2 Replies Latest reply: Nov 20, 2012 12:00 PM by John Galt
mhb1367 Level 1 Level 1

I have MAc book pro 15-inch, Early 2011 , I want to check my hardware , but when I hold the D key , nothing happened

what should I do , if I want to check my hardware?

MacBook Pro, OS X Mountain Lion (10.8.2)