53• Mirroring mode needs the channel 1 & channel 2 with identicalDIMM. DIMM slot populations within a channel do not have to beidentical but the same DIMM slot location across channel 1 andchannel 2 must be the same. DIMM1A and DIMM2A should be thesame type, size and manufacturer. DIMM1B and DIMM2B memoryshould be the same type, size and manufacturer. DIMM1C andDIMM2C memory should be the same type, size and manufacturer.• Same rule is applied to the CPU2.Mirroring mode single processor configuration:Notes: 1. Place DIMMs in “X” location.2. DIMM population must correspond to the above tables.3. DIMM modules support 1 GB, 2 GB and 4 GB DIMMs.4. DIMM modules support 8 GB and 16 GB DIMMs (supportdepends on availability).5. Do not mix UDIMMs with RDIMMs.6. 3-DIMM per channel configuration is only available forsingle/dual rank RDIMM.Mirroring mode dual processor configuration:Channel 1DIMM slotsChannel 2DIMM slotsChannel 3DIMM slots NotesConfiguration 1C 1B 1A 2C 2B 2A 3C 3B 3AA X X NA NA NAB X X X X NA NA NAC X X X X X X NA NA NA SR, DR RDIMMSONLYCPU1 CPU2Config 1C 1B 1A 2C 2B 2A 3C 3B 3A 1C 1B 1A 2C 2B 2A 3C 3B 3AA X X NA NA NA NA NA NAB X X NA NA NA X X NA NA NAC X X X X NA NA NA X X NA NA NAD X X X X NA NA NA X X X X NA NA NA