Are you sure you have your system set up properly? I thought I did until two days ago I found out that my 2133 MHz memory actually had been running at standard 1333 MHz for over a year.
Obviously I somehow missed the configuration the last time when I upgraded the system BIOS. And too bad I didn’t aware of it at all.
The problem was spotted by a free utility downloaded from UserBenchmark, which gathers performances of key components of computers and compares the results to all others who have the same hardware.
Surely it couldn’t cover every hardware aspect of a computer but it does help quickly identify potential issues and provides some good ideas where future upgrades should go.