Choosing a power supply is one of the most important steps when building a customized computer. Since the building of customized computers have risen in popularity due largely to the gaming community as well as computer enthusiasts, it is important to understand how to choose a power supply for the ensuing stroke of genius that is created as a portal to the Internet. Without the heartbeat of electricity, and a steady stream that can handle the power built into a custom computer, even the best designed customized computers fall into the land of permanent rest.
Linear and switching power supplies are options as well as the uninterrupted power supply variety. The choice comes down to what you need for your particular computer and the amount of voltage necessary to run your new source of pride and joy.
Linear power supply is seldom the answer for customized computer. These types of energy supply require very large transformers and are extremely heavy. Unless you are a body building champion with a need to prove yourself, linear power is probably not what you want at approximately one pound per ampere. Add to that the necessity of large heat sinks to dissipate energy loss and an efficiency of about 50%, linear power options are simply too cumbersome and inefficient to meet the needs of most home computer building purposes.
Most enthusiasts choose something in the switching power supplies category since they want a computer-not a weight lifting championship. There is higher production costs involved, but these options are lighter weight and smaller-meaning they will fit in your house. Another advantage is that these power supplies are about 70-90% efficient. Since the efficient running of your computer is generally the goal, this increase in efficiency has a big pull for power supply choice.
While this sounds confusing, it really isn't. Switching power supplies use AC voltage-120V or 220V-which is generally what a house is equipped to handle anyway. There isn't any sophisticated equipment that you have to have wired into your house for its use. The main difference in the power supply needed comes in choosing the power factor correction and not in changing your plugs and house wiring to be able to use a switching power supply.
You may, however, have to increase your breaker capacity if you already have too much depending upon them when you plug your newest creation in, but that is to be expected with anything you add that uses the electrical circuits available in the average home. Another necessity is protecting your computer from power surges with a properly designed surge protector. Otherwise, there isn't much you have to do to prepare for your power supply choice.
If you are still confused, simply call up your local computer store and ask. Many of the employees in the stores can help you decide and find what you need. Always consider asking a professional computer tech who has experiencing in networking and other hardware areas of computers for the added security of getting the correct information and helpful recommendations that can make your experience with powering your computer an enjoyable one.
For Switching Power Supplies
Uninterruptible Power Supplies , or UPS, are devices that maintain a constant supply of power to any equipment connected to it. Uninterruptible Power Supplies do this by supplying power from a separate source when the original source of utility power is unavailable, giving a host of benefits against disruptions. The UPS systems basically sit between a power source, like a wall outlet, and a device, like a computer. In the event of a power failure, the uninterruptible power supply will provide the necessary power to the device as a back-up. A UPS can be anything from a battery to a back-up power generator: it is typically anything that helps a device remain temporarily operational when power is interrupted. Uninterruptible power supply generators are also anything that protects the device from undesired aspects of the power source, like surges, outages, or sags.
There are two major types of uninterruptible power supplies 'off-line which is called 'line interactive' and on-line for all your power-solution needs. The off-line type will switch from the original power source to its own power source instantly should a power failure occur. By this method it keeps the device temporarily powered until the original power source is available again, or its own power source runs out. The on-line type continuously draws energy and stores it into reserves, such as batteries, and will convert it into AC power for use by the device when the original power source has failed. Typically either system would also be backuped by a standby generator .
Uninterruptible power supplies should not be confused with standby generators . Standby generators do not protect the devices they are connected to from the undesirable features of power failure: the surges, sags, or any other momentary interruption. However, standby generators can assist a UPS in the event of lengthy power failures. In fact the two systems are often incorporated in the design of emergency power systems , larger systems of back-up power designed for crises that include lighting, generators, and refrigeration that are utilized in such places as hospitals and laboratories and ideal for medical and mobility applications.
A UPS system is the perfect device to guard against power disturbances such as faults on the electric delivery system, power line poles or lightning surges that can cause blackouts. To prevent loss of data while working on a computer, install an uninterruptible power supply. The slightest drop in power or a power surge may cause your computer to freeze or automatically shut down, both resulting in lost work, data and valuable time.
Yet crisis situations aren't the only power failures to be prepared for. One should always protect the power that is used on a continuous basis: computers are a good example of this. To determine what size of power supply equipment you will need, consider how much energy you would need should power fail. Also do you need disaster prevention as well
A UPS has a VA rating, voltsamps. The rating is the maximum amount of voltamps it can deliver in a power failure . If you choose a UPS with too small a VA rating, you will not be able to power your equipment; however if you choose one with a larger VA rating than what you need, this will be fine. You will just be able to power your equipment for longer periods of time should it be necessary. Overall, it is better to error on the side of a larger VA rating. You will want uninterruptible power supplies with ratings that are large enough to deliver power to all your necessary or vital equipment and allow for future growth of additional equipment.
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Both Victor Epand & John East are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.
Victor Epand has sinced written about articles on various topics from Shopping, Trucks and Interest. Victor Epand is an expert consultant for computer memory, PC supplies, and computer games. When shopping, we recommend the best online stores for
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