CMS 8GB (4X2GB) DDR2 6400 800MHZ NON ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex 745, 745C Series Desktop - A92 - Walmart.com
CMS 8GB (4X2GB) DDR2 5300 667MHZ ECC REGISTERED DIMM Memory Ram Upgrade Compatible with Dell® Dell® Poweredge R805 Server Ddr2 5300 For Server Only - B115 System Specific Memory - Newegg.com