Originally posted by: Thanny Are you talking about the interface between heat sink and memory chips or VRM modules, or the GPU itself? The latter would typically use a thermal compound, not a thermal pad. The same kind of compound used for CPU's works fine. Anything beyond no-name brands will likely be good enough.
If you do mean the pads, then the easiest way to figure out what size and thickness is to disassemble the unit and examine the old ones. But if you haven't done so already, why do you think you need to change them?
Perhaps if you expand on what your goals are, I can give a more helpful answer.
I think it is GPU, and it is with thermal pad, because I changed a thermal compound on CPU few times, and I decided that thermal pad is not so fresh (dirty).
I used hp probook 4710s for 3 years, and I think that it is not bad idea to change thermal pad too, maybe to lower temperature on GPU, when i playing games or watching movied in Full HD.
I understand that I can measure its thikness when i disassembly it, but dont want to do it several times, first to measure and second to replace.
This question is for me to buy required thickness of thermal pad.