Can RAM upgrade interfere with Time Machine?

[Wineone]

Added RAM – Time Machine fails. Error: 92.

I added a new 5TB external backup drive to my Mac. I also added 36 GB RAM.

The external drive [Mac OS Extended (Journaled)] worked appropriately. When I later added the additional RAM the backups failed. Error 92.

I removed the RAM, restarted the MAC, and erased/reformatted the external drive. Time Machine worked.

I added the RAM back; Time Machine failed – Error 92.

"Coincidence is not causality," but in this case could my additional RAM be responsible for the Time Machine failure or are there other possible causes?

JC

 

[cmaier]

Added RAM – Time Machine fails. Error: 92.

I added a new 5TB external backup drive to my Mac. I also added 36 GB RAM.

The external drive [Mac OS Extended (Journaled)] worked appropriately. When I later added the additional RAM the backups failed. Error 92.

I removed the RAM, restarted the MAC, and erased/reformatted the external drive. Time Machine worked.

I added the RAM back; Time Machine failed – Error 92.

"Coincidence is not causality," but in this case could my additional RAM be responsible for the Time Machine failure or are there other possible causes?

JC

It seems unlikely, but it’s at least theoretically possible if the RAM is bad.

 

[RedTomato]

It seems unlikely, but it’s at least theoretically possible if the RAM is bad.

I'm not even sure if that's possible. Also do you mean you added 36GB to existing RAM or upgraded to a total of 36GB? How many RAM sticks and what size?

In any case, to follow from cmaier, you could try the new RAM one stick at a time and see if any of them also cause Time Machine to fail.

Or run Apple Hardware Test on the RAM depending on which mac you have. (though I've never found Apple Hardware Test very useful.) https://support.apple.com/en-us/HT201257

 

[Wineone]

Thanks for the input.

Tested the RAM. It's okay. As is the external drive.

So here's the status: took the 32 of 40 RAM out (I said accidentally said 36 earlier), reformatted the hard drive, the drive works. I'll live without the additional RAM until I can lug the unit into the local genius bar and have them work at it.

I'd be happy to post what they tell me if anyone is interested in learning what the issue was.
Thanks for the assist!

 

[cmaier]

Thanks for the input.

Tested the RAM. It's okay. As is the external drive.

So here's the status: took the 32 of 40 RAM out (I said accidentally said 36 earlier), reformatted the hard drive, the drive works. I'll live without the additional RAM until I can lug the unit into the local genius bar and have them work at it.

I'd be happy to post what they tell me if anyone is interested in learning what the issue was.
Thanks for the assist!

Let us know.