This chapter covers the following subjects:

• Power Supplies— This section describes the device that transforms AC power from the wall outlet into DC power that your computer can use. It also describes the various form factors and voltage levels, and how to protect your power supply.

• Power Protection Types— In this section you’ll learn about devices that can protect your computer from over and under voltage issues. These include surge protectors, uninterruptible power supplies, and line conditioners.

• Troubleshooting Power Problems— This section demonstrates how to troubleshoot complete failure and intermittent power supply problems that you might encounter.

• System Cooling— This last section describes the various ways to cool your system, including fans and liquid cooling, and demonstrates how to monitor the system temperature.