Dell Poweregde R440 Memory Configuration

Hello, I hope this helps.

 

General memory module installation guidelines

https://www.dell.com/support/manuals/en-us/poweredge-r440/per440_ism_pub/general-memory-module-installation-guidelines?guid=guid-acbc0f13-dedb-492b-a0b0-18303ded565a&lang=en-us

 

 

• All DIMMs must be DDR4.
• RDIMMs and LRDIMMs must not be mixed.
• 64 GB LRDIMMs that are DDP (Dual Die Package) LRDIMMs must not be mixed with 128 GB LRDIMMs that are TSV (Through Silicon Via/3DS) LRDIMMs.
• x4 and x8 DRAM based memory modules can be mixed.
• Up to two RDIMMs can be populated per channel regardless of rank count.
• Up to two LRDIMMs can be populated per channel regardless of rank count.
• A maximum of two different ranked DIMMs can be populated in a channel regardless of rank count.
• If memory modules with different speeds are installed, they will operate at the speed of the slowest installed memory module(s).
• Populate memory module sockets only if a processor is installed.
• For single-processor systems, sockets A1 to A10 are available.
• For dual-processor systems, sockets A1 to A10 and sockets B1 to B6 are available.
• Populate all the sockets with white release tabs first, followed by the black release tabs.
• When mixing memory modules with different capacities, populate the sockets with memory modules with the highest capacity first.

NOTE:For example, if you want to mix 8 GB and 16 GB memory modules, populate 16 GB memory modules in the sockets with white release tabs and 8 GB memory modules in the sockets with black release tabs.

• Memory modules of different capacities can be mixed provided other memory population rules are followed.

NOTE:For example, 8 GB and 16 GB memory modules can be mixed.

• In a dual-processor configuration, the memory configuration for each processor must be identical.

NOTE:For example, if you populate socket A1 for processor 1, then populate socket B1 for processor 2, and so on.

• Mixing of more than two memory module capacities in a system is not supported.
• Unbalanced memory configurations will result in a performance loss so always populate memory channels identically with identical DIMMs for best performance.
• Populate six identical memory modules per processor (one DIMM per channel) at a time to maximize performance.

DIMM population update for Performance Optimized mode with quantity of 4 and 8 DIMMs per processor.

• When the DIMM quantity is 4 per processor, the population is slot 1, 2, 4, 5.
• When the DIMM quantity is 8 per processor, the population is slot 1, 2, 4, 5, 7, 8, 9, 10.

 

 

 

 

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