Lshw -C memory

lshw -C memory
  *-firmware
       description: BIOS
       vendor: HPE
       physical id: 3
       version: U30
       date: 06/20/2018
       size: 64KiB
       capacity: 64MiB
       capabilities: pci pnp upgrade shadowing escd cdboot bootselect edd int13floppy360 int13floppy1200 int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification netboot uefi
  *-memory
       description: System Memory
       physical id: 13
       slot: System board or motherboard
       size: 512GiB
       capacity: 3TiB
       capabilities: ecc
       configuration: errordetection=multi-bit-ecc
     *-bank:0
          description: DIMM DDR4 Synchronous [empty]
          product: NOT AVAILABLE
          vendor: UNKNOWN
          physical id: 0
          slot: PROC 1 DIMM 1
          width: 64 bits
     *-bank:1
          description: DIMM DDR4 Synchronous [empty]
          product: NOT AVAILABLE
          vendor: UNKNOWN
          physical id: 1
          slot: PROC 1 DIMM 2
          width: 64 bits
     *-bank:2
          description: DIMM DDR4 Synchronous Registered (Buffered) 2666 MHz (0.4 ns)
          product: 840758-091
          vendor: HPE
          physical id: 2
          slot: PROC 1 DIMM 3
          size: 32GiB
          width: 64 bits
          clock: 2666MHz (0.4ns)
.../....

See also

• lshw, dmidecode
• Memory: memory pages, RAM, virsh Memory Commands, OOM, meminfo, vmstat, NAND, DDR, lsmem, /dev/shm, /proc/meminfo, sar -r, IOMMU, pmem, Memory management, Garbage collector, THP, Linux Huge Page TLB