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August 10th, 2020 11:00
PowerEdge R410 memory configuration help
Hey all, I have the following memory sticks (six in total):
2 x 32GB
4 x 16GB
and I'm unsure as to how to configure them in my PowerEdge R410. I've tried a bunch of arrangements and keep getting DIMM mismatch message upon boot. Any help would be really appreciated.
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Dell-DylanJ
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2.9K Posts
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August 11th, 2020 07:00
No problem.
Let's first talk about the channels. You'll have your A bank and your B banks, which will be made of channels 0, 1, and 2 each. Channel 0 is A1 and A4 for processor 1 and B1 and B4 for processor 2. Slots 2 and 3 (for each bank) would have their own channels (IE channel 1 in the A bank is A2, but B2 in the B bank).
Do you know if your server is has one or two processors? If only one, we just need to be concerned with the A bank. If you have 2 processors, we'll want to populate the A bank correctly, then mirror that configuration to the B bank.
What I'd consider trying in a 2 proc config would be:
A1, B1: 32GB
A2, B2: 16GB
A3, B3: 16GB
Be advised though, this config may still not work. The manual doesn't explicitly call out support for 32GB DIMMs and I don't see any in my parts list. I do see some 16GB dual-rank RDIMMs, so I don't expect issues there. I'm just not 100% on the 32GB DIMMs. That said, they may still work fine. My old R710 ran both unvalidated memory and unvalidated drives for years.
Dell-DylanJ
6 Operator
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2.9K Posts
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August 10th, 2020 15:00
Hello,
Linked below is the owner's manual for the R410. Page 119 begins the section on memory and includes population guidelines. I would start by looking at that section, but let me know if you have follow-up questions.
https://dell.to/31D7I97
bedanizer
9 Posts
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August 11th, 2020 05:00
I really can't make heads or tails from these instructions. For example, what does this line mean:
"Memory modules of different sizes can be mixed in A1-A4 or B1-B4 (for example, 2-GB and 4-GB), but all populated channels must have identical configurations."
Does this mean that A1 has to match B1, and A2 has to match B2?
Or does it mean that A1, A2, and A3 have to match; while B1, B2 and B3 have to match?
bedanizer
9 Posts
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August 11th, 2020 13:00
Thank you for your answer. I had already tried the configuration but it yields the same DIMM mismatch message – so it's probably the 32GB unsupported sticks that are causing this, not anything to do with the memory configuration itself.