MacPro 4,1 won't start in any mode, not with recovery disk, not with disk warrior 5

Question

Level 2

454 points

MacPro 4,1 won't start in any mode, not with recovery disk, not with disk warrior 5

TThis afternoon my MacPro 4,1 froze and I had to hold the start button down to restart. When it restarted, the boot progress bar stopped at about 67% and went no farther. In Safe mode, the bar gets to about 90% and stops. I tried booting from os 11 and is 9 recovery disks; no luck. I tried booting from my disk warrior 5 thumb drive; same thing...progress bar stops at about 67%. I am out of ideas...this very reliable machine will not boot. any ideas appreciated.

Mac Pro, OS X El Capitan (10.11), 2.66 GHz Intel QC Xeon. 20 GB RAM

Posted on Jul 27, 2016 7:19 PM

Reply

Answer 1

pomme-homme Author

Level 2

454 points

Jul 27, 2016 7:26 PM in response to pomme-homme

UUpdate: finally got the progress bar to completely fill in Safe boot...but nothing else is happening.

Reply

Answer 2

macjack

Level 10

111,242 points

Jul 27, 2016 7:31 PM in response to pomme-homme

Please download and run EtreCheck, created by one of own helpers here in ASC. It is a diagnostic tool that's very useful to us in finding problems. Also it will give us further specs on your Mac. After it runs post the log file here. It will contain no personal information.

Reply

Answer 3

Jul 27, 2016 8:17 PM in response to pomme-homme

The progress bar stops when the drive stops responding.

You will need a new drive, right away.

Reply

Answer 4

pomme-homme Author

Level 2

454 points

Jul 27, 2016 9:00 PM in response to Grant Bennet-Alder

There is a backup bootable drive in one of the MacPro's slots. I couldn't boot the computer from that drive either and couldn't boot it from Disk Warrior (thumbdrive) either. I don't think all of those failed simultaneously.

Reply