Laptop does not start. Is it bad power jack or motherboard?

posted in: Miscellaneous Tips | 447

Let’s say your laptop does not start at all. You plug in the power adapter and press on the power button, but the computer will not react. It’s dead and the power or battery charge LED will not light up.

What could be wrong? Is it bad power jack or the motherboard is dead?

Laptop top cover removed

By the way, the power jack (DC-IN jack) is the power socket on the side or back of your computer where you plug the AC/DC power adapter.

I’ll explain how to perform basic troubleshooting and find out what is wrong. This is only for experienced people, who know how to disassemble laptops.


How to apply thermal grease on processor

posted in: Miscellaneous Tips | 66

This guide explains how to apply new thermal grease on a laptop processor (CPU).

Thermal grease (thermal compound or paste) has to be applied on the top of the processor before you install the heat sink. Thermal grease helps to conduct heat more efficiently.

In some laptops you can remove the heat sink without removing the CPU fan. In my case, I had to remove the fan first.

Remove cooling fan