The most delicate parts of your PC are among the hardest to keep your eye onùthe CPU and motherboard. A failed CPU fan or power supply fan can rapidly overheat delicate chips and fry them. To avoid this, download MotherBoard Monitor from members.brabant.chello.nl/~a.vankaam/mbm (author Alex van Kaam's site) or grab it off our cover CD. This handy program reads temperature and fan RPM data collected by your system's BIOS, displays it in Windows' system tray, and alerts you when there's trouble.