Table of Contents
The Corsair RM850x Power Supply is a popular choice among PC builders and gamers who seek reliable power delivery combined with a compact design. This review explores its features, performance, and suitability for various builds.
Overview of the Corsair RM850x
The Corsair RM850x is part of Corsair’s RMx series, known for efficiency, quiet operation, and durability. With an 850-watt capacity, it provides ample power for high-end gaming setups, content creation, and overclocking.
Key Features
- 80 PLUS Gold Certified: Ensures high efficiency, reducing power consumption and heat.
- Fully Modular Design: Allows for easy cable management and cleaner builds.
- Compact Size: Smaller than many power supplies with similar wattage, fitting easily into various cases.
- Premium Components: Japanese capacitors for enhanced reliability and longevity.
- Quiet Operation: Zero RPM fan mode during low to moderate loads.
Performance and Testing
The RM850x delivers stable and consistent power output across all rails, making it ideal for demanding applications. During testing, it maintained high efficiency levels close to 90%, earning its Gold certification. The fully modular design simplifies cable management, improving airflow and aesthetics.
The fan operates quietly, thanks to the Zero RPM mode, which keeps noise levels minimal during typical use. Under heavy loads, the fan ramps up smoothly without excessive noise, maintaining thermal stability.
Compatibility and Installation
The compact form factor makes the RM850x compatible with a wide range of cases, including smaller ATX and mini-ITX builds. Installation is straightforward due to the modular cables and clear labeling. It supports all modern connectors required for high-performance components.
Pros and Cons
- Pros:
- High efficiency and reliable power delivery
- Compact size fits in small cases
- Fully modular cables for easy management
- Quiet operation with Zero RPM fan mode
- Durable, high-quality components
- Cons:
- Price may be higher than non-modular or lower-wattage units
- Limited to 850W, which may not suit ultra-high-end multi-GPU setups
Conclusion
The Corsair RM850x Power Supply offers excellent performance, efficiency, and a compact design, making it a top choice for gamers and PC enthusiasts who need reliable power in limited space. Its high-quality components and quiet operation justify its premium price for those seeking peak performance in a small form factor.