Pc how much power supply

Are you building a modern gaming PC, low power HTPC media server, or maybe you need to figure out power requirements for a rack in a data center? Building cryptocurrency mining rig? Check our Mining Rig Builder tool. Basic version of the OuterVision Power Supply Calculator allows users to quickly estimate power consumption with minimal selection of PC parts.

About be quiet! Inside be quiet! News Press releases Press reviews. PSU calculator Please enter all the system components that you use or plan to use in your system in the fields below. You can save your configuration and load it anytime if needed. Load configuration. Socket Please select. Model Please select. Graphics card. Count 1x 2x. The OCP on single-rail units kicks in only at much higher amperages, which could lead to a major melt-down if a serious overload occurs.

So which is better type of power supply is better—single-rail or multi-rail? Neither, usually. From a performance standpoint, both work equally well; and in general both are very safe to use. Another consideration is cabling. Power supplies are available with hard-wired cabling, with partially modular cabling, or with fully modular cabling. In modular power supplies, you can add or remove cabling from the PSU as needed to avoid case clutter.

Whenever you introduce an additional connection between the PSU and your components—as happens with modular power supplies—you add more resistance and another potential point of failure into the line; and any increase in resistance translates into lost efficiency. That said, the additional resistance is normally minimal and not a cause for concern for most users. Most people prefer modular PSUs, though they cost a bit more than nonmodular models. An affordable non-modular PSU.

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. Power output: How much do you need? Anticipate upgrades when buying a power supply Of course, you might want to run some scenarios to make sure you can handle your long-term needs. Protection Some power supply manufacturers will build in protections to help keep your components safe from power-related issues.

What is 80 PLUS certification? Form factor — Will your power supply fit?