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Installing Corsair PSU RM850x 850 Watt Power SupplyTech By Leon

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Corsair RMX Series, RM750x, 750 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black

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4.8 12,968 ratings

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Size: RM750x

Pattern: Power Supply

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Purchase options and add-ons

Model Name	RMx
Brand	Corsair
Compatible Devices	Personal Computer
Output Wattage	750
Wattage	750 watts
Cooling Method	Air
Item dimensions L x W x H	6.3 x 5.91 x 3.39 inches
Item Weight	3.7 Pounds
Power Supply Design	Full Modular
Fan Count	1

About this item

80 Plus Gold certified for lower power consumption, less noise and cooler temperatures
Tuned for low noise operation even at full load; MTBF hours 100,000 hours
Zero RPM fan mode for near silent operation at low to medium loads
100 percent industrial grade, 105°C rated Japanese capacitors ensure unwavering power and reliability
Fully modular cables, so you only connect the cables your system needs

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Corsair RMX Series (2021), RM750x, 750 Watt, Gold, Fully Modular Power Supply
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	This Item Corsair RMX Series, RM750x, 750 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black	Recommendations Corsair RMX Series (2021), RM750x, 750 Watt, Gold, Fully Modular Power Supply	dummy NZXT C750 PSU (2022) - PA-7G1BB-US - 750 Watt PSU - 80+ Gold Certified - Fully Modular - Sleeved Cables - ATX Gaming Power Supply	dummy CORSAIR 750W 80 Plus Gold Fully Modular ATX Power Supply, White - RM Series	dummy CORSAIR RM750x Shift Fully Modular ATX Power Supply - Modular Side Interface - ATX 3.0 & PCIe 5.0 Compliant - Zero RPM Fan Mode - 105°C-Rated Capacitors - 80 Plus Gold Efficiency - Black	dummy Thermaltake GF1 (2024) Fully Modular ATX 750W Power Supply - 80 Plus Gold - Ultra Quiet - Zero RPM, PS-TPD-0750FNFAGU-P
	Try again! Details Added to Cart spCSRF_Control	Try again! Details Added to Cart spCSRF_Control	Try again! Details Added to Cart spCSRF_Control	Try again! Details Added to Cart spCSRF_Control	Try again! Details Added to Cart spCSRF_Control	Try again! Details Added to Cart spCSRF_Control
Price	$164.78	-21% $109.99 List: $139.99	-31% $89.99 List: $129.99	-8% $119.99 List: $129.99	-23% $99.98 List: $129.99	-20% $79.99 List: $99.99
Delivery	Get it Jun 5 - 7	Get it as soon as Friday, Jun 7	Get it as soon as Friday, Jun 7	Get it as soon as Friday, Jun 7	Get it as soon as Friday, Jun 7	Get it as soon as Friday, Jun 7
Customer Ratings	4.812,968	4.79,968	4.6922	4.81,746	4.79,968	4.62,233
Noise level	4.6	4.5	4.5	4.4	4.5	4.5
Energy efficiency	4.6	4.6	4.8	4.3	4.6	4.5
Easy to install	4.5	4.4	4.5	4.5	4.4	4.5
Value for money	4.2	4.2	4.2	4.3	4.2	4.3
Quality of material	4.5	4.2	4.2	4.1	4.2	—
Sold By	Tech Deal Professional (S/N recorded)	Amazon.com	Amazon.com	Amazon.com	Amazon.com	Amazon.com
power supply design	Full Modular	Full Modular	Full Modular	Full	Full Modular	Full Modular
connector type	—	EPS	ATX	PCI Express	ATX, EPS	ATX
form factor	—	ATX	ATX	EPS12V	ATX	—
cooling method	Air	Air	Air	Air	—	Air
fan count	1	1	—	1	1	1
wattage	750 watts	750 watts	—	750 watts	750 watts	—

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Product information

Technical Details

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Other Technical Details

Brand

‎Corsair

Series

‎RMx

Item model number

‎CP-9020179-NA

Item Weight

‎3.65 pounds

Product Dimensions

‎6.3 x 5.91 x 3.39 inches

Item Dimensions LxWxH

‎6.3 x 5.91 x 3.39 inches

Color

‎80 PLUS Gold

Voltage

‎100240 Volts

Manufacturer

‎CORSAIR

ASIN

‎B079HGN5QS

Is Discontinued By Manufacturer

‎No

Date First Available

‎February 10, 2018

Additional Information

Customer Reviews

4.8 12,968 ratings

4.8 out of 5 stars

Best Sellers Rank

#274 in Computer Power Supplies

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

Product Warranty: For warranty information about this product, please click here

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From the manufacturer

What's in the box

RM750x 80 PLUS Gold Fully Modular ATX Power Supply

ATX CABLE 24-PIN (20+4)

2 EPS/ATX12V CABLE 8-PIN (4+4)

2 PCIe CABLE 8-PIN (6+2)

3 SATA CABLE (3 SATA)

2 PERIPHERAL CABLE (4-PIN)

FLOPPY DRIVE ADAPTER (4-PIN)

Product Description

Corsair RM750x series power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC. Using only Japanese 105 Degree C capacitors, users can depend on an RM750x PSUs' long life and reliability, backed by a ten year warranty. Zero RPM Mode means an RM750x series PSU is virtually silent at low and medium loads, and even at maximum power, a low noise fan ensures quiet operation. Fully modular cables make PC builds and upgrades easy, as you only need to install the cables your system requires. Quiet, efficient and dependable, an RM750x PSU has everything you need to power your high performance PC for years to come. PC for years to come. Continuous output rated temperature: 50°C.

Product guides and documents

User Guide (PDF)

User Manual (PDF)

Customer reviews

4.8 out of 5

12,968 global ratings

How customer reviews and ratings work

Customers say

Customers like the quality, noise and power of the system power device. For example, they mention it's a high quality, reliable product that provides ample power to the cpu and gpu and is ridiculously quiet. They appreciate the ease of installation, saying it has everything you need for proper installation. Customers are also happy with value, modularity, and design. Opinions are mixed on performance.

AI-generated from the text of customer reviews

462 customers mention331 positive131 negative

Customers like the quality of the power supply. They mention that it is a high quality product, solid, and reliable. They also say that it has 80+ Gold certification and 850W power output. Customers also say it has a nice design and is stable. They say it's better for cable management and that it had no problems handling 750 watts sustained.

"These power supplies are extremely well-built and come with a 10 year warranty...." Read more

"...It's quiet, colorful and was highly adaptable." Read more

"...installation was easy enough, and this PSU has more than enough connections for most applications...." Read more

"...ports (My board is a ASUS Crosshair X670E) and this PSU does not include the adapter for this plug, Although it's not necessary to power the board...." Read more

245 customers mention213 positive32 negative

Customers like the noise level of the system power device. For example, they mention it's ridiculously quiet and barely audible.

"...The fan often does not spin at idle and remains extremely quiet even when under near-full load...." Read more

"...It's quiet, colorful and was highly adaptable." Read more

"...The thing has been working flawlessly since, and is ridiculously quiet...." Read more

"...Very reliable, very stable, and barely audible even with your ear near it. I highly recommend Corsair's PSUs." Read more

179 customers mention154 positive25 negative

Customers like the power supply. They say it's a great product that provides ample power to the cpu and gpu, and is quiet while still working. It's also a good addition to any high energy use PC, with its massive 800W of power. Customers also mention that it'll provide 80+ Gold efficiency and fully-modular cables.

"...The output is stable with minimal ripple on the 12V rail and acceptable 5V & 3.3V characteristics...." Read more

"Good power supply that works well with high end components (Ryzen 5950X with a RTX 3080)...." Read more

"...The power supply itself seems to be fine, hasn't given me any issues, and is quiet, so from that perspective it's good...." Read more

"...there have been no issues and the PSU is supplying ample power to the cpu and gpu for this old Dell system...." Read more

157 customers mention141 positive16 negative

Customers find the installation of the system power device to be simple. They mention that it has everything they need for proper installation, making it easy to connect and manage the cables. They also appreciate the flexible and easy-to-route cables, which make wire management a breeze.

"...Cables are mostly flexible & easy to route, though the 24-pin ATX connector's capacitors do mildly complicate cable management moreso than with..." Read more

"...The installation was easy enough, and this PSU has more than enough connections for most applications...." Read more

"...The PSU doesn't make much noise and was easy to install.My only complaint with this power supply was with the provided power cable...." Read more

"...Everything runs flawlessly, simple to install with a focus on aesthetics and the cable management is insane - especially with that 5000d case...." Read more

85 customers mention61 positive24 negative

Customers like the value of the system power device. They say it's worth the higher price, a great modular PSU for the money, and saves them money over the bronze edition. Customers also mention that Corsair makes the best affordable high quality power supplies out there.

"...I got this PSU because it was the best balance between quality and price I could find. The RM750x 80+ Gold Certified specifically...." Read more

"...CONS- The price. It's a really nice price when on sale, but when not on sale, you can find some cheaper alternatives from non name brand..." Read more

"...It's certainly not the most value option on the market at $120-- other products probably offer the same wattage, features, and durability-- but as..." Read more

"Great modular PSU for the money, it’s Corsair, they’ve got a good reputation!" Read more

68 customers mention68 positive0 negative

Customers like that the power supply is completely modular. They say it makes for very clean builds and the black cables look great. Some customers also mention that it's a pretty basic fully modular PSU with every cable you can need.

"...Its fully modular, meaning you can only attach the wires you need, which eases the strain of the cable management chaos...." Read more

"...etc... the modular set up was perfect. I simply plugged one thing back in after the other, then 4 screws to mount the power supply into the case...." Read more

"...The modularity is great - I have about 1/2 the amount of cables routed through my case now...." Read more

"...Absolutely love the fully modular version and how I went from having what seemed like a hundred cable leads that I balled up in the bottom of my..." Read more

64 customers mention64 positive0 negative

Customers are satisfied with the design of the power supply. They mention that it has a high-end look and feel, and it comes with a well-designed bag for the power accessories. The quality looks good and it's easy to install. Some drawbacks include the SATA cables not being well designed.

"...It's quiet, colorful and was highly adaptable." Read more

"...Everything runs flawlessly, simple to install with a focus on aesthetics and the cable management is insane - especially with that 5000d case...." Read more

"...Looks great in all-black PC builds, if visible- Built in cables are well designed - the SATA cables, for example, have multiple connectors on..." Read more

"...the difference in quality right out of the box, it just has a high end look and feel to it with the packaging and everything...." Read more

339 customers mention220 positive119 negative

Customers are mixed about the performance of the power supply. Some mention that it functions well, while others say that it stopped working or burned out components.

"...The fan often does not spin at idle and remains extremely quiet even when under near-full load...." Read more

"...The thing has been working flawlessly since, and is ridiculously quiet...." Read more

"...There are a lot of reviews stating that the power supply stopped working or burned out components on their motherboard...." Read more

"...Everything runs flawlessly, simple to install with a focus on aesthetics and the cable management is insane - especially with that 5000d case...." Read more

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Trevor Woodard

Excellent Warranty

Reviewed in the United States on December 8, 2023

Size: RM850XPattern: Power SupplyVerified Purchase

These power supplies are extremely well-built and come with a 10 year warranty. The output is stable with minimal ripple on the 12V rail and acceptable 5V & 3.3V characteristics. Efficiency is on the upper end of the 80+ Gold specification, just barely missing 80+ Platinum. The fan often does not spin at idle and remains extremely quiet even when under near-full load. Coil whine has not been a problem, in contrast to older units. Cables are mostly flexible & easy to route, though the 24-pin ATX connector's capacitors do mildly complicate cable management moreso than with other cables, but do further smooth the output.

Helpful

Michael Hillsgrove

It was a learning curve, but once in it was perfect even a year later.

Reviewed in the United States on April 27, 2024

Size: RM850XPattern: Power SupplyVerified Purchase

It was a learning curve, but once in it was perfect even a year later. It's quiet, colorful and was highly adaptable.

Helpful

Nick

High Power Output with Great Value

Reviewed in the United States on March 23, 2021

Size: RM750xPattern: Power SupplyVerified Purchase

I purchased the RM750 after I got a more powerful GPU for my first build. Up until then, I had been using a 600-Watt EVGA non-modular PSU (which was great and had enough power output, but didn't have two PCIe 6+2 connections). Going to a fully modular PSU was quite convenient since I didn't have a load of unused cables hardwired into the old PSU just gunking up the space under the case. The installation was easy enough, and this PSU has more than enough connections for most applications. The thing has been working flawlessly since, and is ridiculously quiet.

I have friends who have used Corsair PSUs for years and have never experienced a failure or fault, so it's odd that so many here seem to be experiencing such.

Needless, to say, I fully recommend this product if you want enough power to provide for any gaming build with a good amount of headroom for future hardware that may consume more power.

Helpful

Bryan Chang

Solid, no issues with a standard PC

Reviewed in the United States on November 28, 2023

Size: RM750xPattern: Power SupplyVerified Purchase

Powering a Intel 12th gen system with a Nvidia 4070 4 hard drives with no issues. Very reliable, very stable, and barely audible even with your ear near it. I highly recommend Corsair's PSUs.

Helpful

Freddy

Great Power Supply that does it's job.

Reviewed in the United States on November 5, 2023

Size: RM850XPattern: Power SupplyVerified Purchase

Upgraded from a Cosair RMX 650x due to upgrading to the new Ryzen 7000x and video card upgrades and I've had no issues at all with the power supply.

Note: Some new Ryzen boards come with a PD_12v_PWR ports (My board is a ASUS Crosshair X670E) and this PSU does not include the adapter for this plug, Although it's not necessary to power the board. The port is used to supply the front panel with 60 watt charging vs 24 watt without it.

One person found this helpful

Helpful

Roger Qurioz

Excelente fuente poder

Reviewed in the United States on April 22, 2024

Size: RM1000xPattern: Power SupplyVerified Purchase

Que se puede decir de esta fuente poder que no se ha dicho. Es buena y listo.

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Stan

Good PSU, but odd power cable included

Reviewed in the United States on May 18, 2021

Size: RM1000xPattern: Power SupplyVerified Purchase

Good power supply that works well with high end components (Ryzen 5950X with a RTX 3080). Under load, my power pull hit 750 watts sustained and the PSU had no problems handling it. The PSU doesn't make much noise and was easy to install.

My only complaint with this power supply was with the provided power cable. Rather than providing a 3 pin grounded power cable, a 2 pin power cable with a grounding wire was provided (picture provided). Not really a problem since I have lots of 3 pin power cables, but why include such a specialized cable that won't work with most household outlets. If someone were to make the mistake of using this cable on a standard household plug and didn't connect the ground wire, it would present a fire hazard. There are a lot of reviews stating that the power supply stopped working or burned out components on their motherboard. I suspect that this may be the reason.

9 people found this helpful

Helpful

Big Poppa Pump

Corsair quality per usual

Reviewed in the United States on March 8, 2021

Size: RM850XPattern: Power SupplyVerified Purchase

Bought this to replace an old 650x corsair PS I had in my last build for the current rig. That power supply lasted nearly 11 years people! Sure it was older and not modular as that wasn't a thing - but 11 years? My system is centered around corsair from the cpu cooler, ram, fans, pc case, mouse pad and psu. Everything runs flawlessly, simple to install with a focus on aesthetics and the cable management is insane - especially with that 5000d case.

850x is more than I require, but this is also future proofing as I intend to be using this psu for a decade or so. Its fully modular, meaning you can only attach the wires you need, which eases the strain of the cable management chaos. I have 4 cables attached to power the cpu, gpu, sata sdd backups and of course all the rgb modules on the back panel). Great, quiet and modular psu backed by Corsairs legendary quality.

5 people found this helpful

Helpful

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Abelardo Ortiz

Joya

Reviewed in Mexico on October 25, 2023

Size: RM650xPattern: Power SupplyVerified Purchase

LLevo con ella 2 años, funcionando sin problema, me siento protegido, actualmente tengo una 3060ti y todo super bien

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Ariel W

Corsair RM750x 750 Watt 80+ Gold Power Supply - Quiet and Efficient Performance!

Reviewed in Canada on August 2, 2023

Size: RM750xPattern: Power SupplyVerified Purchase

The Corsair RM750x 750 Watt 80+ Gold Power Supply is a top-notch PSU that offers quiet and efficient performance, making it an excellent choice for high-performance systems. With its 80+ Gold certification, fully modular design, and zero RPM fan mode, this power supply delivers reliable and stable power while keeping noise levels to a minimum.

Pros:
1. Efficient and Reliable: The 80+ Gold certification ensures high energy efficiency, reducing power wastage and operating costs.

2. Fully Modular Design: The fully modular cabling system allows for precise cable management, ensuring a clean and clutter-free build.

3. Silent Operation: The zero RPM fan mode ensures quiet operation during low to moderate system loads, keeping noise levels to a minimum.

4. Powerful Output: With 750 watts of power, this PSU is capable of handling high-end components and demanding tasks.

5. Premium Build Quality: Corsair is a trusted brand known for producing high-quality power supplies, ensuring reliability and long-term performance.

Cons:
1. None Noted: The Corsair RM750x 750 Watt 80+ Gold Power Supply has met all expectations, and there are no reported drawbacks or issues during use.

In conclusion, the Corsair RM750x 750 Watt 80+ Gold Power Supply stands out as a top-tier PSU, providing quiet and efficient power delivery for high-performance systems. Its 80+ Gold certification, fully modular design, and zero RPM fan mode make it an ideal choice for users seeking a reliable and silent power solution.

With no reported drawbacks and widespread user satisfaction, I confidently rate the Corsair RM750x 750 Watt 80+ Gold Power Supply with a perfect five stars. Power your system with confidence using this premium and efficient power supply - an essential component for any PC build or upgrade!

One person found this helpful

Leong T.

Excellent Performance and Silent Operation, with a Minor Initial Odor

Reviewed in Canada on May 26, 2023

Size: RM1000xPattern: Power SupplyVerified Purchase

I had a disappointing experience with my old EVGA 850 power supply, as it suffered from bothersome coil whine under load, resulting in performance issues while gaming, specifically in Elden Ring with my 3080ti. Seeking a solution, I decided to replace it with the Corsair RMx 1KW power supply. The difference was remarkable.

The RMx 1KW operates silently under any load, delivering power as expected without any performance issues. It even resolved strange OS-level freezes that I was encountering. Corsair's reputation for quality is well-deserved, and my 10-year-old PC still relies on an AX1200 from Corsair, which has been a reliable workhorse.

The only minor drawback I noticed was a temporary chemical smell during the initial usage period. However, this is expected from a brand new product, and the smell completely dissipated after a couple of days of heavy usage. If you are sensitive to odors, I recommend ensuring good ventilation in the area during the first few days. Nonetheless, this minor inconvenience does not warrant a deduction in my rating.

Overall, I highly recommend investing in a quality power supply like the Corsair RMx 1KW, as it delivers exceptional performance and operates silently, making it worth the additional cost compared to budget options.

Aldo

Recomendada

Reviewed in Mexico on August 27, 2023

Size: RM850XPattern: Power SupplyVerified Purchase

The media could not be loaded.

Es una fuente bastante silenciosa. Considerando que es uno de los componentes más importantes de la PC, vale la pena invertir en un producto de calidad. A considerar que los cables incluidos son demasiado robustos y rígidos, por lo que son complicados de manejar, recomiendo su instalación en un gabinete amplio. Sobre los cables, incluye bastantes, por lo que la conectividad no será un problema.

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Esteban

Calidad ante todo

Reviewed in Mexico on February 26, 2021

Size: RM750xPattern: Power SupplyVerified Purchase

Sin duda con una fuente de poder de este calibre no les faltara potencia para un ensamble algo cargado, la fuente es silenciosa y en 2 meses de uso no he tenido ningún problema con ella

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Corsair RMX Series, RM750x, 750 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black

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Installing Corsair PSU RM850x 850 Watt Power Supply

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