russell@russell-MS-7204:~$ sudo lshw -C memory
  *-firmware              
       description: BIOS
       vendor: Phoenix Technologies, LTD
       physical id: 0
       version: 6.00 PG (04/27/2006)
       size: 128KiB
       capacity: 448KiB
       capabilities: isa pci pnp apm upgrade shadowing cdboot bootselect socketedrom edd int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer int10video acpi usb ls120boot zipboot biosbootspecification
  *-cache:0
       description: L1 cache
       physical id: a
       slot: Internal Cache
       size: 32KiB
       capacity: 32KiB
       capabilities: synchronous internal write-back
  *-cache:1
       description: L2 cache
       physical id: b
       slot: External Cache
       size: 1MiB
       capacity: 1MiB
       capabilities: synchronous external write-back
  *-memory
       description: System Memory
       physical id: 1a
       slot: System board or motherboard
       size: 2007MiB
     *-bank:0
          description: DIMM DDR Synchronous
          product: None
          vendor: None
          physical id: 0
          serial: None
          slot: A0
          size: 512MiB
          width: 64 bits
     *-bank:1
          description: DIMM [empty]
          product: None
          vendor: None
          physical id: 1
          serial: None
          slot: A1
     *-bank:2
          description: DIMM DDR Synchronous
          product: None
          vendor: None
          physical id: 2
          serial: None
          slot: A2
          size: 512MiB
          width: 64 bits
     *-bank:3
          description: DIMM [empty]
          product: None
          vendor: None
          physical id: 3
          serial: None
          slot: A3