x58 motherboard 3 dim slots not functioning faulty ram or board?

the blue DIMM slot and lower rank DIMM in the black DIMM slots Total DIM M capacity for 2nd Gen non-”M” and non-”L” CPUs cannot

Figure 2 shows the DIMM slot configuration in HPE ProLiant BL460c Gen10 server blades, which have two sockets and 16 DIMM slots The configuration is similar to

dimensioning a slot Figure 2 shows the DIMM slot configuration in HPE ProLiant BL460c Gen10 server blades, which have two sockets and 16 DIMM slots The configuration is similar to

dimensi slot General DIMM slot population guidelines · Install DIMMs only if the corresponding processor is installed · When two processors are installed, balance the DIMMs