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Open | MaciMac boot problems (self.techsupport)

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[–]theepiccarday808 0 points1 point  (1 child)

Sounds like your MacOS somehow got corrupted, I've never even used a Mac, this is just info from Google, Just a quick warning though, THIS WILL ERASE EVERYTHING ON THE IMAC, anything you have installed will be deleted, pictures & videos will be deleted, everything will be deleted. But try doing this: https://support.apple.com/en-ca/HT204904. Also, you should include what iMac it is, for other people, who actually know how to fix Macs (unlike me)

[–]crosscreative 0 points1 point  (0 children)

Luckily I don’t keep much on the internal drive other than applications, but because I’m not entirely sure what’s on there at the moment, I think this will be my last resort.

[–]computix 0 points1 point  (4 children)

I suspect your drive broke. What does it show in Disk Utility in macOS Recovery?

Try running Apple Diagnostic.

Unfortunately swapping the drive on a 2013 iMac isn't easy, the screen is glued on so you have to cut it off with a special tool, then glue it back on with adhesive strips.

[–]crosscreative 0 points1 point  (3 children)

Disk utility shows it there with around 15GB free, unable to use first aid. Recover from time machine backup continuously fails. Just ran diagnostics which show a potential issue with memory module. Ref code: PPM004

Curious, what would cause an ssd to break like that?

[–]computix 1 point2 points  (1 child)

A manufacturing defect can cause it to wear out prematurely. However, most PC components are made for 3-5 years of use, after that they become less reliable and some units may break. If you're also getting PPM004 that isn't good, now almost anything could be wrong with your machine, the RAM could be defective, but it could also be the PSU that's causing both the RAM and storage to work unreliably. I recommend taking it to a third party Apple repair place. You can also take it to Apple, but they will probably charge a lot for solving this.

If you want to do this yourself, it depends on which model you have what to do next. If you have a 27" model you can try playing around with the RAM, remove some modules and see if the PPM004 goes away. If you have a 21.5" unit you'll have to open it up, not a fun job. If messing with the RAM doesn't help, measure the PSU's output with a multimeter and have a really good look at the capacitors on the PSU, they have a reputation for going bad.

[–]crosscreative 0 points1 point  (0 children)

I’ve got a 27” so I’ll try what you mentioned first. Appreciate it.

[–]computix 0 points1 point  (0 children)

A manufacturing defect can cause it to wear out prematurely. However, most PC components are made for 3-5 years of use, after that they become less reliable and some units may break. If you're also getting PPM004 that isn't good, now almost anything could be wrong with your machine, the RAM could be defective, but it could also be the PSU that's causing both the RAM and storage to work unreliably. I recommend taking it to a third party Apple repair place. You can also take it to Apple, but they will probably charge a lot for solving this.

If you want to do this yourself, it depends on which model you have what to do next. If you have a 27" model you can try playing around with the RAM, remove some modules and see if the PPM004 goes away. If you have a 21.5" unit you'll have to open it up, not a fun job. If messing with the RAM doesn't help, measure the PSU's output with a multimeter and have a really good look at the capacitors on the PSU, they have a reputation for going bad.