Computer Power Sources

A laptop can be powered in two ways: a charged battery or an A/C cord. The A/C cord plugs in at an outlet and both powers the laptop and charges the battery. Even a fully charged battery won't...

When people decide to upgrade computers they often forget to look at something as basic as the size of the power supply. They will examine the motherboard, the RAM and the graphics cards. In...

Your computer's power supply is an essential component of your PC. Your power supply is what regulates and distributes power to all the different parts of your computer. It draws upon power from a...

Figuring out what is wrong with your computer can be a real headache. One of the most difficult to diagnose problem areas for some computers is the power supply unit (PSU). An insufficient power...

With any device that uses electricity, you can normally calculate the amount of power the given device uses by looking at information provided on the unit's power supply box. With computers...

IBM-branded Thinkpads have an on-board battery to provide power to the laptop when a power source is not available. This feature makes the laptop computer a mobile device. After repeated charging...

You can set your desktop computer or laptop to automatically activate the power supply if you want the computer system to turn on at a specific time each day. This means that you will not need to...

When working on computers, many times a machine's failure to work or work properly is due to a failing (or failed) power supply unit. Luckily, it is easy to find out if a PSU is dead. This little...

Connecting a power source, also known as a power supply, to a computer can be a seemingly complicated task when first approached. However, this procedure is made exceedingly quick and easy given...

Your computer's power supply unit (PSU) routes electricity from the power cord to the various parts of the computer. It is located at the upper left corner of the desktop tower. While power supply...

Traveling often necessitates working in places where it's not possible to plug into an electrical outlet for power, so the amount of work you can do on the road depends on how quickly your battery...

Most laptop computers use an external power supply for recharging the battery and operating the computer from line voltage. When connected, the plug into the computer can be damaged if struck or...

The main function of a power supply is to provide the motherboard and various other components with electricity; so it is both necessary and hazardous. Use caution and avoid electric shock. Power...

A computer power supply provides the electricity and power to computer components that make a computer run. A power supply, which screws into a computer case, has an AC power connection on the...

Installing computer hardware is a daunting task, especially for those inexperienced with the intricacies of the interior of their computers. However intimidating it may be, the task of setting up...

ATX power supplies have been the standard for computer desktops since 1995. There is a newcomer, called EPS, that's challenging the rule of ATX power supplies.

Electricity is the life blood of a computer. Every computer has a power supply to provide electricity to all the components. The power supply takes regular household current and modulates it into...

Installing hardware into your computer can appear to be an intimidating endeavor. However, this is not always the case. Like most computer hardware, you can install a power supply yourself instead...

If you want to get the most use out of your laptop battery, you should let it drain as much as possible before you recharge it. However, the only way to drain your laptop battery is to use your...

If your laptop battery isn't performing well, i.e., not retaining a charge and dying out quickly, you may be able to reset it. Resetting your laptop battery depends on the type of battery you...

There are all sorts of tricks to get your laptop computer to run longer on battery power before needing a recharge--from dimming the screen to turning off the wireless antenna to refraining from...

The IBM Thinkpad is the IBM version of a laptop. Although the company mainly focuses on large and small business products, it is still possible to purchase the laptop. However, like other...

Computer power cables are a rather important part of computers, as they provide a connection between the power source and the computer itself. There are many kinds of computer power cables.

The Dimension E310 a desk top computer produced by Dell as a member of their Dimension E series, the precursors to the Inspiron line. The power supply unit (PSU) converts the electricity from your...

In computer terms UPS stands for uninterruptible power supply. The purpose of a UPS is to keep your computer running when the power goes out. This gives you time to save anything you're working on...

When the warranty expires on big-ticket items, things start to go wrong all at once, and laptop computers are no different. The DC jack is your main source of power, especially when charging your...

When using a device that requires electricity, the first step is often to plug it in. Different types of electrical devices require different plugs that meet the electrical needs of the device....

A battery backup, or an uninterruptible power supply (UPS) can be a tricky thing to purchase. There are a lot of factors to consider, namely: volt-amp (VA) rating, full-load wattage, run-time at...

Testing an ATX power supply is a useful diagnostic tool when attempting to ascertain a problem that is preventing a PC from posting. Many computer failures are symptomatic of a failed graphics...

Your computer's power supply is the heart of your computer system. The power supply generates a lot of heat since it powers all components of your system, from your hard drive to your USB...

When working on your computer amid a power failure, you lose any unsaved data. Avoid this problem with an emergency battery backup called an uninterrupted power supply (UPS), which will give you...

Without proper power, a computer may lag and some components may not work. The computer may even run the risk of overheating if the system lacks enough power to run the cooling system or fan. ATX...

A power surge can seriously harm your computer. Fortunately, the computer's power supply is built to take the brunt of any power fluctuations. If you find that your system no longer powers up...

All UPS systems have three main components: the rectifier, the battery and the inverter. The rectifier converts AC power to DC power so that the battery can store it. The battery stores the...

Since the widespread acceptance of the SATA specification release in 2003 there has been a growing interest in the difference between ATA and SATA power supplies. A power supply is not...

Surge protection is an often overlooked but vital component for maintaining your desktop or laptop computer. Computers are sensitive devices, and they are not able to withstand spikes in...

Emachine was a company that made inexpensive computers; it was purchased by Gateway in 2004. Generic inexpensive computers are also referred to as emachines. There have been many problems with...

Although the USB port is commonplace on all new computers, a system that is dated by a few years may not have a USB port. Before the USB port, computers came with serial ports. These ports are...

Desktop computers get their power from a built-in power supply. When you look at the back of your computer notice the power cord; this plugs directly into the power supply which is located inside...

Whenever you start dealing with electrical outlets, you want to take a few precautions, and computers are no exception. Their internal power supplies use hundreds of watts and are set to use more...

Universal Serial Bus, or USB for short, is a computer standard that is used for connecting other devices to a personal computing device, such as a computer, a tablet PC or a personal digital...

Laptop batteries are complex power supplies that include on-board circuitry to control the flow of electricity and manage recharging safely. Most laptop batteries contain several lithium-ion cells...

A computer power source converts alternating current (AC) to direct current (DC) and provides a secure ground in case of electrostatic shock. You should test a power supply before plugging it into...

Laptop computers are one of the many items that we use that depends on a rechargeable battery to keep it up and running. When your laptop fails to stay charged or to charge at all, it is time to...

An Uninterruptible Power Supply, or UPS, is a backup power device used to prevent electrical power outages, surges and other electrical issues from adversely affecting a computer. Power issues can...

A laptop battery's capacity and charging time decreases as it gets older, but a newer battery or a well-maintained battery will have a relatively steady charge time.

The laptop power supply is a crucial component of mobile computing, and proper care can help to extend the life of the power supply. The laptop power supply is important for its two main...

The form factor of a power supply is a description of its size and connection to the motherboard. Size is important; the power supply must fit into a specially designed area in the case and leave...

When you purchase a new laptop computer, one of the included accessories is a power adapter. A laptop's power adapter serves two basic purposes: supplying power to the computer's internal parts...