5 Replies Latest reply: Nov 20, 2012 12:36 PM by JimAspen
JimAspen Level 1 (0 points)

I have a Mac Pro 3,1 (early 2008) using OS 10.8. I cannot get the Apple Hardware Test program to load on startup (by depressing D). Nor will the computer boot from either Snow Leopard or Leopard system discs. Any ideas?

Mac Pro, OS X Mountain Lion (10.8.2), Model 3,1 (early 2008)