Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Mac Pro not booting
- Thread starter Nemi1596
- Start date
- Sort by reaction score
Have you tried a SMC rest unplug everything evens drives,Hubs etc then unplug your power supply if possible remove your battery the press your power button a few times then put your battery back in plug in your power supply cord power on if nothing then try a PRAM reset hold Command-Option-Pand R buttons while powering on you MacBook
It’s a desktop and can I still do the command option p and r if the computer isn’t posting at all and idk if it’s one of the riser ram cards can the Mac run with just one or does it need two and I’ve already pulled both cpus and swapped sockets so I’m just trying to see if anyone might know some other stuff I can try before I just buy a new motherboard
try with just 1 ram see if it boots then pull it out try the other ram that you can see if both ram chips work
They are the same, but with my experience (maybe I'm wrong), for testing purpose, it can boot with the top card installed and not solely on the bottom one (if the top card is missing).
[automerge]1584412044[/automerge]
Check for 'trickle' power led. If I remember you can push a switch on the motherboard to get some led diagnostics. Trickle power refer to having enough current from the psu to boot.
[automerge]1584412044[/automerge]
Check for 'trickle' power led. If I remember you can push a switch on the motherboard to get some led diagnostics. Trickle power refer to having enough current from the psu to boot.
Thank you for the help no luck yet but I mean worse case scenario I buy a refurbished motherboard for like 50 to 70 dollars or 100 to 150 with cpus haven’t decided yet
[automerge]1584421654[/automerge]
I don’t want to do new cpus because as far as I can tell I have one of the better sets already x5470s
mmm. You have to press the power button for about 5 sec to shut down completely. Hope it goes well for you!
So back to zero was working just fine I restarted multiple times I even down loaded el captain OS X and then it said I only had two gigs of ram which I have 8 and then I moved it and now it’s not working so those lights come on both risers when my computer is just plugged in not turned on
[automerge]1584492765[/automerge]
The led that says pwr is not lit up when the button is pressed is that right ?
Attachments
Last edited:
i just ordered two new (refurbished) risers brand new ram and a new mother board