Desktop Power Voltage

Plug the psu power cable into a wall socket or surge protector and turn on the computer.

Desktop power voltage.

Several direct current voltages are required and they must be regulated with some accuracy to provide stable operation of the computer. If it doesn t light try a different power cable and a different socket to eliminate those items as the source of the problem. Atx power supplies support the soft off feature allowing software to turn off the power supply. To make testing your power supply easier you should also move your disconnected and open computer case somewhere easy to work like on a table or other flat non static surface.

The power supply unit is the piece of hardware that converts the power provided from the outlet into usable power for the many parts inside the computer case. The atx12v form factor is the mainstream choice now. Atx power supplies use a single 20 pin connector as the main power connector. Power supply is an important component of the system and there is no computer that will be able to work without it.

If you re having trouble starting your computer you should consider checking if everything s alright with your pc s power supply. In short this involves turning off the computer removing the power cable and unplugging anything else connected to the outside of your computer. The desktop computer power supply changes alternating current from a wall socket of mains electricity to low voltage direct current to operate the processor and peripheral devices. It s also possible that after an outage your fans power on but your pc doesn t.

It converts the alternating current from your wall outlet into a continuous form of power called direct current that the computer components require. Manually calculating this requires that you multiply the total amps of all components by the total volts of all components. Atx power supplies provide an extra 3 3v voltage rail. The result is the total watts that your pc build requires.

The best power supply for your pc build is the one that provides the right amount of wattage to all components simultaneously. Most power supply models have a light on back of the unit that glows when it s powered on. If you re looking for a step by step guide on how to fix power supply issues you can take a look at our comprehensive guide.