially the heatsinks. PSU is green when on. Still dead.
3. Did AS5 just to do it. Still dead.
4. Heat gun revives it for two days runnin perfect, then dies on cold start.
5. heat gun trick second attempt with more heat for a longer duration. 3 good days then dead again.
Always get the lights on a cold boot and it comes up instantly. No startup screen or anything. Once they appear I cannot get it to work at all until the heatgun comes out.
Please Help!!!