A strong, reliable power supply is the heart of a strong, reliable PC. Here's how to replace or install a new power supply in your computer.

Can't reach the power button on your desktop? Or do you just want to avoid having to reach down to press it? This USB gadget may be the solution you need.

Building a PC is simple until you get to the microscopic PC case power and reset buttons. Figure out which way round to connect these tiny front panel switches.