CMS 8GB (4X2GB) DDR2 5300 667MHZ ECC Fully BUFFERED DIMM Memory Ram Compatible with IBM System X3650 (7979), X3650 (1914) Pc5300 Fully Buff for Server Only - B119 at Amazon.com
CMS 8GB (2X4GB) DDR2 5300 667MHZ ECC Fully BUFFERED DIMM Memory Ram Compatible with HP/Compaq Workstation Xw8600 Series Ddr2-Pc5300 Fb for Server Only - B54 at Amazon.com
Komputerbay 2GB DDR2 667MHz PC2-5300 PC2-5400 DDR2 667 (240 PIN) DIMM Desktop Memory CL 5 - Komputer Bay
Memory Master 4 GB (2 x 2GB) DDR2 800 MHz PC2-6400 Desktop DIMM Memory Modules MMD4096KD2-800 at Amazon.com