Running hardware test on early 2011 mbpro osx, 10.8.4, command-alt-d on startup resulted in a triangular warning symbol with ! inside followed by text below "-3403D". What does this mean and how do I respond? A search of Apple site resources returns nothing.
To run the Apple Hardware Test try these 3 procedures:
You have boot the MBP with the D key.
You boot the MBP with the OPTION + D key.
You used the original installation disk that has the AHT instructions written on it.
You DO NOT boot the MBP with the COMMAND + OPTION (ALT) + D keys.
Ciao.
Thanks for your reply. I need to restate the question - I did not use command-option-D on restart, just option-D. Neither that nor just D on restart resulted in Hardware Test execution. (Since original post, the system was updated to 10.8.5 and Hardware Test access was attempted again, with the same results.) I will try to locate the original installation disk.
Hardware Test on early 2011 MbPro osx 10.8.4 on startup resulted in warning symbol ! followed by 3403D. What does this mean?
