Unfortunately, there is no way to know about your PSU specification by using any hardware detection software , because the PSU does not have any communication interface with the motherboard, as its only job is to deliver power to the components. Note: There are few high-end power supplies, especially from Corsair that lets you monitor and manage fan speed, temperature, and power output through their software, e.
Corsair Link Hub. You can also find the total Wattage of the PSU, which is generally printed in huge fonts, and also the 80 Plus Certification Rating if it has one. Below is a Corsair RM power supply of Watts. Input Voltage — It is the AC voltage at which the power supply operates, and this you have to supply to it. Some power supplies can operate in a wide range of voltages i. However, others can have a physical switch that allows you to select an appropriate voltage based on the voltage supplied in your area or country.
DC Output — It is the output voltage provided by your power supply. These are also known as Rails i. Here I have not included V Rail, because it is no longer used, and is present for some legacy support only. Below, you can see a single 12V and Dual 12v power supply. Max Load A — Below each voltage level or Rail, you can see the maximum amount of current in Amperes that each Rail can provide.
For example, if 12V Rail has 35A current listed under it, then it cannot provide more than 35A current combined for various devices or components that you have in your PC. If you overload it then it may result in PSU failure or computer shutdown. Maximum Power Combined — It is the maximum power for a single rail or for combined rails.
The power is calculated in Watts, which is the product of Voltage and Current. So, the formula for power is as follows:. After opening the case, you can also check the number and types of connectors and cables that your power supply has. Below are the most common types of cables that you generally find in a power supply that is ATX 12V 2. After knowing about the name and model number of your PSU, you can go to its manufacturer website to know more details about it.
You can also download the PSU manual or specs sheet from there. If you have a pre-built PC then you can refer your manual for its specifications that can tell about the installed power supply. This information might not be always accurate, because some manufacturers can change the PSU in their newer variants of the same PC model, so it is always better to open your PC case side panel to check your PSU model and specifications.
If you have got any queries regarding the power supply PSU you have or its specifications, then you can ask me here by leaving a comment below. I have done M. Tech in IT and B. My ATX power supply purchased June appears to have failed. I have another very similar PSU, though of lower output W vs W that has similar voltage outputs. Can I extend this lead wire?
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Question Is there a way to know the PSU in a computer without opening it? Thread starter Abhishek 55 Start date Apr 25, Forums Hardware Systems. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Previous Next Sort by votes.
That means it needs to have all the required connector types. The first connector to consider is the main connector that powers the motherboard.
This connector comes in two types, pin and pin. Just check to be sure. Next up is the processor power connector, which comes in 4-pin and 8-pin versions. As with the main power connector, many modern motherboards have switched to the larger format. Again, make sure your power supply is compatible.
The most frequently used power connector is the 4-pin Molex connector. That means they require fans to stay cool and run efficiently. If your PC operates in a quiet space, then larger fans that spin more slowly to move the same amount of air will likely result in a quieter PC. This is one area where in-depth reviews will be particularly helpful, as they tend to measure how loud a power supply is during various levels of operation and so offer some guidance as to how loud you can expect your PC to run.
Finally, there are three basic types of power supply cabling. Hard-wired cabling means that every connector is directly connected to the power supply and so will be present whether needed or not. Modular cabling means that each connector can be added in as needed. That makes it easier to keep your case clean and uncluttered, but it also introduces some additional complexity — and price — and some additional resistance thanks to extra physical connections. Hybrid systems have some cables, such as the main power connect, physically connected and the others being optional.
But spending a little time up-front to make sure your power supply provides your PC components with reliable, consistent, and safe power will save you huge amounts of time in the long term, and it will help make your PC a better and more efficient machine.
A good article on power supplies. I am facing this issue on a build of 6 years ago. I have a problem with boot up. Save my name, email, and website in this browser for the next time I comment. All rights reserved. Close Search. While power supplies might not be the sexiest components in system builds, they are one of the most important.
Your email address will not be published. Can u help me? Hi, just a thank you for the comprehensive yet concise article with technical content made accessible through well structured writing that lead me from ignorance to enlightenment regarding my PSU hunt at least in seconds, and wider kudos for the site as a whole. Such a rarity to find quality content, especially without pop ups, affiliate links and sponsored content.
Outstanding piece of work. Thank you! Hey Beach Boui, thanks for reading and commenting. Glad you found the guide helpful. Good luck with your new build! Skip to main content Skip to primary sidebar Skip to footer Tech Guided is supported by its readers. How to Choose A Motherboard 4. How to Choose A Graphics Card 5. How to Choose A Power Supply 6. What to Look for in A Gaming Chair. Comments Leave a Reply Cancel reply Your email address will not be published.
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