So at the beginning of this month my PlayStation started randomly turning off in the middle of use. After a solid 16 hours or so it will be able to turn back on but until that time it does not respond to anything, as if there is no power. At first I thought it was overheating as it had been some time since I had cleaned out the dust. After meticulously cleaning out all the dust. I turned it back on and the problem still persisted. After that I checked the thermal paste and thermal pads, All of the thermal pads were perfectly okay, but the thermal paste was almost completely dry, so I completely replaced it with better thermal paste. However, it keeps randomly turning off still, now at shorter and shorter intervals. I am fairly certain it has nothing to do with overheating and from what I can see the power supply is perfectly intact. Can anyone suggest something I could try or tell me what's wrong with it so I can fix it, please? Would love to save it rather than just getting a new console. Anyways thanks in advance.