Used Server parts:
HP Proliant DL380 G4 Server Memory 512 MB DDR2 Memory - 345112-051

Specifications

    * Density: 512MB
    * Organization
      -64M words x 72 bits, 1 rank
    * Mounting 9 pieces of 512M bits DDR2 SDRAM sealed in FBGA
    * Package: 240-pin socket type dual in line memory module (DIMM)
      -PCB height: 30.0mm
      -Lead pitch: 1.0mm
      -Lead-free (RoHS compliant)
    * Power supply: VDD = 1.8V +/- 0.1V
    * Data rate: 667Mbps/533Mbps/400Mbps (max.)
    * Four internal banks for concurrent operation (components)
    * Interface: SSTL_18
    * Burst lengths (BL): 4, 8
    * /CAS Latency (CL): 3, 4, 5
    * Precharge: auto precharge option for each burst access
    * Refresh: auto-refresh, self-refresh
    * Refresh cycles: 8192 cycles/64ms
      -Average refresh period
       7.8 µs at 0'C <= TC <= +85'C
       3.9 µs at +85'C < TC <= +95'C
    * Operating case temperature range
      -TC = 0'C to +95'C
  
Application    Server Memory
Server Model    HP Proliant
Compatibility    HP Proliant Servers
Manufacturer    Hewlet Packard

Compaq/HP Product:
HP OPTION KIT FOR ML370 G4 / DL380 G4 / DL360 G4 / ML570 G3/G4 / DL580 G3/G4
ALSO COMPATIBLE WITH HP WORKSTATIONS XW6200 / XW8200