8GB 2X4GB Memory Ram Compatible with Dell Precision Workstation T5500 Ecc R for Server Only by CMS B37

We guaranty this kit will work in your machine. 2pcs. 4GB 1333MHz ECC REGISTER Module Genuine CMS brand, CMS is one of the most trusted names in the Computer Memory industry and this product carries a Lifetime Warranty from CMS Max Memory: 24 GB ECC UDIMMs 48 GB Reg ECC RDIMMs 72 GB with Optional Riser Card & Reg ECC DIMMs Sockets: 6 Sockets 9 Sockets with Optional Riser Card Compatible with: Dell Precision Workstation T5500 DDR3 1333MHz speed requires Intel Xeon X5550 or higher processors. 1066MHz requires Xeon E5520 or higher, Xeon E5506 or lower support 800MHz only. Memory speed will be reduced as the number of modules installed increases. 1333MHz is supported with one DIMM per channel only using Xeon X55xx series. DDR3-1333 modules can automatically clock down to 1066MHz and 800MHz depending on module configuration or processor model installed. This system supports either Registered ECC or Unbuffered ECC memory. Mixing Registered ECC and Unbuffered ECC modules is not supported within this system. Due to chipset limitations, Unbuffered ECC DIMMs are limited to TWO Triple Channel Banks per processor on Intel Xeon 55xx series systems. Per Dell documentation, DIMMs within a memory channel need to be populated starting with the DIMMsockets farther from the processor first. DIMM slots 1, 2 and 3 must be populated before DIMM slots 4, 5 and 6. When installing quad-rank DIMMs with a single or dual-rank DIMM in the same channel, the quad-rank DIMMs must be populated farthest from the processor. To maximize available memory bandwidth, DIMMs should generally be spread across as many channels as possible before populating multiple DIMMs per channel. Single-CPU memory configurations (6 DIMM slots on MB):