UNSOLVED
Reliable Memory Technology problem
Hi
My 5820 suddenly started announcing on boot that the RMT system had found a problem and isolated the affected area. I decided to replace the memory chip with another I already had but there is a problem locating the affected DIMM. The Dell article on doing this says to find the appropriate entry in the BIOS System Logs menu and then
Select Dell Reliable Memory Technology Events from the System Logs sub-menu
Problem is I don't have that in the sub menu! The only sub menu entry I have is BIOS Events. So I can't see which DIMM is the problem as Dell describe it. The BIOS log details the times the RMT problems happened but not enough else. RMT is enabled in BIOS and I can't see anything else wrong.
The full instructions are here:
https://www.dell.com/support/kbdoc/en-uk/000064540/precision-workstations-where-do-i-look-for-dell-reliable-memory-technology-rmt-errors-to-confirm-memory-issues-and-locations?lang=en&ref=supp_lithium
Thanks for any help.
Also are there any restrictions on adding memory in term of matching capacities across slots etc?
TIA for any help.
1676
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Posted June 4th, 2021 00:00
I assume that answer is for the faulty DIMM that I don't know the location of currently?
TB
1658
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Posted June 4th, 2021 02:00
yes
The following table illustrates the memory configuration and population rules for the Dell Precision Tower 5820:
NOTE: 32 GB DIMMs are only supported on systems using Xeon W Series CPUs.
1546
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Posted June 9th, 2021 08:00
Sorry only just seen this as I had been working with a Dell technician privately last week.
Never discovered why I don't have the menu entry that tells me which DIMM it is and every memory test I ran failed to find anything. In the end it was a matter of pulling all the DIMMs out and replacing them one by one until the RMT error came up. Turned out to be a 16GB one so replaced it with the spare I had and all has been well since.
Also the machine had become unreliable with weird behavior and app crashes such as trying to writing to protected memory. That was before the RMT error came up and I had restarted it many times before.
I would like to know why I don't have the BIOS menu entry though as that would have saved a lot of wasted time solving this....
1542
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Posted June 9th, 2021 09:00
Glad that you got it solved.
Actually what's weird is that the dimm is not "turned" off by the bios. My older xeon ( different brand ) had a dimm fail while in windows and i realized it only weeks later. It simply isolated it live.and then turned it off
mazzinia_
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1701
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Posted June 3rd, 2021 16:00
The dimm should be the same model/capacity and ideally brand