Use FREE & FREEWARE software
Speccy: Advanced System Information Tool
Speccy is a free (currently beta) software by popular developer Piriform. The program is a computer hardware system information tool that analysis the hardware that is installed or connected to the computer. The software has both portable software and installer.
Speccy find detailed statistics on every hardware in a computer. Those are CPU, Motherboard, RAM, Graphics Cards, Hard Disks, Optical Drives, Audio and additionally the temperatures of your different components.
Download Link: http://www.piriform.com/download