Hello, I recently purchased a second hand Ps3 Slim CECH-2504A console. It came with Rebug 4.60 CFW, I updated to the latest Rebug 4.81.2 CFW. In the previous and current firmware as well, when I start gaming, after a while, the system cut off electricity from itself. No red light is on. And when cuts off, no beeping or any YLOD symptomps. The CPU and GPU is around 68-80 C degree always. The system fan stays usually around 28-30%. I already cleaned the Ps3 and reflow the termal paste, but no luck, the problem still exists. Inside I have the APS-270 UPS with 2 potmeters. I have tried to adjust the potmeters seen in tutorial videos for this slim, to fix this cut off issue, but the problem still exists. And strange thing: If I use Habib CFW, I have this problem too. If I load from Webman or Multiman the games, same problem occurs. If it is a PSN game or original disc game from blu-ray drive, the problem still there. And if I reinstall the system, everything working fine but once suddenly a game cut off, and after none of the games are working. All of them cut off during intro or the first 2-3 minutes. I tried diffferent 100% good condition hdd-s and different power cables but no luck. What can cause this ridiculus cut-off shutdown problem? Thank you for any helyp!