This 64GB (4x16GB) RAM is 100% compatible with Supermicro A+ Server 4042G-TRF.

Information on memory configuration: The following technical specifications should be considered in advance: ECC DIMM (with Error-Correction-Code) or RDIMM (Registered DIMM) RAM can be installed in the device. RDIMM memory is recommended when large memory capacities are to be achieved. The different memory technologies (ECC / RDIMM) must not be mixed. If a memory upgrade is to be made with the existing RAM, it must be checked which memory technology (ECC / RDIMM) is present. Memory slots without a processor must not be populated. When using a multiprocessor system, the memory slots should always be populated identically for each CPU. A higher memory clock of the memory module automatically adjusts to the memory clock specified by the system. This can especially occur with larger capacities.

Memory configuration for system performance: Optimal performance is achieved by using 4 or 8 identical memory modules per CPU. The memory should be populated identically (mirrored to the other CPU) per CPU.

Supported RAM speeds of AMD CPUs:

• Opteron 61xx: DDR3 ECC / RDIMM / LRDIMM 1333 MHz
• Opteron 62xx: DDR3 ECC / RDIMM / LRDIMM 1600 MHz
• Opteron 63xx: DDR3 ECC / RDIMM / LRDIMM 1866 MHz.