power supplies library

The performance of your computer relates to its supply of power. Learn how PC power supplies, computer batteries and surge protectors also play an important role in computer upkeep.

Featured Article: How PC Power Supplies Work

The power supply in your PC provides all of the different voltages your computer needs to operate properly. Find out how it puts the pieces together and troubleshoot your power supply problems. See more »

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How does a computers uninterruptible power supply UPS work?

A computer can tolerate slight differences in power, but a significant deviation will cause the computer's power supply to fail. A UPS protects a computer against four different power problems.

How PC Power Supplies Work

The power supply in your PC provides all of the different voltages your computer needs to operate properly. Find out how it puts the pieces together and troubleshoot your power supply problems.

What causes laptop batteries to overheat?

Dell, Apple and the U.S. Consumer Product Safety Commission announced that several lithium-ion laptop batteries could short-circuit, causing an explosion or a fire. Find out why.

Why does my computer need a battery?

The RTC chip, or Real Time Clock, does more than keep your computer set to the correct date and time. Without it, you wouldn�t even be able to boot up.