This video demonstrates how to review your servers physical data such as processor type, speed, memory and cache sizes. It also shows current memory and disk space usage and a variety of other information.
http://support.hostgator.com/articles/webhost-manager-whm/how-to-check-service-status-and-server-information-in-whm
Duration: 1:20
Publisher: HostGator
You can watch this video also at the source.