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How to install a power supply on your PC

How to build a PC Follow these steps for a foolproof upgrade that could keep your PC going for years to come. Thomas Ryan/IDG Today’s Best Tech Deals Picked by PCWorld’s Editors Top Deals On Great Products Picked by Techconnect’s Editors Don’t underestimate the importance of your PC’s power source. A good power supply serves…

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Follow these steps for a foolproof update that could maintain your PC going for a long time to come.

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Don’t underestimate the significance of your PC’s power source. A good power supply serves as the foundation for a low-maintenance and highly reliable computer. But more often than not, boxed, pre-built desktops send with the least expensive power supplies that meet the standards of the product guarantees.

This implies that two or three years later purchasing your computer, you might find yourself with a perfectly functional desktop computer that one day decides either not to power on or to emit a puff of smoke. Upgrading your graphics card may also push your PC’s power supply past its limitations, depending upon the model.

But fear not. Installing a power supply is a surprisingly easy process. It is much simpler than really picking the very best power source for your PC. We are going to demonstrate how to safely remove a PSU out of your present personal computer, then walk you through the steps of installing your new energy supply. Skip to that section if you’re building an entirely new PC.

How to remove your old PC power source

Silverstone

A 6+2 pin connector used to provide electricity to graphics cards and CPUs.

The very first thing you’ll need to do will be gather your gear –probably just a set of gloves and a Phillips head screw driver–and then remove your old power supply.

Start by unplugging from the wall each the cables attached to your computer. If your power supply unit (PSU) includes a power button available on the back of your PC, turn it to the off position, and then remove the side panel of your situation so you can access the PSU.

A lot of different power connectors lead in the power source and power that the various components in your PC. You will need to disconnect all these wires before the power supply can be eliminated, or else they’ll snag and hold the PSU from the case.

psu pcworld 5 of 6 Thomas Ryan

Don’t forget to eliminate the large 24-pin power connector on your motherboard.

You may find it useful to photograph which electricity cables went to which parts so that you can have a reference for plugging in the cables on your new electricity supply. Do not forget to eliminate the four- or eight-pin CPU power connector located near the CPU socket on your motherboard, and the 24-pin power cable connected to the motherboard along its mid-line on the left side. As you remove each cable, pull it from the case to avoid tangling them with another wires. Doing this also will help ensure that all power cables are disconnected, also makes it simpler to remove the PSU in the case when you’re done.

You’ll next have to remove the screws that hold your power source in position. In most cases there are only four screws, but layouts differ from vendor to vendor. Set these securely to the side.

Now you can pull off your old power supply from your case.

psu pcworld 1 of 1 Thomas Ryan

How to install a power supply from your PC

Choosing a replacement PSU may be a daunting task, however PCWorld’s guide to choosing the very best PC power supply may set you on the right path. Another helpful tool is the wattage rating recorded on both sides of the old power source.

You can use these two tools to comprehend how much wattage your brand new power source will need to deliver and which features you’ll want–unless you are updating to a new, more powerful graphics card that demands a new, stronger PSU. Keep in mind that there is nothing wrong with buying a power supply that provides more power than you really need, particularly if there’s the possibility of further PC component upgrades in your future.

If you purchased a modular power supply with detachable cables, figure out which ones you’ll need to deliver energy to your components and plug them in to your power source before you get started–it’s much easier to do earlier that the PSU is embedded on your computer. 

With your new energy supply at the ready, insert it in the exact same position that your old power source occupied on your PC case. Your new power supply should come with screws to affix the unit to rear panel of your situation; twist those in as instructed by your manual.

psu pcworld 4 of 6 Thomas Ryan

After you’ve installed the new power source on your PC, it’s time to reconnect electricity to all your components.

Now it is time to begin wiring up things. Feed the wires in supporting your motherboard, then use your case’s cut-out holes pull every connector through near the corresponding plug for every . Plug the 24-pin power connector into your motherboard , then go to your 4 or 8-pin CPU power connector. Plug in the optical drives, SSDs, and hard drives as needed. Ultimately, plug any required PCI-E power connectors into your graphics card (if appropriate ), then double all of the plugs to be certain that they are securely seated. If you took photographs of labelled the cables on your old power supply, you can now use those as a benchmark to figuring out how to connect the wires of your new power supply.

If you purchased a non-modular power supply with a bunch of additional cables attached, then conceal them from your motherboard tray at the back of your PC. Many newer instances also consist of power supply shrouds made to conceal your PSU and any excess cables.

Seal your computer’s case back, plug everything back in, flip on the power switch on the rear of your own PSU if needed (if yours has one, it will be visible from the rear of your case), and electricity your computer up.

Now you have got a PC that is prepared to operate for years to come without issue–or at least without PSU-related issues. Knowing how to repair simple issues such as a dead power supply is a great way to get the absolute most out of your wealth and to avoid splurging on an entirely new computer.

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