Corsair RM850x ATX V3.1 (3rd Gen 2024) Review

1. Introduction2. Bundle & Cabling3. External4. Internal5. Testing Methodology and Results6. Closing Thoughts7. View All Pages

Corsair are using the NR140HP fan inside this power supply. It is a 140mm unit and rated 12V DC 0.33A. This is a high grade fluid dynamic bearing fan that is quiet at lower speeds.

This power supply is produced for Corsair by Channel Well Technology (CWT). This has been a long, and quite fruitful relationship between the two companies. This unit is a modern design implementation – half bridge topology  with an APFC converter and an LLC resonant converter on the primary side. The secondary side adopts a synchronous rectification system for the 12V rail and a pair of DC-DC converters for the minor rails.

We can see that the design adopts large heatsinks to help keep temperatures under control. All of the capacitors on the primary and secondary side are high quality Japanese and the two primary capacitors are 105c rated, Nippon Chemi Con, from their KMW series. They are rated 400V 470uF for a total of 940uF.

Soldering quality is high across the PCB.

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