Open Hardware Monitor

Open Hardware Monitor, a single open source application that lets you know the temperature sensors, fan speeds, voltages, load and clock speeds of a computer.
As the name suggests, this open source Hardware monitor application lets you keep a close eye on the temperature sensors, fan speeds, voltages, load and clock speeds of a computer. This application is compatible will all popular hardware monitoring chips found on the latest main-boards like: the ITE, Winbond and Fintek families. The program can easily monitor CPU temperature by reading the core temperature sensors of Intel and AMD processors. Along with the capability to display the sensors of ATI and Nvidia video cards as well as SMART hard drive temperature, this program supports features like: display the min, max and limits of censor value; sensor parameters are editable, plotting of temperature graphs, and so on.
Open Hardware Monitor runs on 32-bit and 64-bit Microsoft Windows operating systems without the need of installation.

The Open Hardware Monitor is a free open source application that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer. It supports most hardware monitoring chips found on todays mainboards like the ITE, Winbond and Fintek families. The CPU temperature can be monitored by reading the core temperature senors of Intel and AMD processors. The sensors of ATI and Nvidia video cards as well as SMART hard drive temperature can be displayed. The Open Hardware Monitor runs on 32-bit and 64-bit Microsoft Windows operating systems without installation.