lshw -class memory
  *-firmware
       description: BIOS
       vendor: Dell Inc.
       physical id: 0
       version: A03
       date: 05/30/2008
       size: 64KiB
       capacity: 960KiB
       capabilities: pci pnp apm upgrade shadowing escd cdboot bootselect edd int13floppytoshiba int13floppy720 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification netboot
  *-cache:0
       description: L1 cache
       physical id: 700
       size: 32KiB
       capacity: 32KiB
       capabilities: internal write-back data
  *-cache:1
       description: L2 cache
       physical id: 701
       size: 12MiB
       capacity: 12MiB
       capabilities: internal varies unified
  *-cache:0
       description: L1 cache
       physical id: 702
       size: 32KiB
       capacity: 32KiB
       capabilities: internal write-back data
  *-cache:1
       description: L2 cache
       physical id: 703
       size: 12MiB
       capacity: 12MiB
       capabilities: internal varies unified
  *-memory
       description: System Memory
       physical id: 1000
       slot: System board or motherboard
       size: 24GiB
     *-bank:0
          description: FB-DIMM DDR2 FB-DIMM Synchronous 667 MHz (1.5 ns)
          product: NT2GT72U8PD1BN-3C
          vendor: Nanya Technology
          physical id: 0
          serial: 10E61E5D
          slot: DIMM 1
          size: 2GiB
          width: 64 bits
          clock: 667MHz (1.5ns)
     *-bank:1
          description: FB-DIMM DDR2 FB-DIMM Synchronous 667 MHz (1.5 ns)
          product: NT2GT72U8PD1BN-3C
          vendor: Nanya Technology
          physical id: 1
          serial: 35E51E5D
          slot: DIMM 2
          size: 2GiB
          width: 64 bits
          clock: 667MHz (1.5ns)
     *-bank:2
          description: FB-DIMM DDR2 FB-DIMM Synchronous 667 MHz (1.5 ns)
          product: NT2GT72U8PD1BN-3C
          vendor: Nanya Technology
          physical id: 2
          serial: 47E51E5B
          slot: DIMM 3
          size: 2GiB
          width: 64 bits
          clock: 667MHz (1.5ns)
     *-bank:3
          description: FB-DIMM DDR2 FB-DIMM Synchronous 667 MHz (1.5 ns)
          product: NT2GT72U8PD1BN-3C
          vendor: Nanya Technology
          physical id: 3
          serial: 628A1E5E
          slot: DIMM 4
          size: 2GiB
          width: 64 bits
          clock: 667MHz (1.5ns)
     *-bank:4
          description: FB-DIMM DDR2 FB-DIMM Synchronous 667 MHz (1.5 ns)
          product: 36HF51272FZ667H1D6
          vendor: Micron Technology
          physical id: 4
          serial: DC79A59F
          slot: DIMM 5
          size: 4GiB
          width: 64 bits
          clock: 667MHz (1.5ns)
     *-bank:5
          description: FB-DIMM DDR2 FB-DIMM Synchronous 667 MHz (1.5 ns)
          product: 36HF51272FZ667H1D6
          vendor: Micron Technology
          physical id: 5
          serial: DC79A5A0
          slot: DIMM 6
          size: 4GiB
          width: 64 bits
          clock: 667MHz (1.5ns)
     *-bank:6
          description: FB-DIMM DDR2 FB-DIMM Synchronous 667 MHz (1.5 ns)
          product: 36HF51272FZ667H1D6
          vendor: Micron Technology
          physical id: 6
          serial: DC79A5A3
          slot: DIMM 7
          size: 4GiB
          width: 64 bits
          clock: 667MHz (1.5ns)
     *-bank:7
          description: FB-DIMM DDR2 FB-DIMM Synchronous 667 MHz (1.5 ns)
          product: 36HF51272FZ667H1D6
          vendor: Micron Technology
          physical id: 7
          serial: DC79A59E
          slot: DIMM 8
          size: 4GiB
          width: 64 bits
          clock: 667MHz (1.5ns)