I can't see all my RAM on Trusty Tahar 14.04.3 LTS

greg1954 Posts 1 Registration date Sunday February 7, 2016 Status Member Last seen February 7, 2016 - Feb 7, 2016 at 01:06 AM
I recently bought a box with a Trusty Tahar 14.04.3 32 bit O/S, 2 Gib ram (2 1 Gib sticks ) and since have upgraded to Trusty Tar Tar 64 bit and 8 Gib of RAM. The box has a BioStar A 681 MO BO with a AMD E 350 processor2X. The system is only showing 2.9 Gib of RAM. What is going on?
What do I need to do to fix this, or is it a case of hard ware conflict?