MacBook Air mid-2012: Random screen glitches and lockup/crashing
Hi iFixit community,
I have a problem. Seemingly at random, my mid-2012 Macbook Air locks up, the screen glitches out, and quickly crashes. When the speakers are on, I also get some awful sounds coming out. This happens regardless of being plugged into power or not, though it does seem to occur more rapidly while on battery. I’ve attached a video of the strange behavior.
I had previously (and carefully!) replaced the SSD and battery to keep it alive a few years back. Thinking those components might’ve been the culprit, I recently re-replaced both. It’s currently sporting an OWC SSD and fresh battery from iFixit.
I’ve tried looking in the machine logs and can’t find anything particularly useful. I’ve reset the SMC and PRAM many times. I’ve reinstalled a fresh MacOS just to be sure it wasn’t something weird in the kernel. Sadly, none of that has worked.
Anyone seen this before, or any ideas about what’s going on? Can I revive my favorite little computer?
Updates (from tests in comments):
- Model is an A1466, so mid-late 2012
- In addition to the issue happening on the built in display, it also occurs when using an external monitor exclusively (lid closed).
- Running a GPU benchmark tool did not crash it outright.