Hello!
I have built a machine with 2 AMD Epyc 7282 CPUs on a Supermicro H11DSi board. It has 8 RAM slots per socket. I have 8 sticks of 16GB DDR4-3200 registered ECC memory, that is 4 sticks per socket.
The problem I'm having is - when the system is fully assembled multiple benchmarks show just 20 GB/s of memory bandwidth, while the bandwidth specified on AMD's website says 85.3 GB/s per socket. So technically i should be getting around 160 GB/s. I tried playing around with the BIOS settings and managed to reach 60 GB/s with only 1 CPU with all 8 RAM modules installed. What can I do to reach the memory bandwidth specified by AMD?
I have built a machine with 2 AMD Epyc 7282 CPUs on a Supermicro H11DSi board. It has 8 RAM slots per socket. I have 8 sticks of 16GB DDR4-3200 registered ECC memory, that is 4 sticks per socket.
The problem I'm having is - when the system is fully assembled multiple benchmarks show just 20 GB/s of memory bandwidth, while the bandwidth specified on AMD's website says 85.3 GB/s per socket. So technically i should be getting around 160 GB/s. I tried playing around with the BIOS settings and managed to reach 60 GB/s with only 1 CPU with all 8 RAM modules installed. What can I do to reach the memory bandwidth specified by AMD?