DDR5 Server Memory
DDR5 is the memory generation used by current Intel Xeon and AMD EPYC server platforms. DDR5 modules are keyed differently from DDR4, so they will not fit a DDR4 slot, and each module carries its own power management chip instead of relying on the motherboard. Server DDR5 is usually sold as registered ECC RDIMMs; note that the on-die error correction built into every DDR5 chip is not the same as full ECC, which needs an ECC module and a platform that supports it. When adding DDR5 to a server, match the module type, rank and speed to what the system already runs, and follow the maker’s population rules for each channel. The channel runs at the speed of the slowest module. Our listings carry the exact part number and spec, and every module is tested in a real server board before it ships.
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Tell us what you needDDR5 Server Memory: common questions
Is DDR5 backward compatible with DDR4 slots?+
No. The notch sits in a different place and the electrical design differs, so DDR5 modules only fit DDR5 slots.
Does all DDR5 have ECC?+
Every DDR5 chip has on-die error correction that protects data inside the chip. Full ECC, which also protects data on its way to the CPU, needs an ECC module such as an RDIMM and a platform that supports it.
What warranty comes with used memory?+
Used memory carries a 90-day warranty, and every order has 30-day returns.