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My ps4 gets loud after turning on and loading a disc game then shuts off . I cleaned out all the dust . Does this mean I need a new fan or thermal paste ? Thermal paste is worn out around the little box thing . Please help

If the heatsink / middle plate was removed when cleaning out the PS4 then the thermal paste needs to be replaced. Make sure that all thermal pads on that middle plate are present as missing thermal pads can cause the console to shut off from overheating. PlayStation 4 Motherboard Replacement