Hi Everyone i am getting the error below and my computer wont login. i have the new 2019 16in its less than 3 . weeks . old.

panic(cpu 2 caller 0xffffff7f8c0a1a97): GPU Panic: mux-regs 5 3 7f 1f 0 0 severity 3 WS-ready 0 switch-state 13 IG FBs 0 EG FBs 0:1f power-state 0 3D idle HDA idle system-state 0 power-level 20:20 power-retry 0:0 connect-change 0 : PowerPlay Failed to Initialize.



Backtrace (CPU 2), Frame : Return Address

0xffffffa3ec2d3500 : 0xffffff800813bb1b 

0xffffffa3ec2d3550 : 0xffffff80082733e5 

0xffffffa3ec2d3590 : 0xffffff8008264e5e 

0xffffffa3ec2d35e0 : 0xffffff80080e2a40 

0xffffffa3ec2d3600 : 0xffffff800813b207 

0xffffffa3ec2d3700 : 0xffffff800813b5eb 

0xffffffa3ec2d3750 : 0xffffff80088d24f9 

0xffffffa3ec2d37c0 : 0xffffff7f8c0a1a97 

0xffffffa3ec2d3820 : 0xffffff7f8c45a14d 

0xffffffa3ec2d3aa0 : 0xffffff7f8c428128 

0xffffffa3ec2d3ae0 : 0xffffff7f8c45924a 

0xffffffa3ec2d3b30 : 0xffffff7f8c42c33a 

0xffffffa3ec2d3b90 : 0xffffff7f8bd9f44c 

0xffffffa3ec2d3c10 : 0xffffff7f8bd95c0e 

0xffffffa3ec2d3ca0 : 0xffffff800881460b 

0xffffffa3ec2d3d00 : 0xffffff800886f0c9 

0xffffffa3ec2d3d60 : 0xffffff80082226ef 

0xffffffa3ec2d3db0 : 0xffffff8008141998 

0xffffffa3ec2d3e10 : 0xffffff8008118625 

0xffffffa3ec2d3e70 : 0xffffff800812f0d5 

0xffffffa3ec2d3f00 : 0xffffff800824b485 

0xffffffa3ec2d3fa0 : 0xffffff80080e3226 


MacBook Pro with Touch Bar

Posted on Dec 29, 2019 3:44 PM

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Question marked as Top-ranking reply

Posted on Jan 18, 2020 12:48 AM

News from my MBP: It's still in repair and the repair shop confirms a hardware failure. System crash (black screen, fans blow up, reboot immediately) when switch to 5500M GPU, probably this switch doesn't occure in safe-mode. The system crash even in Apple advance diagnostic program (from a netboot image), the built-in diagnostic (press D on boot) doesn't report any error.


Result: A new logic board from apple is on the way and I should get back my MBP next week.


(MBP 16inch, 2.3i9, 64G Ram, 2TB SSD, GPU 5500M 8GB)

Similar questions

131 replies

Jan 11, 2020 12:48 PM in response to damion112

I‘ve the same Problem. MBP stop to work, on reboot at ca. 70% it stop - fans blow up - reboot.

I tried SMC Reset, NVRAM Reset, repair the FS with desaster recovery. Reinstall macOS - without any effect.

The MBP boots without problems in single user/safe mode - crashreport is nearly the same as above.

I‘m now going to reinstall and transfer my files back to my previous MBP 15“ mid-2019.

Has someone an solution for this problem, or is it really a hardware problem and can only be fixed by swap logicboard?

Jan 20, 2020 11:01 AM in response to m0unt41nman

This guy did an update on Youtube... seems to be having the same experience with support of the issue.


https://www.youtube.com/watch?v=yAAHjE5U6Ow


Apple engineering seems to be lost on the problem. I won't have any update until 1/26 because my support engineer went on vacation. So I get to deal with multiple daily reboots on this until then :-(


I sure hope someone here stops back with some good news. I'm about ready to do a chargeback on my credit card and force a full return from Apple for a defective product (yes I'm outside the 15 day return window, but my CC company usually will side with the buyer, especially in this instance).

Feb 2, 2020 7:19 PM in response to HWTech

We don't yet know it is specific to the 16" MBP. ChazThePhoenix is running Catalina, which we are as well. If we can show this affecting other devices, we can likely rule out hardware.


Chaz, next time it does it, post the error log that pops up when you restart and asks you to report. If the same or similar, we are closer to finding the problem.

Mar 30, 2020 8:46 AM in response to oneeyedboxer

oneeyedboxer wrote:

I noticed every time there is an update release this thread get reopen. My recommendation to others is not to update till Apple addresses us all in this forum .

Apple is not here. This forum is regular users helping other users. If you want Apple to assist you, then click on the "Contact Support" link at the top right of this page and open up a support ticket for your system.

Apr 2, 2020 7:16 PM in response to damion112

I'm having the same problem. My computer reboots at least once a day. This is my 2nd 16 inch macbook pro. My first laptop was doing the same thing and then fully died where it could not be turned on. Took it to the apple store and they sent it in for repairs. A month and change later, I got a brand new laptop and now I'm having the same issues again:


MacBook Pro (16-inch, 2019)

2.4 GHz 8-Core Intel Core i9

64 GB 2667 MHz DDR4

Intel UHD Graphics 630 1536 MB

4 TB drive


Really disappointing for such a high end laptop.



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Hi Everyone i am getting the error below and my computer wont login. i have the new 2019 16in its less than 3 . weeks . old.

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