Some computer hardware parameters change regularly while the computer is running. This includes the hardware temperature, clock speeds and voltages which should be monitored regularly to ensure that they are running in their allowed limits. It becomes even more important after building a pc and running it for the first time or when errors are encountered during operation.
It can for instance happen that a PC crashes regularly because of overheating issues. Open Hardware Monitor is a portable software program for the Windows operating system that displays various realtime information about the installed components and can be used as a hardware and temperature monitor.
The following hardware sensors and components are supported by the software program:
CPU core sensors
- Intel Core 2, Core i3/i5/i7
- AMD K8 (0Fh family), K10 (10h family)
Mainboard sensors
- ITE IT8716F, IT8718F, IT8720F, IT8726F
- Fintek F71862, F71869, F71882, F71889
- Winbond W83627DHG, W83627DHG-P, W83627EHF, W83627HF, W83627THF, W83667HG, W83667HG-B
GPU sensors
- Nvidia
- ATI
Hard disks
- S.M.A.R.T. sensors (optional)
Fan controllers
- T-Balancer bigNG (direct acces to USB-Serial driver, no T-Balancer Server needed)

The application lists the computer hardware and displays temperatures, voltages and other related information in its main interface. Both the current value and the max value are displayed which can give the user an indication if the hardware is running within its limits or if it could be the cause for (future) problems.
The portable nature of the software makes it an ideal companion for portable devices or repair disks. Open Hardware Monitor can be downloaded from the developer website. It is compatible with 32-bit and 64-bit editions of Windows and requires the Microsoft .net Framework. The source code of the program is also offered on the webpage.
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