What to Look for in PC Power Supplies

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Personal computer users usually do not pay much attention to power supply units, when these devices play a crucial role to their equipment. Imagine what happens when the power supply fails and you cannot work on your pc because it won’;;;t work. Investing in good PC power supplies is imperative if you wish to work on your pc without sudden interruptions. 

Power supply units or PSUs are essential components of computer systems that should not be overlooked. Substandard PSUs may not provide the right amount of power your system needs. This can result in reduced lifespan of your computer and its components. Inspecting the PSU is one thing you should do, especially if you have a new computer.

Don’;;t go for cheap power supply units.

Current processors have higher power demands than the old processors. So, a 25-dollar PSU may not be able to supply the power demands of your current PC. If you are using an old PSU, it is probably wise to look at those new models in the market. An old power supply unit may also have parts that may fail soon. You don’;;;t want your new computer to suffer glitches due to bad power supply. 

Check out your PC’;;;s power requirements.

Several factors determine how much power your computer system needs. New graphics cards and PCI express bus need more power for optimum operation than their previous counterparts. 

One way to match power requirements with power supply output is by inspecting the wattage on the +12v line.  It should be a minimum of 18a. 

PC experts suggest using power supply units with multiple 12V rails, but enthusiasts actually prefer one large 12V line. Take note that high-end units with multiple 12V lines are designed to go past the ATX safety specifications.

Choose efficient units.

As you know power supply units convert high voltage electricity from the wall outlet to low voltage power for the PC to use. Heat is generated during this conversion, and it is lost energy. Efficient PSUs reduce heat loss and reduces the amount of power consumed by the system. 

Get low noise PSUs.

Power supplies heat up and so they have built-in fans to prevent overheating. These fans produce bothering noise, but PSU designers have come up with models that don’;;;t produce much noise. However, PSUs branded as silent may still emit some noise. To make sure, test them before purchasing.


PSUs are not expected to work at their full capacity. A typical unit usually works best around 50% of its rated capacity, 60% at most. Going farther than this can be detrimental to the device.

Style is a big part of it, and when you’;re building a custom PC you’;ll want a case that stands out. The overall style is the first thing most people look at, but beyond that there are plenty of other factors to consider. While the interior space is usually no problem for motherboards and other components, making sure you have enough space for drives and ports is important as well. You’;ll need to get a case that is the right size for whatever you’;re planning on doing – whether it’;s a mid-tower, full tower, or something a little bit more ‘;custom’; in overall design.

Along with the cases, you’;ll also have to make sure that the computer gets all the power it needs to operate properly, and using PC power supplies that match your needs is important. In the case of repairs, a surprising number of people actually throw away their old computers due to a power supply issue, assuming it’;s dead when in fact it’;s a very inexpensive repair. Finding power supply equipment and installing it takes only a few simple steps and can breathe new life into an old computer or make sure that a new build gets all the power it needs.

Please refer to http://www.mypccase.com/powersupply3.html for more details.


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