So I have had this old faithful running for literally 9 years with very minimal shut downs and LOTS of sleep modes and reboots over the years. Suddenly one day, after a reboot, it never turned back on.
So here is what happens, when I press the power button, it clicks immediately then does nothing. At that point, I can't do anything until I unplug it.
Machine:
2009 Mac Pro
Dual 2.66 Xeons
64GB RAM - all 8 slots full
GTX 985 graphics
Here is what I've done/tried:
1. Replaced Power Supply with a known fully functional one of the same product number
2. Replaced 2032 battery
3. Pressed and held both logic board buttons according to Apple instructions
4. Moved Graphics card to slot next to it then back again after continued failure.
5. Reseated EVERYTHING
6. Removed and shuffled the RAM chips seeing that's the issue but no luck (Right now only 2 chips are in there for simple troubleshooting.
7. Press LED Diag on logic board and see that the yellow 5v light illuminates indicating power. (NOTE: when i first plug in power cable, two red LED lights flash for a moment then go out permanently.
8. Looked for any Memory LED lights lit but there are none nor is there any on the CPU tray
9. Reset RTC
These were in random order when written and I did not track my steps 1 by 1 out of anger that I just bought a new power supply and it still isn't working.
I am not sure what else to do here and am stumped. As a 20year systems engineer, I deal with this everyday but when you can't solve your own, it's frustrating so any help you guys can provide is much appreciated.
I THINK I covered it all but please HELP! And please don't say logic board replacement....
So here is what happens, when I press the power button, it clicks immediately then does nothing. At that point, I can't do anything until I unplug it.
Machine:
2009 Mac Pro
Dual 2.66 Xeons
64GB RAM - all 8 slots full
GTX 985 graphics
Here is what I've done/tried:
1. Replaced Power Supply with a known fully functional one of the same product number
2. Replaced 2032 battery
3. Pressed and held both logic board buttons according to Apple instructions
4. Moved Graphics card to slot next to it then back again after continued failure.
5. Reseated EVERYTHING
6. Removed and shuffled the RAM chips seeing that's the issue but no luck (Right now only 2 chips are in there for simple troubleshooting.
7. Press LED Diag on logic board and see that the yellow 5v light illuminates indicating power. (NOTE: when i first plug in power cable, two red LED lights flash for a moment then go out permanently.
8. Looked for any Memory LED lights lit but there are none nor is there any on the CPU tray
9. Reset RTC
These were in random order when written and I did not track my steps 1 by 1 out of anger that I just bought a new power supply and it still isn't working.
I am not sure what else to do here and am stumped. As a 20year systems engineer, I deal with this everyday but when you can't solve your own, it's frustrating so any help you guys can provide is much appreciated.
I THINK I covered it all but please HELP! And please don't say logic board replacement....
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