CPU Machine Check Architecture Error Dump

Hello everyone. I had the above error code thrown and rebooted my MBP. My MBP has the following specs:


2.6 GHz 6-Core Intel Core i7 2019

64 GB 2667 MHz DDR4

Intel UHD Graphics 630 1536 MB

OS: 14.4 (23E214)

(2) 500Gb internal SSD

It's been running fine until today. This was the following error:


CPU Machine Check Architecture Error Dump (CPU: UNKNOWN, CPUID: 0x906EA)

Core: 0

IA32_MC3_STATUS=0xBE00000000800400

IA32_MC3_CTL=0x0

IA32_MC3_ADDR=0xFFFFFF801316E98F

IA32_MC3_MISC=0xFFFFFF801316E98F

Core: 0

IA32_MC4_STATUS=0xFE00000000800400

IA32_MC4_CTL=0x0

IA32_MC4_ADDR=0xFFFFFF801316E98F

IA32_MC4_MISC=0xFFFFFF801316E98F

Core: 0

IA32_MC11_STATUS=0xEE0000000040110A

IA32_MC11_CTL=0x0

IA32_MC11_ADDR=0xFF7ED040

IA32_MC11_MISC=0x47880000086


I have the report from EtreCheck provided the following information:


I figured some others may have had an issue as I have and would like to troubleshoot the issue. Any assistance is greatly appreciated. Thank you in advance.

MacBook Pro (2017 – 2020)

Posted on Mar 21, 2024 11:01 AM

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Question marked as Top-ranking reply

Posted on Mar 21, 2024 11:26 AM

WV_Hun wrote:

Hello everyone. I had the above error code thrown and rebooted my MBP. My MBP has the following specs:

2.6 GHz 6-Core Intel Core i7 2019
64 GB 2667 MHz DDR4
Intel UHD Graphics 630 1536 MB
OS: 14.4 (23E214)
(2) 500Gb internal SSD
It's been running fine until today. This was the following error:

CPU Machine Check Architecture Error Dump (CPU: UNKNOWN, CPUID: 0x906EA)


please note: < panic(cpu 1 caller 0xfffffff01f7001b4): x86 CPU CATERR detected>


MCA = machine check architecture are hardware or very low-level software or firmware.


CATERR = catastrophic error condition, asserted by the processor



I would highly suspect you have a hardware issue—


In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"

Genius Bar Reservation and Apple Support Options - Apple


Outside the USA

Contact Apple for support and service - Apple Support




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4 replies
Question marked as Top-ranking reply

Mar 21, 2024 11:26 AM in response to WV_Hun

WV_Hun wrote:

Hello everyone. I had the above error code thrown and rebooted my MBP. My MBP has the following specs:

2.6 GHz 6-Core Intel Core i7 2019
64 GB 2667 MHz DDR4
Intel UHD Graphics 630 1536 MB
OS: 14.4 (23E214)
(2) 500Gb internal SSD
It's been running fine until today. This was the following error:

CPU Machine Check Architecture Error Dump (CPU: UNKNOWN, CPUID: 0x906EA)


please note: < panic(cpu 1 caller 0xfffffff01f7001b4): x86 CPU CATERR detected>


MCA = machine check architecture are hardware or very low-level software or firmware.


CATERR = catastrophic error condition, asserted by the processor



I would highly suspect you have a hardware issue—


In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"

Genius Bar Reservation and Apple Support Options - Apple


Outside the USA

Contact Apple for support and service - Apple Support




Mar 21, 2024 7:05 PM in response to WV_Hun

The Logic Board on that MacBook Pro 16" (2019) model has an extremely high rate of failure. Those "ProxiedDevice-Bridge" panic logs (60 listed in the report) are from the T2 security chip which is tied to just about everything on the Logic Board is unfortunately common to see on this model.


While this may be a nearly new unused computer, I would suggest taking the money you would use for repairs towards another laptop instead. I have seen multiple posts over the last few weeks where people who had this exact model laptop repaired, still had issues with the replacement Logic Boards. Some users reported Kernel Panics even after the 2nd repair and Apple was refusing to repair them again...possibly because some of these failures may not occur often enough for a tech to see in person. It does not help that Apple does not train their techs to analyze Kernel Panic logs and many times the Apple service diagnostics won't report a failure.


It really pains me to offer that advice since I prefer repairs to keep computers running, but I hate to see anyone throw money away too.


Your laptop is really a puzzle since it is nearly unused. Almost seems like age of the components may be playing a part here since I have been seeing more users on this forum reporting issues with this model laptop recently than in the previous year or two.


Sorry for the bad news.


Mar 21, 2024 3:22 PM in response to WV_Hun

WV_Hun wrote:

Thank you for the quick response. I live in the middle of WV. There are NO Apple stores in the state. I’m (Which is really odd.)


Computers Plus, Inc. - Apple Authorized Service Provider

301 RHL Blvd Ste 2, Charleston, WV 25309


I would search further for your area refer to : Find Apple / Apple Authorized Service Providers - Locations



if the safe is not ventilated or an additional low voltage warmer— condensation very well could cause water damage after 3 years...(?)

Mar 21, 2024 2:36 PM in response to leroydouglas

Thank you for the quick response. I live in the middle of WV. There are NO Apple stores in the state. I’m (Which is really odd.)


Does the error indicate a processor issue? Shocked tbh. I have had this laptop brand new. It sat in a safe for 3 years; never powered on in that time. 1 month ago I wiped everything and started from scratch with it. I would hate to think it's going to fail. It is not my main computer I use, and was going to switch to it.

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CPU Machine Check Architecture Error Dump

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