HPE ProLiant Gen11 Memory: DL360 & DL380 DDR5 ECC RDIMM Compatibility & Upgrade
- server-parts.eu server-parts.eu
- 6 days ago
- 5 min read
DDR5 memory for HPE ProLiant Gen11 servers is hard to source right now, especially for HPE ProLiant DL360 and HPE ProLiant DL380 Gen11. As more companies upgrade, availability is tight.
HPE ProLiant Gen11 Memory: Save Up To 80%
✔️ 5-Year Warranty – No Risk: Pay Only After Testing
Choosing the correct DDR5 ECC RDIMM is very important, the wrong module can reduce performance or cause compatibility issues.
HPE ProLiant Gen11 Memory Overview
All HPE ProLiant Gen11 servers from Hewlett Packard Enterprise share the same memory requirements:
DDR5 only
ECC (Error Correcting Code)
Registered DIMM (RDIMM)
No UDIMM support
No DDR4 support
If a module is not DDR5 ECC RDIMM, it is not compatible with HPE ProLiant Gen11 servers.
HPE ProLiant DL360 Gen11 Memory Compatibility
HPE ProLiant DL360 Gen11 Memory Type
DDR5 ECC RDIMM only
No DDR4
No UDIMM
This applies to all DL360 Gen11 CPU configurations.
HPE ProLiant DL360 Gen11 Memory Speeds
Supported memory speed depends on CPU generation and DIMM population:
DDR5-5600 MT/s
Supported with capable CPUs (typically 5th Gen Intel Xeon)
Requires 1 DIMM per channel (1DPC)
DDR5-4800 MT/s
Used when:
CPU supports only 4800
2 DIMMs per channel (2DPC) are installed
Important rule:
The system always runs at the speed of the slowest supported component (CPU or DIMM layout).
While DDR5-5600 is achievable in lightly populated systems, most enterprises standardize on DDR5-4800 for stability, availability, and predictable fleet behavior.
HPE ProLiant DL360 Gen11 Memory Slots
16 DIMM slots per CPU
Dual-CPU system → 32 DIMM slots total
Supports 1DPC and 2DPC
HPE ProLiant DL360 Gen11 Memory Capacity
Supported capacities using DDR5 ECC RDIMM:
256 GB → 8 × 32 GB or 4 × 64 GB
512 GB → 8 × 64 GB
1 TB → 16 × 64 GB
2 TB → 16 × 128 GB
Up to 8 TB total → 32 × 256 GB RDIMMs (with 5th Gen Xeon and full population).
Confirm QuickSpecs for your exact configuration.
HPE ProLiant DL380 Gen11 Memory Compatibility
HPE ProLiant DL380 Gen11 Memory Type
The DL380 Gen11 uses the same memory architecture as the DL360 Gen11:
DDR5 ECC RDIMM only
No DDR4
No UDIMM
There is no memory-type difference between DL360 Gen11 and DL380 Gen11.
HPE ProLiant DL380 Gen11 Memory Speeds
Memory speed rules are identical to DL360 Gen11:
DDR5-5600 MT/s → 1DPC with supported CPUs
DDR5-4800 MT/s → 2DPC or CPU-limited systems
DDR5-4800 is most commonly deployed in production environments.
HPE ProLiant DL380 Gen11 Memory Slots
16 DIMM slots per CPU
Dual-CPU system → 32 DIMM slots total
Supports 1DPC and 2DPC
HPE ProLiant DL380 Gen11 Memory Capacity
Supported capacities using DDR5 ECC RDIMM:
256 GB → 8 × 32 GB or 4 × 64 GB
512 GB → 8 × 64 GB
1 TB → 16 × 64 GB
2 TB → 16 × 128 GB
Up to 8 TB total → 32 × 256 GB RDIMMs (with 5th Gen Xeon and full population).
These specifications align with DL380 Gen11 QuickSpecs and real-world enterprise deployments.
HPE Gen11 Memory Population Rules (HPE ProLiant DL360 & DL380)
These rules apply to all Gen11 platforms:
Use DDR5 ECC RDIMM only
Populate memory symmetrically across CPUs
Avoid mixing memory speeds
Mixing capacities works but is not recommended
2DPC forces DDR5-4800, even with 5600-rated modules
Keep BIOS and firmware up to date for DDR5 stability
HPE Smart Memory Note
Using HPE Smart Memory (or fully qualified compatible alternatives):
Enables full iLO monitoring
Provides predictive failure alerts
Avoids non-HPE memory warnings
Common HPE ProLiant Gen11 DDR5 ECC RDIMM Modules
The following capacities are most commonly deployed in HPE ProLiant DL360 Gen11 and DL380 Gen11 systems:
32 GB DDR5 ECC RDIMM
P43328-B21 (DDR5-4800, 2Rx8)
64 GB DDR5 ECC RDIMM
P43331-B21 (DDR5-4800, 2Rx4)
P64707-B21 variants (5600-capable, CPU-dependent)
128 GB DDR5 ECC RDIMM
P43334-B21 (DDR5-4800 variants)
Common in dense virtualization and database workloads
256 GB DDR5 ECC RDIMM
High-density modules (often referenced as P43337-B21–class equivalents)
Used to reach 4–8 TB total system memory
HPE Smart Memory ensures full platform integration, while qualified compatible modules are widely used in enterprise refurbished and post-warranty environments.
Enterprise DDR5 ECC RDIMM Manufacturers (HPE ProLiant Gen11-Compatible)
For HPE ProLiant Gen11 servers, DDR5 ECC RDIMMs are typically based on enterprise DRAM from:
Samsung:
Samsung 32 GB DDR5 ECC RDIMM – 4800 MT/s
Samsung 64 GB DDR5 ECC RDIMM – 4800 MT/s or 5600 MT/s
Samsung 128 GB DDR5 ECC RDIMM – 4800 MT/s or 5600 MT/s
Samsung 256 GB DDR5 ECC RDIMM – high-density configurations
SK Hynix
SK Hynix 32 GB DDR5 ECC RDIMM – 4800 MT/s
SK Hynix 64 GB DDR5 ECC RDIMM – 4800 MT/s or 5600 MT/s
SK Hynix 128 GB DDR5 ECC RDIMM – 4800 MT/s or 5600 MT/s
SK Hynix 256 GB DDR5 ECC RDIMM – high-density configurations
Micron
Micron 32 GB DDR5 ECC RDIMM – 4800 MT/s
Micron 64 GB DDR5 ECC RDIMM – 4800 MT/s or 5600 MT/s
Micron 128 GB DDR5 ECC RDIMM – 4800 MT/s or 5600 MT/s
Micron 256 GB DDR5 ECC RDIMM – high-density configurations
These Tier-1 suppliers provide the DRAM used in most HPE Smart Memory and qualified compatible modules.
In refurbished scenarios, Samsung / SK hynix / Micron-based RDIMMs that match Gen11 specs (DDR5, ECC, RDIMM, correct rank and speed) are commonly used to reduce cost while maintaining stability.
HPE ProLiant DL360 vs DL380 Gen11 Memory Comparison
Feature | DL360 Gen11 | DL380 Gen11 |
Memory type | DDR5 ECC RDIMM | DDR5 ECC RDIMM |
Max speed | 4800 / 5600 MT/s | 4800 / 5600 MT/s |
DIMM slots (2 CPU) | 32 | 32 |
Max capacity | Up to 8 TB | Up to 8 TB |
Population rules | Identical | Identical |
Conclusion: From a memory perspective, HPE ProLiant DL360 Gen11 and HPE ProLiant DL380 Gen11 are functionally identical.
HPE ProLiant Gen11 Memory Price & Buying Advice
DDR5 memory pricing for the HPE DL380 Gen11 is mainly driven by capacity and speed. In most enterprise setups, DDR5-4800 ECC RDIMM is preferred due to better availability, lower cost, and wide adoption, while DDR5-5600 is typically used only with light DIMM populations. Costs are often reduced by using refurbished or HPE-qualified compatible memory and standardizing SKUs across systems.
HPE ProLiant Gen11 Memory Price
DDR5 pricing varies by capacity and speed
DDR5-4800 is cheaper and more available
DDR5-5600 is used mainly with low DIMM counts
Refurbished, qualified memory helps control costs
HPE ProLiant Gen11 Buying Advice
Use DDR5-4800 ECC RDIMM
Prefer 32 GB, 64 GB, or 128 GB modules
Avoid mixing speeds and vendors
Plan DIMM population early to prevent down-clocking
Frequently Asked Questions (FAQ) – HPE ProLiant Gen11 Memory
What RAM does HPE ProLiant Gen11 use?
DDR5 ECC RDIMM only. DDR4 and UDIMM are not supported.
Is DDR5-5600 supported on HPE ProLiant DL360 Gen11 and DL380 Gen11?
Yes, with compatible CPUs and 1DPC. With 2DPC, memory runs at DDR5-4800.
What is the maximum memory capacity of HPE ProLiant DL380 Gen11?
Up to 8 TB total, using 32 × 256 GB DDR5 ECC RDIMMs (platform-dependent).
Can I use Samsung, SK hynix, or Micron DDR5 ECC RDIMM?
Yes, if modules meet DDR5, ECC, RDIMM, speed, and population requirements.
Do I have to use HPE Smart Memory?
It is recommended for full iLO monitoring, but qualified compatible memory is widely used.
HPE ProLiant Gen11 Memory: Save Up To 80%
✔️ 5-Year Warranty – No Risk: Pay Only After Testing
Sources: HPE ProLiant Gen11 Memory
HPE ProLiant DL360 Gen11 QuickSpecs — official memory slot count and DDR5 support: HPE ProLiant DL360 Gen11 QuickSpecs (memory details)
HPE ProLiant DL380 Gen11 QuickSpecs — shows memory support and configuration basics for DL380 Gen11: HPE ProLiant DL380 Gen11 QuickSpecs (memory)
HPE ProLiant DL360 Gen11 specs page — confirms 16 DIMMs per CPU and up to 8 TB DDR5 memory: HPE ProLiant DL360 Gen11 Server – Price & Specs with memory info
HPE ProLiant DL380 Gen11 specs page — confirms DDR5 memory capacity and channels per processor: HPE ProLiant DL380 Gen11 Server – Specs & Memory Capacity
Memory configuration reference — shows DDR5 Registered (RDIMM) support up to high capacities: HPE ProLiant DL380 Gen11 Memory Configuration Reference
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