How can I tell if its my I/O board that is damaged? I cannot hear sound from Aux port or from the speakers on my macbook. Laptop still charges fine though.
Reputation over time
It looks like this user hasn't gained any reputation yet.
Once they have, you'll be able to view a graph of their reputation gained over time.
Here's a preview of what the graph will look like:
How can I tell if its my I/O board that is damaged? I cannot hear sound from Aux port or from the speakers on my macbook. Laptop still charges fine though.