Below is the memory configurations for your system.
Memory specifications Features Specifications Type DDR4 ECC RDIMMs - Supported only with Xeon W Series CPUs DDR4 Non-ECC UDIMMs supported with Core X Series CPUs Speed 2666 MHz (Discontinued on system configurations purchased after October 2020) 2933 MHz 3200 MHz
NOTE: 2933 MHz RDIMMs are not offered with Xenon W Skylake Series CPUs.
NOTE: Computer configurations offered with 2933 MHz RDIMMs operating with Sky Lake processors will operate at 2666 MHz.
NOTE: Computer configurations offered with 3200 MHz RDIMMs operating with Cascade Lake processors will operate at 2933 MHz. Connectors 8 DIMM Slots DIMM capacities 32 GB per slot 2666 MHz DDR4 64 GB per slot 2933 MHz DDR4 64 GB per slot 3200 MHz DDR4 Minimum memory 8 GB (1x8 GB) Maximum memory 384 GB for Sky Lake Series CPUs 768 GB for Cascade Lake Series CPUs
NOTE: The memory speed depends on the CPU in the system.
It is possible, but it is not recommended because many restrictions will apply. the most obvious is that larger modules will be partially excluded from multichannel interleaving, or 4-channel interleaving may be disabled. I am not sure how it is on Dell boards. Ideally, all modules should be equal, desirably from the same batch with consecutive serial numbers.
So, 128Gb for you is the optimal size, intended for growth of software requirements in the next few years.
ashley_1
1 Rookie
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10 Posts
0
September 29th, 2021 02:00
https://browser.geekbench.com/v5/cpu/289073
This geekbench shows 80GB memory with 4 Channel.
I think this is 2x32GB + 2x8GB right?
DELL-Jesse L
Moderator
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17.9K Posts
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September 29th, 2021 05:00
Memory specifications
Features Specifications
Type
DDR4 ECC RDIMMs - Supported only with Xeon W Series CPUs
DDR4 Non-ECC UDIMMs supported with Core X Series CPUs
Speed
2666 MHz (Discontinued on system configurations purchased after October 2020)
2933 MHz
3200 MHz
NOTE: 2933 MHz RDIMMs are not offered with Xenon W Skylake Series CPUs.
NOTE: Computer configurations offered with 2933 MHz RDIMMs operating with Sky Lake processors will operate at 2666 MHz.
NOTE: Computer configurations offered with 3200 MHz RDIMMs operating with Cascade Lake processors will operate at 2933 MHz.
Connectors 8 DIMM Slots
DIMM capacities
32 GB per slot 2666 MHz DDR4
64 GB per slot 2933 MHz DDR4
64 GB per slot 3200 MHz DDR4
Minimum memory 8 GB (1x8 GB)
Maximum memory
384 GB for Sky Lake Series CPUs
768 GB for Cascade Lake Series CPUs
NOTE: The memory speed depends on the CPU in the system.
Dell-Jesse L
Andy812
2 Intern
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202 Posts
0
September 29th, 2021 16:00
It is possible, but it is not recommended because many restrictions will apply. the most obvious is that larger modules will be partially excluded from multichannel interleaving, or 4-channel interleaving may be disabled. I am not sure how it is on Dell boards. Ideally, all modules should be equal, desirably from the same batch with consecutive serial numbers.
So, 128Gb for you is the optimal size, intended for growth of software requirements in the next few years.
DELL-Chris M
Community Manager
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56.9K Posts
0
October 4th, 2021 10:00
Andy812 was correct. 70GB and 80GB were never tested by Dell. So there will be some issues.
Precision 5820 Tower Owner's Manual page 80, validated memory configurations =
