Corsair RM850x review

PSU Tier List

Have you ever found yourself frustrated with noisy power supplies that disrupt your work or gaming experience? The constant hum and whir as you try to concentrate can be incredibly distracting and hinder your productivity. Well, worry no more, because the Corsair RM850x (2021) Fully Modular ATX Power Supply is here to solve your problem.


This is a Tier A Power Supply

What does that mean?

A Tier A power supply is typically considered the best power supply you can buy, according to our power supply tier list.

Power supplies in Tier A are the power supplies we recommend purchasing, if you're reading this review because you're wondering if this is a good power supply to buy, the answer is yes!


In a recent review, one satisfied customer praised the Corsair RM850x for its exceptional performance and low noise levels. They described how the 135mm ML fan with magnetic levitation bearing and custom engineered rotors provided high performance while ensuring a quiet operation. As someone who has struggled with noisy power supplies in the past, you can relate to the frustration, but hearing this positive feedback gives you hope. You are eager to learn more about the features and benefits of the Corsair RM850x and how it can improve your overall experience.

The Corsair RM850x (2021) Fully Modular ATX Power Supply is truly a game-changer. With its fully modular design, you only need to connect the cables that your system requires, minimizing clutter and maximizing efficiency. The use of 100 percent industrial-grade Japanese capacitors ensures unwavering power and reliability, giving you peace of mind. The support for Modern Standby sleep mode means you can wake your system from sleep in a blink of an eye, saving you precious time. Additionally, the zero RPM fan mode ensures near-silent operation at low to medium loads, allowing you to focus on your work without any distractions. With resonant LLC topology and DC-to-DC conversion, this power supply provides clean and consistent power, reducing coil whine and enabling more energy-efficient sleep states. To top it all off, the Corsair RM850x comes with a ten-year warranty, proving the manufacturer’s confidence in its durability and performance.

Learn more about the Corsair RM850x (2021) Fully Modular ATX Power Supply - 80 PLUS Gold - Low-Noise Fan - Zero RPM - Black here.

Features and Benefits

The Corsair RM850x (2021) Fully Modular ATX Power Supply offers a range of features and benefits that make it an excellent choice for powering your system.

Efficient and Quiet Operation

One of the standout features of this power supply is its 80 PLUS Gold certification, ensuring high energy efficiency and reduced power consumption. This means that less energy is wasted as heat, resulting in lower electricity bills and a more environmentally friendly operation.

The 135mm ML fan with a magnetic levitation bearing and custom engineered rotors not only helps to keep the power supply cool but also ensures low noise levels. This is especially important for those who value a quiet computing environment. The fan operates in zero RPM mode under low to medium loads, allowing for near-silent operation.

Fully Modular Design

The fully modular design of the Corsair RM850x allows you to connect only the cables that are necessary for your specific system configuration. This not only helps with cable management and airflow but also reduces clutter inside your PC case.

Superior Reliability and Longevity

This power supply is built with 100 percent industrial-grade, 105-degree Celsius rated Japanese capacitors. These capacitors ensure unwavering power delivery and exceptional reliability, even under demanding conditions. With a ten-year warranty, you can have peace of mind knowing that Corsair stands behind the quality of their product.

Advanced Features for Enhanced Efficiency

The Corsair RM850x supports Modern Standby sleep mode, which enables extremely fast wake-from-sleep times and better low-load efficiency. This is particularly beneficial for those who frequently use sleep or hibernate modes and want their system to quickly return to an active state.

The resonant LLC topology with DC-to-DC conversion provides clean and consistent power delivery, reducing coil whine and enabling the use of more energy-efficient sleep states. These features not only contribute to quieter operation but also promote energy savings.

Ways to Use It

The Corsair RM850x has a wide range of uses and can be utilized in various scenarios. Here are a few examples:

Powering High-Performance Gaming Systems

Whether you’re building a gaming rig or upgrading an existing one, the Corsair RM850x is an ideal power supply option. Its high efficiency rating, reliable capacitors, and low-noise operation make it suitable for powering high-performance graphics cards and motherboards.

Workstations and Content Creation PCs

If you’re involved in content creation, video editing, or any other CPU and GPU-intensive tasks, the Corsair RM850x can provide the stable and efficient power supply needed to support demanding workloads.

Custom PC Builds

For those who enjoy building their own PCs, the fully modular design of the Corsair RM850x makes cable management a breeze. It allows you to connect only the necessary cables, resulting in a clean and organized build. The power supply’s sleek black design also complements a variety of PC case aesthetics.

Corsair RM850x (2021) Fully Modular ATX Power Supply - 80 PLUS Gold - Low-Noise Fan - Zero RPM - Black

Learn more about the Corsair RM850x (2021) Fully Modular ATX Power Supply - 80 PLUS Gold - Low-Noise Fan - Zero RPM - Black here.

Product Specifications

Specifications Details
Power Supply Type ATX
Wattage 850 Watts
80 PLUS Certification Gold
Fan Size 135mm ML
Modular Design Fully Modular
Japanese Capacitors 100 percent Industrial-grade, 105 degree Celsius rated
Continuous Output Rated Temp 50°C
Warranty 10-year warranty

Who Is It For

The Corsair RM850x is suitable for a range of users, including:

  • Gamers
  • PC enthusiasts
  • Content creators
  • System builders

Whether you’re looking for a reliable power supply for your gaming rig or need the modular design for a custom PC build, the Corsair RM850x caters to these needs.

Corsair RM850x (2021) Fully Modular ATX Power Supply - 80 PLUS Gold - Low-Noise Fan - Zero RPM - Black

Pros and Cons

Pros:

  • High energy efficiency with 80 PLUS Gold certification
  • Fully modular design for improved cable management
  • Low-noise operation with zero RPM fan mode
  • Exceptional reliability with industrial-grade Japanese capacitors
  • Supports Modern Standby sleep mode for fast wake-from-sleep times
  • Resonant LLC topology reduces coil whine and enables energy-efficient sleep states
  • Ten-year warranty for peace of mind

Cons:

  • Might be overkill for lower-power system configurations

FAQ’s

Q: Is the Corsair RM850x compatible with my graphics card and motherboard? A: Yes, the Corsair RM850x is compatible with modern graphics cards and motherboards. It features an EPS12V connector for this purpose.

Q: Can the zero RPM fan mode be manually adjusted? A: No, the zero RPM fan mode is designed to operate automatically based on the load of the power supply.

Q: Can I use the Corsair RM850x for multiple systems? A: While it is possible to power multiple systems with the Corsair RM850x, it is recommended to use separate power supplies for better efficiency and stability.

Corsair RM850x (2021) Fully Modular ATX Power Supply - 80 PLUS Gold - Low-Noise Fan - Zero RPM - Black

What Customers Are Saying

Customers who have purchased the Corsair RM850x generally praise its performance, reliability, and modular design. They appreciate the low-noise operation and the ease of cable management that the fully modular design offers. Some particularly mention its compatibility with high-end graphics cards and its overall efficiency.

Overall Value

Considering its high energy efficiency, reliable capacitors, and the convenience of a fully modular design, the Corsair RM850x offers excellent value for the price. It eliminates the need for unnecessary cable clutter, provides clean and consistent power delivery, and ensures low-noise operation.

Corsair RM850x (2021) Fully Modular ATX Power Supply - 80 PLUS Gold - Low-Noise Fan - Zero RPM - Black

Tips and Tricks for Best Results

  • Before installing the Corsair RM850x, ensure that you have the appropriate power requirements for your system. It is crucial to have a stable power source for optimal performance.
  • Take advantage of the fully modular design to minimize cable clutter and improve airflow within your PC case.
  • Keep the power supply’s fan and vents clean from dust and debris to maintain optimal cooling performance.

Conclusion

Product Summary: The Corsair RM850x (2021) Fully Modular ATX Power Supply is a reliable and efficient choice for powering your high-performance system. Its fully modular design, low-noise operation, and compatibility with modern components make it an excellent investment. With a ten-year warranty and superior reliability, this power supply offers peace of mind and long-lasting performance.

Final Recommendation: If you’re looking for a high-quality power supply that combines efficiency, reliability, and a modular design, the Corsair RM850x is undoubtedly worth considering. Whether you’re a gamer, PC enthusiast, or creative professional, this power supply can meet your power needs while providing a quiet and efficient computing experience.

Learn more about the Corsair RM850x (2021) Fully Modular ATX Power Supply - 80 PLUS Gold - Low-Noise Fan - Zero RPM - Black here.