Aloha from O'ahu,
Having some performance issues with my 2019 MacPro7,1.
I check the DIMM configuration and get this:
So... I don't have 7 DIMMs, I've got 6. Even the Apple diagnostic "sees" this.
Second, for 6 DIMMs I believe these are arranged in the right slots.
Any thoughts on what might be going on -- and what I might do about it?
Mahalo!
Cat
Mac Pro, macOS 13.0
You are looking at the results of the power-on self test. It is telling you the DIMM in slot 10 has been 'set aside' and is not being used. You can confirm that by using:
menu > about this Mac > (system Report) > memory
Read more in this article about ECC RAM:
User Tip: Mac Pro and Error Correcting Co… - Apple Community
You can try removing and re-seating it, which sometimes improves the situation temporarily. Generally the failure returns after a brief resolution.
You are looking at the results of the power-on self test. It is telling you the DIMM in slot 10 has been 'set aside' and is not being used. You can confirm that by using:
menu > about this Mac > (system Report) > memory
Read more in this article about ECC RAM:
User Tip: Mac Pro and Error Correcting Co… - Apple Community
You can try removing and re-seating it, which sometimes improves the situation temporarily. Generally the failure returns after a brief resolution.
Check the DIMM is slot 10. It does not show any size on the report.
80 G is five times 16 with seven empty. That is likely a software error, reporting the number empty (seven) instead of the number active (five).
Your Mac Pro with Xeon processor features Error Correcting Code DIMMs. They are tested extensively every time your Mac starts up.
If some DIMMs are showing as not present, it means they encountered an error during the most recent Power-On Self Test. That failing DIMM is set aside, and MacOS does not use it.
It is possible that one of the DIMMs isnt connected properly, and is not showing. If you open the memory bay of the mac pro, there should be a guide on which slots to populate, however many DIMMs you have.
i have added the guide for 6 DIMMs below
Aloha!
Mahalo!
So your best guess is the DIMM in slot 10 has failed?
Is there any way to get access to the read out from the Power-On Self Test? Is there a way to confirm that DIMM has failed?
I'm not sure I've ever had a DIMM fail before... I've replaced them to install larger ones, but never because they failed.
Thanks again!
Cheers,
Cat
Mahalo!
Thanks. Will dive into the guts of the beast!
Cheers!
DIMM configuration in 2019 MacPro 7,1
