Hardinfo - Hardinfo is a system information and benchmark tool for Linux.
CPU-Z - CPU-Z is a freeware that gathers information on some of the main devices of your system : Processor name and number, codename, process, package, cache levels.
Hardware Lister - lshw (Hardware Lister) is a small tool to provide detailed information on the hardware...
Speccy - Speccy - find the details of your computer's specs. Great for spotting issues or finding compatible upgrades. Download the latest version free.
hddtemp - hddtemp is a small utility (daemonizable) that gives you the temperature of your hard drive by...
AIDA64 - AIDA64 is a system information, diagnostics and benchmarking solution for Windows PC.