The Open Hardware Monitor is a free open source application that monitors temperature sensors, fan speeds, voltages, load and clock speeds of the hardware of a computer. It runs on 32-bit and 64-bit Microsoft Windows operating systems using the Microsoft .NET Framework. Linux systems with Mono are supported as well, although the available sensors are (currently) very limited.

Changelog:
Fixed support for more than one Nvidia GPU on x64 systems.

Program Information Category: Tools and Utilities Type: Free Version: 0.1.23.2 Beta Size: 211KB Works on: Windows Product page: here