HP Server Memory — ProLiant Compatible RAM

DDR4 & DDR5 ECC RDIMM modules for every HPE ProLiant generation

About Server Memory

Finding the right memory for your HP ProLiant server shouldn't require cross-referencing part number spreadsheets. We stock HPE-compatible DDR4 and DDR5 ECC RDIMM modules for every ProLiant generation — from DL360 Gen9 through DL380 Gen11 and beyond.

Every module we sell is rigorously tested for compatibility with HPE's memory controller specifications. Whether you're upgrading a single DL380 from 128 GB to 256 GB or provisioning memory for an entire VMware cluster, you'll find the right part number at the right price with same-day dispatch.

Why HP Server Memory Compatibility Matters

HPE servers enforce strict memory population rules. Mixing ranks, speeds, or capacities within a channel degrades performance or prevents POST. Our product listings include compatible server models so you can order with confidence. Common configurations include:

16 GB DDR4-2933 RDIMM — entry-level DL360/DL380 Gen10 upgrades
32 GB DDR4-3200 RDIMM — the sweet spot for virtualization hosts
64 GB DDR4-3200 LRDIMM — high-density for database servers
32 GB DDR5-4800 RDIMM — ProLiant Gen11 and newer platforms

Need help selecting the right module? Our team verifies compatibility before every order ships. Contact us with your server model and current configuration for a personalized recommendation.

Featured Server Memory Products

Browse all 27,974 Server Memory SKUs.

Frequently Asked Questions

What type of RAM does an HP ProLiant DL380 Gen10 use?

The HPE ProLiant DL380 Gen10 uses DDR4 ECC Registered DIMMs (RDIMMs) or Load-Reduced DIMMs (LRDIMMs). It supports speeds up to DDR4-2933 with 24 DIMM slots and a maximum of 3 TB total memory using 128 GB LRDIMMs.

Can I mix different memory sizes in an HP server?

HPE recommends populating all channels with identical DIMMs for optimal performance. While the server may POST with mixed sizes, you will lose dual-channel/interleaving performance. Always match capacity, rank, and speed within each memory channel.

Is third-party memory compatible with HP ProLiant servers?

Yes. HP ProLiant servers work with any DDR4/DDR5 ECC RDIMM that meets the JEDEC standard specifications. Third-party memory from Samsung, Hynix, and Micron is fully compatible and often identical to OEM-branded modules at 40-60% lower cost.

How much memory do I need for VMware on HP servers?

For VMware ESXi on HP ProLiant servers, plan for 32 GB minimum (host overhead + a few VMs), 128-256 GB for 15-30 VMs, and 512 GB+ for dense consolidation. The most popular configuration is 8× 32 GB RDIMMs (256 GB) for DL360/DL380 Gen10 virtualization hosts.