Jun 17, '08 07:30:00AM • Contributed by: manuamador
[robg adds: This doesn't work on my older MacBook Pro. I know that you can press 'D' at startup on the MacBook Air to get into hardware test mode, but this is the first I've heard of it on other models. (Any model should boot into hardware test mode by holding 'D' at boot with the install disc in the optical drive.) If someone else can confirm the no-disc-required behavior on a newer MacBook Pro (or other Mac), please post in the comments.]
