This 32GB (4x8GB) RAM is 100% compatible with Supermicro A+ Server 4042G-TRF.

Information on memory configuration: The maximum capacity of 1024GB in total or 256GB per CPU can be achieved using RDIMM or LRDIMM memory. With UDIMM ECC memory, the maximum is 64GB per CPU or 256GB in total. Memory slots that do not have a processor present must not be populated. ECC DIMM, Registered DIMM, and Load Reduced LRDIMM memory modules must not be mixed. Therefore, when upgrading, you should know which memory is already installed or upgrade completely to RDIMM. Our memory team is happy to assist you in choosing the right RAM and configuring your server.

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