I can't load Apple Hardware Test on Mountain Lion
I've tried various ways of loading Apple Hardware Test on Mountain Lion as descibed by Apple:
https://support.apple.com/kb/PH11342
https://support.apple.com/kb/ht1509
Using a wired keyboard and with every thing else un-plugged I tried
Holding D at bootup
Option+D with WiFi on at bootup
Both ways failed.
Then I tried using my iMac's original Leopard DVD that has AHT on it. While it seems like its loading the mac dies before it actually loads !
I did that twice and both times mac died before AHT could be loaded- like some one yanked the powercord out.
How am I suppose to load AHT ?
I upgraded from Snow Leopard to Mountain Lion on a 2009 iMac.
Thanks