Fujitsu PRIMERGY Server Memory: RX, TX, CX & GX by Model and Part Number

Memory upgrades for Fujitsu PRIMERGY rack, tower, multi-node and GPU servers, from the S7 generation to M8. Each listing is matched to one PRIMERGY model and one memory type, using the speed, module sizes and capacities Fujitsu specifies for that model. This page explains how to identify your PRIMERGY server and which memory it takes. To go straight to the products, type your PRIMERGY model or Fujitsu part number into the search bar at the top of the page, or browse all Fujitsu PRIMERGY memory.

Find your PRIMERGY model first

The model name (for example PRIMERGY RX2540 M5 or TX300 S7) is on the front panel, the system ID card and the iRMC web interface. The letters give the form: RX is a rack server, TX a tower server, CX a node for the CX400 multi-node chassis, and GX a GPU server. The suffix gives the generation: M8 and M7 use DDR5, M6 and M5 use DDR4, S8 and S7 use DDR3. The single-socket RX1330, TX1330 and TX1320 M6 use DDR5 ECC UDIMM, and the AMD RX2450 M2 and RX1440 M2 use DDR5. Memory that Fujitsu supplied carries a part number starting S26361-F (older models) or PY-ME (newer models).

Shop Fujitsu PRIMERGY memory

Generation Models Memory Listings
PRIMERGY M8
Intel Xeon 6		 RX2530 M8, RX2540 M8, RX4770 M8 DDR5-6400 · RDIMM 3
PRIMERGY M7
4th / 5th Gen Intel Xeon Scalable		 RX2530 M7, RX2540 M7, TX2550 M7, RX4770 M7, RX8770 M7, CX2550 M7, CX2560 M7, GX2560 M7 DDR5-5600 or DDR5-4800 · RDIMM 8
PRIMERGY M6 single-socket
Intel Xeon E-2400 / Xeon 6300P		 RX1330 M6, TX1330 M6, TX1320 M6 DDR5-4800 · ECC UDIMM 3
PRIMERGY M6
3rd Gen Intel Xeon Scalable		 RX2530 M6, RX2540 M6, RX4770 M6, CX2550 M6, CX2560 M6, GX2570 M6 DDR4-3200 · RDIMM, LRDIMM 11
PRIMERGY M5
2nd Gen Intel Xeon Scalable		 RX2530 M5, RX2540 M5, RX2520 M5, TX2550 M5, RX4770 M5, CX2550 M5, CX2560 M5 DDR4-2933 · RDIMM, LRDIMM 13
PRIMERGY M5 single-socket
Intel Xeon E-2300		 RX1330 M5, TX1330 M5, TX1320 M5, TX1310 M5 DDR4-3200 · ECC UDIMM 4
PRIMERGY AMD EPYC
AMD EPYC 9004 / 9005 and 7002 / 7003		 RX2450 M2, RX1440 M2, RX2450 M1 DDR5-6400 / 5600 RDIMM; DDR4-3200 RDIMM, LRDIMM 4
PRIMERGY S8
Intel Xeon E5-2600 v2		 TX300 S8, RX300 S8, RX200 S8 DDR3-1866 · RDIMM, LRDIMM 6
PRIMERGY S7
Intel Xeon E5-2600		 TX300 S7, RX300 S7, RX200 S7 DDR3-1600 RDIMM, DDR3L-1333 LRDIMM 6
All Fujitsu PRIMERGY memory Every PRIMERGY listing DDR5, DDR4, DDR3 · RDIMM, LRDIMM, ECC UDIMM 58

DDR4 and DDR3 dual-socket models have two listings, one for RDIMM and one for LRDIMM, and each listing links to the other. DDR5 models use RDIMMs only.

Which memory does my PRIMERGY server take?

  • M8 (Intel Xeon 6): DDR5-6400 RDIMM 16GB to 128GB; 6400 MT/s at one DIMM per channel, 5200 at two. RX2530 M8 and RX2540 M8 take up to 4TB in 32 slots with 128GB modules.
  • M7 (4th and 5th Gen Intel Xeon Scalable): DDR5-5600 RDIMM on RX2530, RX2540 and TX2550 M7; DDR5-4800 RDIMM on RX4770, RX8770, CX2550, CX2560 and GX2560 M7. 16GB to 64GB, plus 96GB on RX2530 and RX2540 M7.
  • M6 single-socket (RX1330, TX1330, TX1320 with Xeon E-2400 or Xeon 6300P): DDR5-4800 ECC UDIMM 16GB and 32GB, up to 128GB in 4 slots.
  • RX2450 M2 and RX1440 M2 (AMD EPYC 9004 / 9005): DDR5 RDIMM 16GB to 128GB; memory runs at 4800 MT/s with EPYC 9004 and up to 6000 MT/s with EPYC 9005.
  • M6 (3rd Gen Intel Xeon Scalable): DDR4-3200 RDIMM 8GB to 64GB or LRDIMM 64GB and 128GB. RX2530 M6 and RX2540 M6 take up to 4TB in 32 slots.
  • M5 (2nd Gen Intel Xeon Scalable): DDR4-2933 RDIMM 8GB to 64GB or LRDIMM 64GB and 128GB. RX2530 M5 and RX2540 M5 take up to 3TB in 24 slots; the 128GB LRDIMM needs an M-series processor.
  • M5 single-socket (RX1330, TX1330, TX1320, TX1310 with Xeon E-2300): DDR4-3200 ECC UDIMM 8GB to 32GB, up to 128GB in 4 slots.
  • RX2450 M1 (AMD EPYC 7002 / 7003): DDR4-3200 RDIMM 16GB to 64GB or LRDIMM 64GB and 128GB, up to 4TB in 32 slots.
  • S8 (Xeon E5-2600 v2): DDR3-1866 RDIMM 8GB and 16GB, or 32GB DDR3-1866 LRDIMM, in 24 slots.
  • S7 (Xeon E5-2600): DDR3-1600 RDIMM 8GB and 16GB, or 32GB DDR3L-1333 LRDIMM, in 24 slots.

Rules that apply across PRIMERGY servers

  • RDIMM or LRDIMM, never both. On DDR4 and DDR3 servers, Fujitsu does not allow registered and load-reduced modules in the same server. Match what is installed, or replace every module.
  • One module type per server. Fujitsu also does not mix x4 and x8 RDIMMs. Using one module size throughout avoids both problems.
  • The processor sets the speed. A DDR4-2933 or DDR4-3200 module runs at the speed the installed Xeon supports, for example 2666 MT/s with Gold 5200 or 2933 MT/s with Gold 5300.
  • Single-socket Intel models take ECC UDIMM only. RDIMMs and LRDIMMs will not work in the RX1330, TX1330, TX1320 or TX1310 (DDR4 on M5, DDR5 on M6).
  • Not offered. 3DS RDIMMs (128GB 4Rx4 and 256GB DDR5), MRDIMMs and Intel Optane persistent memory.
  • DDR3 voltage. 1.5V is Fujitsu's default memory voltage for maximum speed on S7 and S8 servers; low-voltage LRDIMMs run at 1.35V.

Ordering by Fujitsu part number

If you are replacing or adding to Fujitsu-supplied memory, these Fujitsu options (S26361-F part numbers on older servers, PY-ME order codes on newer ones) match the specifications of NEMIX RAM modules. Searching any of them in the search bar also finds the right listings.

Don't see your PRIMERGY model?

NEMIX RAM lists the M8, M7, M6, M5, S8 and S7 models above today. For other PRIMERGY servers, including M4 and older blade and multi-node models, send us your model name and we will confirm a compatible module.

Why NEMIX RAM for Fujitsu PRIMERGY memory

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.

Data centers and fleet refreshes

Purchase orders, net terms and volume pricing are available for data center refreshes and PRIMERGY fleet upgrades. Request a quote, or send us your PRIMERGY model and we will confirm the right module before you order.