Liquid damage to I/O board. Will a replacement fix my laptop?
A few months ago I knocked over a glass of water in the night and it spilled on the floor where my laptop was sitting. Fortunately the computer was propped up on its side with the MagSafe port pointing to the sky, and the I/O board side on the ground in a puddle of water. When I found it in the morning the water had all but dried up. Unfortunately, I didn’t fully comprehend what had happened so in my complete panic I did the one cardinal sin and tried to turn it on to see if it was okay. One flicker of my login screen and then death.
Here’s what I’ve found. The I/O board is fried. There’s no doubt about that. I pulled it out and I can see corrosion on the board itself. The HDMI port had formed green corrosion overnight and I can see some singeing on the plastic around the port. Obviously it’s dead. The MagSafe plugs in green then turns amber but never back to green so I don’t think there’s any charging going on. One of the batteries is bulging but only ever so slightly, and that if I didn’t know what to look for on a bloated battery I probably wouldn’t have even noticed it. There is no corrosion or singeing on any of the battery components so I’m hoping everything there is still in good shape.
My question is this… is it *possible* that I only damaged the I/O board itself and that the logic board is still in tact since it itself didn’t get any water on it? I can assume there’s some risk of frying the whole thing no matter where the water enters the laptop, but since the water damage was a little more acute than a full spill all over the keyboard, is there still hope?
My understanding is that despite the fact that the actual MagSafe is NOT on the I/O board itself, it’s still the next place power is run to after it reaches DC-in. So in essence, power comes in through the MagSafe on the left, is shipped all the way to the right to the I/O board, it’s processed there, then shipped off to the rest of the laptop and logic board.
Is my understanding correct, and is it worth trying a new I/O board or am I just wasting my time? I know this computer is 7 years old, but it was the very best you could buy at the time and up until I gave it a bath it still worked like new. I would like very, very much to get it up and running again. Any advice would be invaluable to me.
Thanks in advance for your help!
Is this a good question?