MP 6,1 red vertical lines on MP 2013 ?

[MacosaurusNEXT]

Hmm, after all those trusty years my 2013 MP is finally toast, i think

Did all the normal bells and whistles, e.g. SMC, PVRAM, Changing RAM, Recovery-Console, Self-Diagnosis (see below), any idea what is happening here?

Ummm, i guess...NO issues, come on

It is in a constant boot loop, showing Apple Logo, some seconds progress bar and booting again...showing these red lines, Logic Board ? Should the diagnosis function find at least a broken logic board ? When i tried to bring up the recovery console it just hang forever, showing the progress bar with no progress...

 

[MisterAndrew]

You might want to take a look at the troubleshooting section of the technician guide posted on this forum (in a thread with ‘LED diagnostics’ in the title.) Unfortunately the 6,1 doesn’t lend itself to DIY repairs. I think the best option is to schedule an appointment at the Genius Bar at the Apple store.

 

[MacosaurusNEXT]

Thanks for pointing to that guide, was a bit tricky to find the right post, did all the checks, all LED green, so as diagnostics showed no obvious hardware failure

 

[KD7IWP]

Well, my 2013 Mac Pro just started showing the exact same lines as yours. I find it interesting that the red only shows where there is black. The white Apple logo and boot progress bar are not red. My boot progress bar gets roughly half way and freezes there. Tried removing RAM sticks one at a time and tried booting from an external drive but no luck. I'm assuming GPU, and also assuming that I can't just switch where the two GPUs are as they surely have different part numbers though they are both D500s.

 

[liudayu]

Well, my 2013 Mac Pro just started showing the exact same lines as yours. I find it interesting that the red only shows where there is black. The white Apple logo and boot progress bar are not red. My boot progress bar gets roughly half way and freezes there. Tried removing RAM sticks one at a time and tried booting from an external drive but no luck. I'm assuming GPU, and also assuming that I can't just switch where the two GPUs are as they surely have different part numbers though they are both D500s.

Those two D500 are symmetrical and are not identical, one of the GPU has SSD slot on it as well, so yes, you cannot swap them around

 

[Borowski]

Mac Pro 6.1 is scrap from factory.

The GPUs are known for increased fault rate, spare-parts are very expensive and can exceed the value of MP.
I guess one or more memory-BGAs failed, you can try to give it to repair; this could be the cheapest way to repair the machine, but will fail again sooner or later.

 

[Seiko4169]

"Hmm, after all those trusty years my 2013 MP is finally toast, I think" - it seems the 6.1 gets a bad wrap for failure rates and yet I know lots that have lasted many years fault free.

How long did your Mac 6.1 last btw?

 

[SpotOnT]

Well, my 2013 Mac Pro just started showing the exact same lines as yours. I find it interesting that the red only shows where there is black. The white Apple logo and boot progress bar are not red. My boot progress bar gets roughly half way and freezes there. Tried removing RAM sticks one at a time and tried booting from an external drive but no luck. I'm assuming GPU, and also assuming that I can't just switch where the two GPUs are as they surely have different part numbers though they are both D500s.

Exact same thing happened to my 2011 MacBook Pro with the infamous Radeon 6750M. Vertical red lines replaced black. Problems booting.

 

[Ruggy]

I think it's likely the ribbon cable if it shows no hardware problems.
Hook it up to a TV via HDMI and if you have a good image then it's after the graphics card so probably ribbon cable. Otherwise it'll be the graphics card.

 

[KD7IWP]

First I took the machine apart only to discover I didn't have a T8 security bit so couldn't remove the GPUs, but did remove the large ribbon cables and blow everything off with my air compressor. No change, still has vertical lines and won't boot (stuck at about 40% on the progress bar and same with Internet Recovery).

Then I borrowed screwdrivers from work and I removed the GPU card B (with SSD) and pulled out the ol' heat gun and made the main die nice and toasty. Some new thermal paste and it's working again, for now. Hopefully it lasts me until an M2 Mac Mini comes out.

For reference, I have an 8 core, 64GB RAM and D500's.