I just upgraded from two 2GB RAM cards to two 8GB ram cards.
I've read that my laptop (T420) officially supports 8GB but can work with up to 16GB.
free -mh which returns:
total used free shared buff/cache available Mem: 7.7G 1.0G 5.3G 143M 1.4G 6.2G Swap: 3.9G 0B 3.9G
I want to figure out if I installed them wrong or if it's a software configuration problem.
Is there a series of commands I could run to check that both ram cards are seen?