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Best PC power supply 2017: top PSUs for your PC

A power supply is one of the most crucial computer components, but perhaps least scrutinized when putting together a computer. So much of your build can be made or broken by a power supply, which is why it’s so important. After all, a $2000 custom build has absolutely no use without juice.

A poor quality power supply can also cause enormous headaches down the road. When the power supply starts to fail, it isn’t always obvious what the problem is. One day, you’re playing a game and suddenly your computer crashes and reboots. Troubleshooting is only fun when you get to the root of the problem quickly, so buying the right part that’s free from potential troubles is a solid investment in your computer and your personal sanity.

Finding the right power supply is crucial, but there are plenty of great options out there to suit your needs. There are great budget options, powerful, high-capacity power supplies for huge gaming rigs, and ones specifically built to run quietly. Whatever you might need, we’ve found the best of the best power supplies for you.

Best power supply: Corsair RM750x

The best all-around power supply for your needs

Form factor: ATX | Capacity: 750w | Efficiency rating: 80 Plus Gold | Modularity: Full | Warranty: 10-year

Zero-RPM fan mode
Modular Cables
 750w max capacity small for power gamers

The Corsair RM750x is the best all around power supply for your needs. On top of a 10 year warranty and an 80 Gold Plus efficiency rating, the Corsair has a fully modular cabling system. That means you only need to install the cables you need. Not having unused cables in your case is great for air-flow and for those who appreciate the value of good cable management.

Best budget power supply: EVGA 500 B1

Everything you need to get started

Form factor: ATX | Capacity: 500W | Efficiency rating: 80 Plus Bronze | Modularity: None | Warranty: 3-year

6 SATA cables
500w rating

 Not all power supplies need to be expensive. If you’re looking to save money without sacrificing quality, this 500 watt supply from EVGA will definitely suit your needs. There are plenty of cables to power up your SATA devices, and two cables for your PCIe needs. A three year warranty for less than $50 USD makes it even more attractive, and 500 watts should be enough for most entry- to mid-level gaming rigs.

Best silent power supply: be quiet! Straight Power 10

Quiet as the night

Form factor: ATX | Capacity: 400W – 700W | Efficiency rating: 80 Plus Gold | Modularity: Semi | Warranty: 5-year

Quiet  ATX and EPS support
A little pricey across capacities

Power supply fans seem to run the loudest, and unlike case fans, they aren’t quickly swappable. Fortunately the Straight Power 10 line up runs nice a quiet. Options range from 400w to 700w, and they’re SLI and Crossfire certified. They also have a modular design, letting you use only the cables you absolutely need to use. It’s also low-profile, freeing up even more space inside your computer tower.

Best compact power supply: Silverstone SFX Series SST-SX550

Perfect for Micro ATX and Mini ITX PC builds

Form factor: SFX | Capacity: 550W | Efficiency rating: 80 Plus Gold | Modularity: None | Warranty: 3-year

Compact size
ATX and EPS support
Limited number of connectors

Power supplies take up a sizeable chunk of space in any tower, but the march of time and technology has started shrinking them while still letting them output a solid level of power. The Silverstone SX550 is almost half the size of other power supplies, so you can help better facilitate cables and airflow inside your computer. Not to mention their small size makes them perfect for Micro ATX and Mini ITX PC builds. 

Best high capacity power supply: Corsair AX1500i

Monster power

Form factor: EPS | Capacity: 1500W | Efficiency rating: 80 Plus Titanium | Modularity: Fully | Warranty: 10-year

Titanium efficiency rating
Monster capacity
Huge price tag
Enormous size

This is an absolute monster of a power supply. This is for the serious builder who plans on powering multiple graphics cards, cooling systems, and perhaps a small village in rural North Dakota. It has the highest possible 80 Plus Titanium efficiency rating, and is fully modular so you only need to add the cables required by your build. If you have the money to go big, this is the power supply to get. 

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