The power supply converts a 110 115 or 220 230 volt ac alternating current into a steady low voltage dc direct current usable by the computer and rated by the number of watts it generates.
What power supply does my pc have.
We assume the system has a single monitor attached to the gpu.
In both cases one method of checking the power supply is universal and that is manually opening the chassis side panel.
The power supply of a computer is important because without it the internal hardware cannot function.
Power button switch usually located on the front of a desktop computer s case or on the top or side of a laptop or tablet power switch on the back of the computer usually just on a desktop power switch on the power strip surge protector or ups if you re using any of them check for disconnected computer power cable connections.
How much wattage do you need for your pc build.
To answer this question outervision psu calculator analyzes dozens of power supplies per each certification category compares their efficiency unit price computer power consumption overall pc energy cost and payback period.
We assume the system is working in a power saving mode if available.
Manually calculating this requires that you multiply the total amps of all components by the total volts of all components.
Why you need to know about your psu.
The image shows an antec true 330 a 330 watt power supply.
If you have a computer that is already assembled you can determine how big the power supply is by opening the computer case and examining the unit.
If you have a multimonitor setup the results may vary.
The result is the total watts that your pc build requires.
The results do not include psu power losses or devices connected to external power sources like monitors and printers.
It runs through electricity routes from the alternating current ac provided by the power company into the direct current dc used by the pc components in the required voltage.
It s easy to know about the power supply of your pc if you have an assembled computer but still there are some power supplies which don t mention their power capacity in big fonts as we see on a lot of premium quality power supplies nowadays which makes it.
This tool will help you select a suitable power supply unit for your system.
As shown in the image above this chieftec power supply is rated at 500 watts.
The most preferred way to know about your power supply or psu which is by opening your computer case side panel and look for a sticker or label on it which provides the important information about your psu that includes psu name model number power wattage voltage and current details.