16GB KIT (4 x 4GB) for HP-Compaq Workstation Series xw6400 xw6600 xw8400 xw8600. DIMM DDR2 ECC Fully Buffered PC2-5300F 667MHz Server Ram Memory. Genuine A-Tech Brand. at Amazon.com
Desktop PC, HP Xw6400 Workstation, Intel Xeon 5140 2.33GHz Processor, 4GB RAM, DVD-RW, Windows XP Professional License Sticker, No HDD, No Power/VGA Cables. Appears To Function. [93399+117]
CMS 16GB (4X4GB) DDR2 5300 667MHZ ECC Fully BUFFERED DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Xw6400 Ddr2 Pc5300 Fully Buff for Server Only - B104 at Amazon.com
HP XW6400 Workstation Motherboard 436925-001 + Xeon 5110 1.6GHz CPU + 4GB RAM - The620Guy.com
Desktop, HP Xw6400 Workstation, 2x Intel Xeon, 4GB RAM, DVD-RW, Win XP Sticker (Verification Req.), No HDD, No VGA/Power /Keyboard/Mouse Cables, Unit Powers On, No Display, Sold As Is, Salvage. [94972+69]
HP XW6400 Workstation Two Xeon Dual Core's 2.33GHz 2GB 80GB Avid [XW6400] - $999.99 : Professional Multi Monitor Workstations, Graphics Card Experts