14 Replies Latest reply on Aug 5, 2013 11:02 AM by ECBowen

    Windows 7 system only recognizing 16GB out of 32GB newly installed


      Hi all,


      I'm having some difficulties with a newly built Windows 7 system, particularly with the RAM. The problem is I have installed 32GB of memory (8 x 4GB), but Windows is only recognizing 16GB.


      My motherboard is an ASUS P9X79 WS. I have verified that this mobo supports well over 32GB of RAM, and I have updated the BIOS to the most recent update with the ASUS update utility.


      I am using Windows 7 Professional 64 bit. I understand that some versions of Win7 put a cap on memory, but I don't believe that is the case here.


      My memory is G.Skill Ripjaws Z Series 240-Pin DDR3 1600. All sticks are the same and are not mixed with other brands.


      I'm using the CPU-Z utility to examine my system, and it is reporting that 32GB of memory is installed. So it appears that only Windows is having trouble seeing it.


      I am attaching the full CPU-Z report here, in case that is helpful in diagnosing my problem:


      Any thoughts or suggestions as to what might be causing this would be greatly appreciated. Thanks!


      - Sean