DDR5 Cisco UCS Memory: M7 & M8 Servers

40 products

Showing 1 - 24 of 40 products

DDR5 memory upgrades for Cisco UCS M7 and M8 servers: ECC registered (RDIMM) modules from 16GB to 256GB, at DDR5-4800, DDR5-5600 and DDR5-6400. To find yours, type your server model (for example C220 M7) or your Cisco part number (for example UCS-MRX64G2RE3) into the search bar at the top of the page.

This collection holds two kinds of listings. Server listings (titled "Cisco UCS" + model) are matched to one UCS model and offer every supported size in single modules and matched kits. Part-number listings (titled with a Cisco PID such as UCS-MRX32G1RE1) are matched to one Cisco memory part number: use them when you are replacing or adding to modules you already have, or ordering from a Cisco quote.

DDR5 Cisco UCS servers

M8 (Intel Xeon 6, AMD EPYC 9004/9005), DDR5-6400: C220 M8, C240 M8, C225 M8, C245 M8, X210c M8, X215c M8, X410c M8, XE130c M8, XE150c M8. AI servers: C845A M8, C880A M8, C885A M8. The AMD-based C225 M8, C245 M8 and X215c M8 also have DDR5-4800 listings.
M7 with 4th Gen Xeon Scalable, DDR5-4800: C220 M7, C240 M7, X210c M7, X410c M7. With 5th Gen Xeon Scalable, DDR5-5600 with 48GB and 96GB sizes added: C220 M7, C240 M7, X210c M7.
By Cisco part number: UCS-MRX and UCSX-MR parts ending in RE1 are DDR5-4800, RE3, RF3 and RG3 are DDR5-5600 and RE5 are DDR5-6400, for example UCS-MRX64G2RE3 and UCS-MRX64G2RE5.

Choosing DDR5 for a Cisco UCS server

Speed follows the processor: 4th Gen Xeon Scalable and EPYC 9004 run DDR5 at up to 4800, 5th Gen Xeon Scalable at up to 5600, and Xeon 6 and EPYC 9005 platforms at up to 6400. Faster modules run at the speed the platform supports.
Population: DDR5 platforms have 8 or 12 memory channels per processor. Install identical modules and fill every channel on each processor the same way for full bandwidth.
Older servers: DDR5 modules do not fit M6 or earlier servers, which use DDR4; see DDR4 Cisco memory.

Not sure which module fits? Send us your Cisco UCS model or part number and we will confirm the right module before you order.

Buying in volume direct from NEMIX RAM

NEMIX RAM is a US-based server memory specialist, in business since 1993. Every module is researched, matched, and compatibility-tested by NEMIX RAM, is JEDEC-compliant, and is backed by a lifetime warranty. Purchase orders, net terms and volume pricing are available for data centers, enterprise IT, service providers, research labs, universities, government buyers and resellers. Request a quote for a UCS domain refresh, a full chassis or multiple identical servers.

More Cisco memory: Cisco UCS memory by server model · DDR5 Cisco memory · DDR4 Cisco memory · Cisco LRDIMM · Cisco OEM part numbers (UCS-MR, UCS-ML).

Also searched as: Cisco DDR5 memory, Cisco UCS DDR5 RAM, Cisco M7 memory, Cisco M8 memory, UCS-MRX64G2RE1, UCSX-MRX32G1RE1, Cisco DDR5-4800 RDIMM, Cisco DDR5-6400 RDIMM.