Question regarding apple hardware diagnostic test

[sadakaa]

Is it possible that a failing I/O board would not show up as a problem in Apple's hardware diagnostic test? (from disc 1 of those included with the computer)

I'm specifically referring to the Left i/o board, which handles the left ports, the a/c adapter, and part of the wireless connection. My battery just fried and now my airport card isnt working, and after trying everything, i think i may have found the issue.

 

[Makosuke]

Yes, it's possible. The Hardware Test routine tries to test everything, but there are problems it can't detect (particularly if it's something like an electric short in the power pins of a USB port that leaves the actual circuitry working properly).

Sounds like you've got some pretty severe hardware issues, so it's pretty hard to tell what's doing it--could be anything from the power brick to the motherboard--but I suppose you're not going to make it much worse than it already is.