There is a component on the logic board called the “system management controller,” or SMC for short and you can test this with Apple Diagnostics. Below we’ve detailed some of the known issues. No power, no backlight, liquid damage are just a few. There are various failures that could occur with the logic board. The best way to check to see if your logic board is faulty is to do a little testing on your own.

In other words, if you don’t feel comfortable attempting to fix the problem which could involve micro-soldering, you could get to the point where sending it to a logic board repair specialist is your only option. This is because there are complex and delicate parts in your computer that you’ll have to navigate around in order to fix it (hundreds of them!), keep in mind that the logic board is the main circuit centre of your computer. This means that if the logic board fails for some reason, the different parts of the computer won’t be able to communicate with one another, and in practical terms, this usually means some sort of hardware issue is on the way.Īnother difficulty you may encounter when you suspect that there’s a failure with the logic board is that this type of problem is usually difficult to diagnose and even more challenging to repair. The logic board maintains the normal function and is the main circuit board that allows components to interact with one another. For reasons unknown to most of us, Apple decided to call their motherboards “logic boards,” but the two are essentially the very same thing.

Mac logic board failure symptoms