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ASUS ROG STRIX Series PSU
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Choosing the Best Power Supply for your Computer

One of the most crucial components of any PC is the power supply unit or PSU. Every component from the motherboard to CPU and even hard drives need to be connected to an adequate power supply to function properly, and the AC power that comes from your wall outlet power cord can’t power them directly. Instead, you need a DC power converter to regulate the different low voltages that each component requires. That’s why a reliable DC power supply is an essential part of every desktop computer. In laptops, the wall charger acts as the adapter that converts AC into DC power, and internal voltage regulation circuits handle the rest.

While multiple power supply options may work for your setup, determining the best specific power supply for your desktop PC can help to reduce build costs and increase system efficiency. To find the ideal PSU for your build, you will need to consider factors including wattage, connector compatibility, and form factor.

What Power Supply Wattage Does My PC Need

When choosing a PC power supply, the first important factor to consider is the power provided by the device measured in wattage. The most popular sizes of power supply are 750w, 500w, 850w and 1000w. 750 watt power supplies are the most common and are sufficient for most computers while leaving ample room for future upgrades.

Power supplies for gaming PCs may require a higher wattage because of their powerful graphics cards and processors. Other features commonly found in power supplies for gaming PCs are addressable RGB LEDs or support for multiple graphics cards. The best way to determine how powerful your PSU needs to be is to look at the other components in your computer and how much power they will draw.

The second primary specification to look for when choosing a PC power supply is the device's 80 Plus certification. Often, EVGA, Corsair or other brands of PC power supply will have a standardized 80 Plus certification. The available 80 Plus certifications in ascending order of efficiency are 80 Plus White, Bronze, Silver, Gold, Platinum and Titanium. These ratings tell you the operating energy efficiency of the device and can help to narrow down the perfect power supply for your PC. For example, a 600 watt 80 Plus Gold power supply may outperform a 750 watt Bronze certified device for specific tasks.

Connectors Form Factor and Other Things to Know

Another major factor to consider when choosing a PC power supply is how the device connects to other components. This has important implications for your PCs cable management and aesthetics, as well as which components you can use in your build. Modular power supplies are the most customizable because power cables can be added and removed easily, so you are only using the connections needed in your PC. Cable management and case organization are much easier with modular power supplies due to this key feature.

Most modular PSUs today have a relatively standardized set of connectors that provide a range of options for powering your components. However, some high end GPUs require additional PCIe connectors, so it is always a good idea to check the type of power supply connectors required for your specific components, no matter what type of PSU you are using. In addition, note that you should only use OEM cables to connect your modular power supply to other PC components. Modular PSU cables, while they may be physically compatible, aren’t always interchangeable because the pin layouts on the PSU can vary. Using a non specified cable may cause electrical damage to your components, and the damage likely will not be covered by any warranty.

Non modular power supplies can function in the same capacity as their modular counterparts, however, cables come pre connected to the device and cannot be removed. While non modular PSUs can come with some substantial cost savings, they often require carefully planned cable management since you won’t be able to remove cables you don’t need. Semi modular power supplies are a cost efficient compromise because they have some pre assembled cables such as the 24 pin connector for the motherboard, as well as removable ones.

A power supplys form factor, while less varied than other specifications, is undeniably important. If your PSU doesn't fit inside your computer case, none of the other features will matter. Most commonly, you will find ATX power supplies, which are considered full size and fit in almost any consumer PC. Smaller form factors do exist, such as SFX, Flex ATX, and TFX. These are useful for anyone who wants to build a more compact PC. To find which power supply form factor your PC supports, you can check the specifications of your case.

Finally, cooling and airflow are other key considerations for anyone buying a power supply for their PC build. All computer power supplies generate heat as they operate, which is why most come with cooling fans built into the unit housing. That means it is also important to position the power supply in a location within your case where it has unobstructed airflow so the fan can work as intended.

Not sure which power supply is the best choice for your PC? Micro Center experts are happy to help! Visit our help center for tons of resources about choosing the right PC components for your build or chat live with a Micro Center employee for personalized advice.

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Showing 1–20 of 336 for “asus rog strix”
Community Article Will you carry the ASUS ROG STRIX SCAR 17 G733QS-XS98Q? — Micro Center Is so when will it be available? Community Article When will the Asus ROG Strix B550-XE Gaming WiFi get restocked? — Micro Center This motherboard is on your website and you ave the best price out of all retailers but it has been out of stock for a long time but in that time it has had… Community Article Does my laptop support dual screens? Laptop Asus ROG Strix G15 G513QR laptop and second Screen — Micro Center Hello Everyone, Does Asus ROG Strix G15 G513QR laptop support dual screen. I have a LG Flatron W2361VG to use as a second screen. Community Article VGA white light showing up on Asus rog strix b350-f mobo — Micro Center When I try to boot now, a white light labled vga lights up on my mobo, how do I get it to boot, and fix it. Community Article Installation issues: Corsair H100i Capellix Elite AIO cooler with ASUS ROG STRIX B450-F MOBO — Micro Center Building new computer for my son. Community Article The ASUS ROG Strix SCAR 15 G533ZW-XS96 is a Mobile PC Gamers Dream! — Micro Center Written By @Shoan041 I recently had the pleasure of testing out the Asus Rog Strix SCAR 15 G533ZW-XS96 gaming laptop and it is an incredible piece of hardware. Community Article q code 55 on asus rog strix 7690-e — Micro Center I know the code refers to memory not installed but i was wondering since i checked my two sticks of ram that i have (CORSAIR VENGEANCE DDR5 RAM 32GB) and i would get the same code on both sticks in all ports i dont have a gpu installed yet and i dont have a intergraded gpu on cpu i9 13900KF if that could possibly be the reason or not? Community Article Do you guys have any problems with the Asus Rog Strix LC 360 fans? — Micro Center I bought one ever since i bought the product, one of the fans did not light up and I can not get it to work. Community Article AMD Radeon RX 5500 XT Asus ROG Strix vs. Asus TUF GeForce RTX 2060 Gaming OC — Micro Center Can you please tell me which graphics card is better the AMD Radeon RX 5500 XT Asus ROG Strix OC 8GB or the Asus TUF GeForce RTX 2060 Gaming OC? Community Article Looking for a 2x 32 GB Memory for an older ASUS ROG STRIX 470-F w/AMD 5900x. — Micro Center I have an Asus ROG STRIX X470-F GAMING, and recently purchased an AMD Ryzen 5900x processor, with an old 1080TI (which I hope to someday upgrade). Community Article Ryzen 7 3700x + G.Skill Trident Z (DDR4-3600 CL19) 4x8gb (32gb kit) (ASUS RoG Strix x570-E Gaming) — Micro Center I've looked everywhere for information on this build, but here goes.. I have already purchased my MOBO + RAM Motherboard: Community Article ASUS ROG STRIX RTX 3090 — Micro Center Just checking... NVIDIA decreases production to increase price. NVIDIA distributors and thugs deploy bots to buy up stock. Community Article ASUS ROG Strix G15 G512LW — Micro Center Hello.   I'm looking at purchasing the ASUS ROG Strix G15 G512LW (part #099655) for $1599.00 and the deal seems too good to be true. Community Article AMD Computer Buying Guide – Laptops to Gaming Desktops — Micro Center AMD computers are some of the most reliable on the market, thanks in no small part to their high-quality design and high-powered specs. Community Article Now Available Nationwide: ASUS Barebones PCs! — Micro Center Written by Sean Mekinda Looking to build your own PC, but don't want to deal with the hassle of part compatibility? Community Article Asus ROG STRIX Z690-G; INTEL I7-12700K; - Micro Center Build — Micro Center Asus ROG STRIX Z690-G; INTEL I7-12700K; - Micro Center BuildAsus ROG STRIX Z690-G Motherboard (LG1700); INTEL I7-12700K CPU; G.SKILL 32GB 2X16 D5 6000 TRIZ. Community Article Which Graphics Card better for my PC for Playing Apex Legends? — Micro Center Monitor: Asus Tuf 259QR 165HZ Motherboard: Asus Rog-Strix Z590E Processor: Community Article Asus ROG Strix 3070 Bundle Code for Games — Micro Center I recently purchased an 3070 from MC, Cambridge. I don’t receive a game code yet..... Community Article ASUS ROG STRIX X670E-E with Error 00 — Micro Center Built a new PC and booted and installed windows. I shut down PC and next time I booted it I just get error code 00 on the Motherboard. Community Article Trade my Asus Rog 6800xt water cooled for 3080 near Tustin store — Micro Center I have a Asus Rog Strix water cooled 6800xt and I am looking to trade for a 3080 for streaming.

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