I am trying to upgrade to 16GB of memory on my ASUS Essentio CM6850 Intel i7 2600 Sandy Bridge. I purchased the GSKill DDR3-1600 PC3-12800 4096MBx4 CL 9-9-9-24 1.5v. The computer would not boot (black screen) so I uninstalled the memory and put the old memory back in and it worked fine. At this point I realized that the installed memory was actually DDR3-1333... but I do not know if that is causing the issue or if I am doing something else wrong.
Would greatly appreciate any help from the forum and please let me know if I need to provide additional information.