Ok, so like my title suggests, I installed: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1866 Memory into my Z87 Pro Mobo. When I check PC Info, it only recognizes 8GB. I initially installed them in the 'gold' slots in my mobo per the instructions. Then I swapped positions, still 8GB. Then I put them in the 'black' slots, still 8GB. Then I ran Windows Memory Diagnostic, which ran but didnt show any report at the end. I am sure that they are installed correctly - they are both fully pushed and clamped in. Is there anything else this could be besides a faulty RAM stick? Any suggestions? Unfortunately, I no longer have the box they came in because system was running fine and I didnt notice it was only recognizing 8GB for about a week - so not sure I will be able to return them :/
Here is my system hardware: http://pcpartpicker.com/p/2Nre5
Here is a pic of inside my computer: http://i.imgur.com/X4dBr2x.jpg
Here is my system hardware: http://pcpartpicker.com/p/2Nre5
Here is a pic of inside my computer: http://i.imgur.com/X4dBr2x.jpg