Guru3D - Guru of 3D: PC Hardware Reviews and tests
SpeedFan - Hardware monitor for Windows that can access digital temperature sensors located on several 2-wire SMBus Serial Bus. Can access voltages and fan speeds and control fan speeds. Includes technical articles and docs.
PowerStrip - PowerStrip provides advanced, multi-monitor, programmable hardware support to a wide range of...
Open Hardware Monitor - Monitors temperature sensors, fan speeds, voltages, load and clock speeds, with optional graph.
EVGA Precision - This program allows you to fine tune your EVGA graphics card for the maximum performance possible...
smcFanControl - [Download] smcFanControl 2.