850w power supply corsair

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corsair Logo Corsair Corsair RMx Watt 80 Plus Gold ATX Fully Modular Power Supply

Corsair RMx series power supplies give you extremely tight voltage control, quiet operation, Gold-certified efficiency, and a fully modular cable set. Built with all Japanese C capacitors, theyre a great choice for high performance PCs where reliability is essential. 80 PLUS Gold efficiency reduces operating cost and excess heat, and Zero RPM fan mode ensures virtual silence at low and medium loads. And, the fully modular DC cables make builds and upgrades easy, with clean, great-looking results.

Sours: https://www.microcenter.com/product//corsair-rmxwattplus-gold-atx-fully-modular-power-supply

Corsair RMx Series () RMx 80PLUS Gold

Corsair RMx Series

TheCorsair RMx is a % modular PC power supply with an innovative mm fan. Ideal for the latest generation of gaming and power user PCs, it delivers stable, reliable power and is 80PLUS Gold certified for high power efficiency and low power loss.

Full modularity and high efficiency

CORSAIR RM fully modular power supplies are designed with the highest quality components to bring 80 PLUS Gold efficiency to your PC. With a maximum efficiency of over 90%, RMx power supplies produce low levels of heat and noise: that means less hassle and more time to play.

Magnetically levitated fan

The mm ML fan uses magnetically levitated bearings and custom designed rotors for unmatched performance and absolute discretion. The result: your power supply is perfectly cooled and your PC runs almost silently!

Sours: https://www.ldlc.com/en/product/PBhtml
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Our Verdict

Corsair managed to improve the already great RMx, offering even higher performance and a magnetic levitation fan.

For

  • Full power at 47 degrees Celsius
  • High overall performance
  • Quiet operation
  • Fully compliant with ATX v
  • Highly efficient at light loads
  • Long hold-up time
  • Low inrush currents
  • Magnetic Levitation fan
  • Loads of cables and connectors
  • Fully modular
  • year warranty

Against

  • High OCP triggering points on the minor rails
  • Transient response at V could be better
  • In-cable capacitors
  • Small distance between peripheral connectors

Tom's Hardware Verdict

Corsair managed to improve the already great RMx, offering even higher performance and a magnetic levitation fan.

Pros

  • + Full power at 47 degrees Celsius
  • + High overall performance
  • + Quiet operation
  • + Fully compliant with ATX v
  • + Highly efficient at light loads
  • + Long hold-up time
  • + Low inrush currents
  • + Magnetic Levitation fan
  • + Loads of cables and connectors
  • + Fully modular
  • + year warranty

Cons

  • - High OCP triggering points on the minor rails
  • - Transient response at V could be better
  • - In-cable capacitors
  • - Small distance between peripheral connectors

It is tough to upgrade something that's already quite good. But Corsair managed to do so with the RMx power supply, improving the efficiency at light loads, adding one more EPS connector, and using a top-notch magnetic levitation fan. This is a product worthy of our list of the best power supplies. Its competitors include the XPG Core Reactor W and the similar capacity Cooler Master V Gold V2 model. The more affordable Corsair RM, which is close in performance to the RMx, is another fine option in this category.  

Corsair's RMx line is among the most popular in today's mid-segment PSU market, so updating was a daunting task.

The use of a magnetic levitation fan is a great asset. The rifle bearing used in the previous generation RMx line was good, but there is no comparison with the ML fan that the new units utilize; Rifle and fluid dynamic bearings cannot cope with high operating temperatures. The only problem is the more aggressive fan profile, but updates from Corsair mean the new RMx batches have lower average noise output than the initial production units. 

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Product Photos

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The RMx () is the strongest member of the line, with enough power to handle a strong gaming system or a video editing workstation. To support the ultra-high-end mainboard, Corsair equipped it with three EPS connectors, something that's hard to find in today's market, even in stronger PSUs. The fully modular cable design is a must in this price range, and the same goes for the ten-year warranty, from the moment all competing offerings are supported by equally long warranty periods. Lastly, the PSU's dimensions are normal with mm length, so there won't be any compatibility issues with ATX cases. 

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Product Photos

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Specifications

Manufacturer (OEM)

CWT

Max. DC Output

W

Efficiency

80 PLUS Gold, Cybenetics Gold (%)

Noise

Cybenetics A- ( dB[A])

Modular

&#; (Fully)

Intel C6/C7 Power State Support

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Operating Temperature (Continuous Full Load)

0 - 50°C

Over Voltage Protection

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Under Voltage Protection

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Over Power Protection

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Over Current (+12V) Protection

&#;

Over Temperature Protection

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Short Circuit Protection

&#;

Surge Protection

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Inrush Current Protection

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Fan Failure Protection

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No Load Operation

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Cooling

mm Magnetic Levitation Fan (NRML)

Semi-Passive Operation

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Dimensions (W x H x D)

x 85 x mm

Weight

kg ( lb)

Form Factor

ATX12V v, EPS

Warranty

10 Years

Power Specifications

RailV5V12V5VSBV
Max. PowerAmps20203
Watts15
Total Max. Power (W)

Cables & Connectors

DescriptionCable CountConnector Count (Total)GaugeIn Cable Capacitors
ATX connector 20+4 pin (mm)11AWGYes
4+4 pin EPS12V (mm)3318AWGYes
6+2 pin PCIe (mm+mm) 24AWGYes
SATA (mm+mm+mm+mm)2818AWGNo
SATA (mm+mm+mm)2618AWGNo
4-pin Molex (mm+mm+mm+mm)1418AWGNo
AC Power Cord (mm) - C13 coupler1118AWG-

The cables are long enough, and it is impressive to see three EPS and four PCIe available. There is no need for more PCIe, given that the majority of users have a single graphics card installed. The only letdown is the small distance between the peripheral connectors. 

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Cable Photos

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Component Analysis

We strongly encourage you to have a look at our PSUs article, which provides valuable information about PSUs and their operation, allowing you to better understand the components we're about to discuss.

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Manufacturer (OEM)CWT
PCB TypeDouble Sided
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Transient Filter4x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush ProtectionNTC Thermistor SCK (3 Ohm) & Relay
Bridge Rectifier(s)

2x GBU (V, 15A @ °C)

APFC MOSFETs

2x Vishay SiHF30N60E (V, 18A @ °C, Rds(on): Ohm)

APFC Boost Diode

1x On Semiconductor FFSPA (V, 8A @ °C)

Bulk Cap(s)

2x Nippon Chemi-Con (V, uF each or uF combined, 2,h @ °C, KMW)

Main Switchers

2x On Semiconductor FCPFN60E (V, A @ °C, Rds(on): Ohm)

APFC Controller

Champion CMUNX & Champion CM03X

Resonant ControllerChampion CUVAC
Topology

Primary side: APFC, Half-Bridge & LLC converter
Secondary side: Synchronous Rectification & DC-DC converters

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+12V MOSFETs6x On Semiconductor NTMFS5CN (40V, A @ °C, Rds(on): mOhm)
5V & V

DC-DC Converters: 2x UBIQ QMM6 (30V, 61A @ °C, Rds(on): mOhm) & 2x UBIQ QNM6N (30V, 70A @ °C, Rds(on): mOhm)
PWM Controllers: UPI Semi uPP

Filtering Capacitors

Electrolytic: 7x Nippon Chemi-Con (,h @ °C, KZE), 7x Nippon Chemi-Con (,h @ °C, KY), 1x Rubycon (,h @ @ °C, YXJ)
Polymer: 37x FPCAP

Change Over Switch1x Sync Power SPN MOSFET (30V, 57A @ °C, Rds(on): mOhm)
Supervisor ICWeltrend WTR (OVP, UVP, SCP, PG)
Fan ControllerMicrochip PIC16F
Fan ModelCorsair NRML (mm, 12V, A, Magnetic Levitation Bearing Fan)
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Rectifiers1x PSL SBR (45V, 10A) & IPS ISD04N65A (V, A @ °C, Rds(on): Ohm)
Standby PWM ControllerOn-Bright OB
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Overall Photos

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Channel Well Technology (CWT) remains the OEM of the RMx line, and it did a great job under Corsair's strict supervision. The platform has some differences from the older one to provide increased efficiency at light loads and support for alternative sleep modes. The most important change is the new fan, with ML bearings. These fans do not come cheap, so it is a nice surprise that Corsair decided to use them in the new RMx line. 

The build quality is good overall. Corsair used Japanese capacitors on both primary and secondary sides, and known manufacturers provide the FETs. 

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Transient filter

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The transient/EMI filter has all necessary parts and it does a good job, in restricting EMI emissions. 

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Bridge rectifiers

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The two powerful bridge rectifiers are more than enough to handle the max power that this platform can deliver. 

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APFC converter

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The APFC converter uses two Vishay FETs and a single boost diode, by On Semiconductor. These are high-quality parts. 

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Main FETs and primary transformer

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The main switching FETs, provided by Infineon, are installed into a half-bridge topology. An LLC resonant converter is also used to boost efficiency. 

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12V FETs and VRMs

Sours: https://www.tomshardware.com/reviews/corsair-rmxpower-supply-review
Corsair RM850X - Alimentación de calidad para tu PC

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Corsair 850w power supply

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Corsair RM850 850W PSU 2020 - Unboxing

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