CMS 8GB (2X4GB) DDR3 10600 1333MHZ Non ECC DIMM Memory Ram Upgrade Compatible with HP/Compaq® Compaq 8100 Elite Small Form Factor Business Pc - A69 at Amazon.com
Crucial 8GB Single DDR3/DDR3L 1600 MT/s (PC3-12800) DR x8 ECC UDIMM 240-Pin Memory - CT102472BD160B at Amazon.com