A-Tech 8GB KIT (2 x 4GB) for Asus M4 Motherboard Series M4A78-EM/1394, M4A78-HTPC, M4A78-HTPC/RC DIMM DDR2 ECC Unbuffered PC2-5300 667MHz Server RAM Memory at Amazon.com
HP 615863-001 2GB, DDR3-667MHz Memory Module at Amazon.com
Kingston ValueRAM 8GB DDR2 667MHz Reg with Parity DIMM Desktop Server Memory at Amazon.com