Thanks for answering, Yes, I put heatsink cream between the processor and the heatsink. and an extractor to the tv box. But it is still the same. The funny thing is that when it is on and hot it lasts 1 day on without freezing. The problem is when turning on and the board is cold. I use antistatic gloves when handling the boardSorry I don't, I haven't encounter this type of problem before maybe your CPU is overheating make sure you reapplied your heatsink properly after checking it's model or if the motherboard is outside the case don't touch it you're probably shorting the contacts on your motherboard tried it before and sure enough it did freeze.