We would like to thank Corsair for supplying the review sample.
When it comes to PSUs, low noise output is to many just as significant as high performance and efficiency. Corsair's initial offering for those who put an emphasis on both was the RM line with PSUs that are incredibly quiet in even the toughest conditions. During Computex 2015, the new RMi line was introduced. It brings with it some major upgrades we will list in the table below. The new RMi units come in four versions with capacities ranging from 650 W to 1000 W. This means that the RM450 and RM550 are for the moment left without successors, which is probably due to the fact that Corsair is looking to keep both lines active.
All RMi PSUs are 80 PLUS Gold certified to avoid competing with Corsair's Platinum HXi units and feature a fully modular cabling design and a semi-passive operation. The major differences to previous RM units are the longer warranty of seven years, exclusive use of Japanese capacitors, a 50°C rating for continuous full-load delivery, the FDB fan, and an upgraded digital circuit with more functionality. All RMi units also provide the ability to monitor power in, out, efficiency, output voltages, and temperatures, all while allowing for the creation of a custom fan profile to match your needs. This is a major upgrade to the options previous RM PSUs offered through the Corsair Link software.
The strongest RMi member with 1 kW maximum power will be the main subject of today's review. Corsair states the unit to be optimized for high performance and very low noise output. Given our experience with the RM1000, which is among the quietest high-capacity PSUs we have ever tested, we have absolutely no reason not to take Corsair's claim seriously. We, after all, have the equipment to measure noise output levels darn accurately and will make a point of comparing the RM1000i to the older RM1000.