SUPERMICRO X7DGT-iNF-B 5000X/ESB2 DUAL LGA771 1333FSB FB-DIMM BULK MAX RAM 32GB DDR2-667 ECC FB-DIMM W/ 1 x PCIEx8 / 1 x INFINIBAND/ SATA RAID/ 2 x GIGABIT LAN/ USB2.0/ VIDEO SERVER BOARD
800 MHz DDR2 RAM shows half of memory speed on my machine - Super User
Need to upgrade DDR2 RAM on HP Desktop - Super User
A-Tech 8GB (4X 2GB) Max Memory RAM Kit for Dell OptiPlex 755, 745, 740, (MT, DT, SFF) - DDR2 667MHz PC2-5300 Non-ECC DIMM Upgrade at Amazon.com