Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

My (Discrete, not Unibody) MBP (2007-ish) just started to kernel panic on boot.

Pulled the HDD, which boots via USB on my Mini - hopefully ruling out a HDD or data/OS issue.

I've disconnected the Airport card as well as removed the memory SO-DIMMs and booted with one at a time. Still kernel panics.

Tried the Apple Hardware Installer/Diagnostic DVD and it froze near the end (logic board testing...)

Wasn't able to get it to boot to try Tech Tool Pro diagnostics.

All signs are pointing to a logic board failure - am I missing anything?

share|improve this question

I don't think you're missing anything. This all makes sense if you assume a dead logic board.
What makes you think that isn't the problem? Seems like plenty of evidence for it to me.

share|improve this answer
no, just figured I'd go for a 2nd opinion here :) - have a 'diagnostic' appointment with the Genius Bar tomorrow, but this machine is out of warranty, so dead logic board means it's a write off... – Josh Newman Feb 23 '11 at 4:18
@3rdparty In that case, my second opinion confirms your first :). – Nathan Greenstein Feb 23 '11 at 4:47
up vote 0 down vote accepted

Turns out it's a known nVidia GPU related issue, which is covered under a recall.

It appears to be related to this service notice: , although it doesn't talk about Kernel Panics as a symptom.

The Apple 'Genius' ran a video diagnostic and confirmed that the GPU had failed - he likely knew it was the issue as the whole diagnostic took about 5 minutes.

Thankful as it means a new logic board for free! Hope to have the machine back sooner than the quoted 7-10 days.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.