Vengeance® LP 8GB (2x4GB) DDR3L DRAM 1600MHz C9 Memory Kit
CMS 8GB (2X4GB) DDR3 10600 1333MHZ Non ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex 780 Dt/Mt/Sff Desktops - A69 at Amazon.com
Tried upgrading RAM on a MacBook Pro 13 mid 2012, the 2x4 samsung ddr3 1600 MHz works as usual, but the newly (pictured) ddr3 4056mb ram does not work properly. I get