The laptop motherboard is the heart of the computer, every part of the computer relies on the laptop motherboard to function correctly. It maintains connection between every PC component and ensures that things are operating smoothly between them.
Many signs of laptop motherboard failure is that the computer won’t boot up, not reaching the POST test, erratic system behavior, different combination's of components not working. Because everything is connected to the notebook motherboard certain parts may or may not work correctly if the motherboard is faulty so be sure to test those parts before thinking they’re dead and getting new ones. Be sure to do a visual inspection of the motherboard to make sure all cables are seated properly, the fans are spinning, and that the CMOS battery is in it’s proper place. Also check for any broken or leaking capacitors, those can immediately render a motherboard dead. Make sure that all of the jumpers are set correctly as well, you should be able to find jumper information in your laptop motherboard’s manual, and if you don’t have the manual you should be able to find the manual on the Internet at the motherboard manufacturer’s website.
Many of the problems caused by a bad laptop motherboard is also similar to problems caused by a faulty or dying power supply, so be sure to check if the power supply is faulty or swap it out for another to see if your problem is fixed. If you have a spare motherboard you can try swapping out the motherboard to see if that solves your problem, if that’s the case then the motherboard is most likely faulty.
If you think the notebook motherboard is faulty and it is still in warranty you should be able to send it back to the manufacturer for a new one with no hassle, sometimes they might even pay for the shipping and handling if it is a big problem that is happening with a certain line of motherboards.
Make sure that when you open the laptop motherboard packaging... you keep all of the packaging and the box, and if there are any stickers that will void the warranty if removed make sure you do NOT remove them, so that way it is easier to send back.
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