In the realm of PC building, the power supply unit (PSU) stands as the unsung hero, silently powering your system and ensuring its stability. Among the plethora of PSUs available, the CORSAIR RM850x emerges as a formidable contender, offering an unparalleled blend of efficiency, reliability, and performance.
Product Details
The CORSAIR RM850x is an 850-watt, fully modular ATX power supply that boasts an impressive 80 PLUS Gold certification, guaranteeing up to 92% energy efficiency at typical loads. Its compact form factor (150mm x 160mm x 86mm) makes it compatible with most ATX cases, while its fully modular design allows for easy cable management and a clutter-free build.
Features and Benefits
Exceptional Efficiency: The 80 PLUS Gold certification ensures minimal energy loss, reducing your electricity bills and contributing to a greener environment.
Ultra-Low Noise: The RM850x employs a 140mm low-noise fan that operates in Zero RPM mode at low loads, eliminating audible fan noise for a whisper-quiet computing experience.
Unparalleled Durability: The PSU is built with high-quality Japanese capacitors and other premium components, ensuring exceptional longevity and reliability.
Comprehensive Protection: The RM850x features multiple protection circuits, including over-voltage, under-voltage, over-current, short-circuit, and over-temperature protection, safeguarding your system from potential damage.
Aesthetics and Design
The RM850x exudes a sleek and professional appearance with its matte black finish and subtle branding. Its compact size and fully modular design contribute to a clean and organized build, enhancing the overall aesthetics of your PC.
Pros and Cons
Pros:
路 Exceptional efficiency (80 PLUS Gold)
路 Ultra-low noise (Zero RPM mode)
路 Unparalleled durability (Japanese capacitors)
路 Comprehensive protection circuits
路 Fully modular design for easy cable management
Cons:
路 Premium price tag
路 Limited warranty (7 years)
Comparison to Similar Products
To provide a comprehensive perspective, let’s compare the CORSAIR RM850x to four other highly rated PSUs in the same wattage range:
| Feature | CORSAIR RM850x | Seasonic Focus GX-850 | EVGA SuperNOVA 850 G6 | be quiet! Dark Power Pro 12 850W | Thermaltake Toughpower GF1 850W |
|---|---|---|---|---|---|
| Wattage | 850W | 850W | 850W | 850W | 850W |
| Efficiency | 80 PLUS Gold | 80 PLUS Gold | 80 PLUS Gold | 80 PLUS Titanium | 80 PLUS Gold |
| Noise Level | Ultra-low (Zero RPM) | Low | Low | Ultra-low (Zero RPM) | Low |
| Modularity | Fully modular | Fully modular | Fully modular | Semi-modular | Fully modular |
| Warranty | 7 years | 10 years | 10 years | 10 years | 10 years |
| Price | $149.99 | $149.99 | $159.99 | $199.99 | $149.99 |
As you can see from the table:
路 The RM850x matches the Seasonic Focus GX-850 and Thermaltake Toughpower GF1 850W in terms of price and efficiency.
路 The be quiet! Dark Power Pro 12 850W offers the highest efficiency (80 PLUS Titanium) but comes with a higher price tag.
路 The EVGA SuperNOVA 850 G6 has a slightly higher price but offers a longer warranty (10 years).
Representative Product Reviews
Positive Reviews:
路 “The CORSAIR RM850x is an excellent power supply. It’s efficient, quiet, and reliable. I’ve been using it for over a year now and have had no problems.” – Amazon Customer
路 “I’ve built several PCs over the years and the RM850x is one of the best PSUs I’ve ever used. It’s incredibly quiet and efficient, and the fully modular design makes it a breeze to install.” – Newegg Customer
路 “I’m a huge fan of CORSAIR products and the RM850x is no exception. It’s a top-notch power supply that I highly recommend.” – Best Buy Customer
Real-World Usage Comments:
路 “I’ve been using the RM850x in my gaming PC for over six months now and it’s been rock solid. I’ve never had any issues with it and it’s always been quiet.” – Reddit User
路 “I recently upgraded my PC to a new motherboard and CPU and the RM850x handled the increased power draw without a hitch. It’s a great power supply for high-performance systems.” – Tom’s Hardware Forum User
路 “I’ve been using the RM850x in my server for over a year now and it’s been running 24/7 without any problems. It’s a reliable and efficient power supply that I trust to keep my server up and running.” – ServerFault User
Conclusions
The CORSAIR RM850x is an exceptional power supply that delivers an unbeatable combination of efficiency, reliability, and performance. Its ultra-low noise operation, fully modular design, and comprehensive protection circuits make it an ideal choice for high-performance gaming PCs, workstations, and servers. While its premium price tag may deter some budget-conscious buyers, the RM850x offers exceptional value for those seeking the best possible power supply for their system.
Buying Guide
When selecting a power supply, consider the following factors:
路 Wattage: Determine the power requirements of your system using an online calculator or by consulting your motherboard and graphics card specifications.
路 Efficiency: Choose a power supply with a high efficiency rating (80 PLUS Gold or higher) to minimize energy loss and reduce your electricity bills.
路 Noise Level: If noise is a concern, look for a power supply with a low-noise fan or Zero RPM mode.
路 Modularity: A fully modular power supply allows you to use only the cables you need, reducing clutter and improving airflow.
路 Warranty: Choose a power supply with a long warranty (7 years or more) for peace of mind.
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