Unsolved
1 Rookie
•
2 Posts
0
33
Trouble installing 8 DIMMs (256Gb) in a R540
Hello,
I am trying to install 256Gb of RAM in the form of 8 32Gb DIMMs by Micron, model: MTA36ASF4G72PZ-3G2R in a dual CPU (Intel Xeon Silver 4110) Poweredge R540.
I have used this same model of DIMMs on other R540s, I have updated BIOS (2.21.1) and iDRAC 7.00.00.171
I get a Memory Reference Code (MRC) error - Multi-bit memory error on DIMM_B4
I followed the Dell installation manual and it is unclear if I should install in A1,A2,A3,A4 and B1,B2,B3,B4 or whether I should install in A1,A2,A4,A5 and B1,B2,B4,B5 so I tried both. I get an error on DIMM_B4 in both cases.
I also tried installing in A1,A2,A3,A5 and B1,B2,B3,B5 and I get an error on DIMM_B5 in this case. The only setup where 256Gb are recognized with no errors is an unbalanced installation in A1,A2,A3,A4,A5 and B1,B2,B3.
I also tried resetting twice but the error on B4 always appears. Any ideas?
Is the unbalanced setup with 5 DIMMS on the first CPU and 3 on the second ok?
In other R540 we have at most 6 DIMMs so the problem has not shown up.
Thanks in advance,
Martin
DELL-Chris H
Moderator
Moderator
•
8.8K Posts
0
May 10th, 2024 18:14
Mrachilli,
Unfortunatly I am not seeing those dimms listed as supported on the server, as it looks like it is mostly supported on precision workstations, so I may be limited in scope.
From what it looks like for the R540 memory population rules, on page 64 here, if you are only running 4 dimms per processor then you would populate them in slot 1, 2, 4, 5.
I would try that and let me know what you see.