How to check for bad pch chip in laptop that does not power on 

Usually, in case of such pch chip or south bridge chip failure, there is a great risk of damaging other parts when accessing without checking correctly.
In fact, when I try to repair it, I try to touch the wrong part to make it impossible to repair.
Through the actual case, we repaired the Hansung notebook p54 model, which does not come in at all, and created a video to check how the pch chip went out through the repair process.