Hi, everyone! I intended to boost up my PC a little so I bought 8Gb of RAM (2x4Gb). My motherboard supports 4 x DIMMs of DDR3, up to a maximum of 16Gb of RAM, from 1333 to 2200(OC) Mhz. I chose Corsair's Vengeance DDR3 1600Ghz model (2x4Gb), reference: CMZ8GX3M2A1600C9. I did consult my motherboard's manual and respected the specs. Unfortunately, I did not consult the QVL. The above mentioned model isn't included. The problem is that the BIOS does not recognize the 8Gb and it freezes. When I install just one of the modules, it recognizes the 4Gb, starts to boot and then shows a BSD (Blue Screen of Death). When I change back to my current RAM modules (mentioned below), everything runs smooth. Does anyone knows of similar RAM problems and its solution? My PC specs are: Mother Board - ASUS P7H55/USB3 - Socket 1156; Processor - Intel I5 650 @ 3.20Ghz; Current RAM - 4GB (2x2Gb) Corsair XMS3 - reference TW3X4G1333C9A G; Hard Drive - 250Gb Samsung SSD 840 Series; Graphics card - ATI Radeon HD6870; Power Supply - Nox Urano 600 Watts. Thanks for your time.