You can download Everest Home Edition to see the temps of the CPU, the motherboard and the hard drives:
Everest Home Edition (freeware)
Everest Home Edition (the successor of AIDA32) is a system information and benchmarking tool with full hardware & software information available as freeware for the individual user. It comes with a built-in hardware database and physical information for CPU, motherboard, hard disks, optical drives, chipset and much more. The information can be displayed on-screen, printed, or saved as a report in HTML or text format. The built in diagnostics module can help you find potential problems, by higlighting them in the report and also includes links to manufacturers web sites, driver updates and more. An easy to use report wizard allows you to create detailed reports in the format of your choice.
After you get the program up, open the computer tree by clicking on the + to the left of the word "computer" and clicking on "sensor".
Go through the other catagories and see if it highlites a problem anywhere.