crwdns2934241:0crwdne2934241:0 mayer

crwdns2934249:0crwdne2934249:0:

What do the diagnostic LEDs tell you?  Here's Apples Service Source PDF on the MacPro, see page 147:

tim.id.au/laptops/apple/macpro/macpro.pdf

Also try switching hard drives to insure you have a valid startup folder.

Is your video card an AGP or PCI?  If PCI, move it to a different slot.

crwdns2915684:0crwdne2915684:0:

open