PNY Performance 8GB DDR4 DRAM 2666MHz (PC4-21300) CL19 (Compatible with 2400MHz or 2133MHz) 1.2V Notebook/Laptop (SODIMM) Computer Memory RAM – MN8GSD42666 at Amazon.com
No input signal on monitor after adding another black 8GB Ram to second slot. It has the same mhz, latency etc. Why it doesn't work? PC works again after removing it. :