Comment 3 for bug 1878154

$ sudo LC_ALL=C lshw -C memory
  *-firmware
       description: BIOS
       vendor: HP
       physical id: 1
       version: Q85 Ver. 01.01.00
       date: 08/19/2017
       size: 64KiB
       capacity: 15MiB
       capabilities: pci pcmcia upgrade shadowing cdboot bootselect edd int5printscreen int9keyboard int14serial int17printer acpi usb smartbattery biosbootspecification netboot uefi
  *-memory
       description: System Memory
       physical id: 7
       slot: System board or motherboard
       size: 4GiB
     *-bank:0
          description: SODIMM DDR4 Synchronous Unbuffered (Unregistered) 2400 MHz (0.4 ns)
          product: HMA851S6AFR6N-UH
          vendor: Hynix/Hyundai
          physical id: 0
          serial: 2A7E9431
          slot: Bottom-Slot 1(left)
          size: 4GiB
          width: 64 bits
          clock: 2400MHz (0.4ns)
     *-bank:1
          description: [empty]
          physical id: 1
          slot: Bottom-Slot 2(right)
  *-cache:0
       description: L1 cache
       physical id: d
       slot: L1 Cache
       size: 256KiB
       capacity: 256KiB
       capabilities: synchronous internal write-back unified
       configuration: level=1