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Till yesterday my macbook was working totally normally. But when I tried to boot it today nothing would show up. After s lot of attempts it booted but the login window immediately got blackened upto 80% of the screen. And trackpad became unresponsive. Then it shut down. I tried to boot it again but could not make it past the login window and sometimes when I could, it crashed within 1-2 minutes.

I got the issue report which said something like this "CATERR detected! No MCA data found".

Searched online but couldn't find anything helpful.

It even crashes in safe mode or after SMC reset.

MacBook Pro 13″, macOS 10.15

Posted on Jun 24, 2020 8:48 AM

Top-ranking reply

John Galt

Level 10

146,234 points

Posted on Jun 24, 2020 3:43 PM

Contact Support, because that Mac is suffering from a hardware fault.

CATERR = catastrophic error condition

MCA = machine check architecture

Not that any of it matters. Those errors are the result of a serious internal failure of the Mac's CPU. For those with too much time on their hands, https://software.intel.com/content/www/us/en/develop/articles/intel-sdm.html#combined

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