Maximum configurations require a 64-bit operating system., s., 240PIN DDR2 DIMM , ECC REGISTERED Upgrade your Super Micro X7DCT with guaranteed compatible Super Micro RAM memory. All Super Micro X7DCT Memory Upgrades are backed by a lifetime warranty SUPERMICRO Manufacturing numbers MBD-X7DCL-i-B; MBD-X7DCL-i-O, MBD-X7DCT-B, MBD-X7DCT-10G-B; MBD-X7DCT-10G-O, MBD-X7DCT-3-B; MBD-X7DCT-3-O, MBD-X7DCT-3F-B; MBD-X7DCT-3F-O 8GB Total memory using 2pc of 4GB PC2-5300 DDR2-667 Registered ECC DIMM. CMS 8GB (2X4GB) Memory Ram Compatible with ASRock Motherboard B365M Server Memory 8GB (2x4GB) Memory RAM 4 Dell PowerEdge 1800 DDR2-PC3200 FOR SERVERS DDR2 ECC Registered Memory MODULES MUST BE ORDERED AND INSTALLED IN PAIRS for Dual Channel mode. Find many great new & used options and get the best deals for 8GB Kit (2x4GB Module) RAM Memory SuperMicro SUPER X7DCT (DDR2-4200 - Reg) at the best online prices at Max Memory 48GB Sockets 6 (3 banks of 2) Compatible with Supermicro X7DCL-i, X7DCT, X7DCT-10G, X7DCT-3, X7DCT-3FMotherboards. CMS brand, CMS is one of the most trusted names in the Computer Memory industry and this product carries a Lifetime Warranty from CMS.