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Corsair RM850 850-Watt 80 PLUS Gold Power Supply Review

Corsair RM850 850-Watt 80 PLUS Gold Power Supply Review
Corsair introduces its first non-digital power supplies integrated with Corsair Link. Let's take a look and see how it performs.
By: Zac O'Vadka | 80 PLUS Gold PSUs in Cases, Cooling & PSU | Posted: Oct 5, 2013 2:01 am
TweakTown Rating: 91%Manufacturer: Corsair





Up to this point, the only power supplies that we have seen that come with the ability to be controlled and monitored by software have been digital power supplies. We even have another unit on our test bench that is new to the market with its own software, but it is still a full digital unit. The digital units have proven to be some of the best on the market, but they often come at a price. The new RM series from Corsair helps bridge the gap a little.


It does this by adding the Corsair Link capability without being a full digital power supply. This will make the unit more cost effective to the consumer, but it may also mean that it simply doesn't perform like an enthusiast grade digital power supply.


Today we have the RM850 on our test bench, but the power supply is available in six different wattages from 450W to 1000W. The RM series is fully modular and also compatible with Corsair's individually sleeved cables which you can check out here. Let's see what the RM850 is made of.



Specifications, Availability and Pricing




The RM850 features a single 12V rail capable of 70.8A or 849.6W. Both the 3.3V and 5V rails are rated for 25A each with a combined maximum output of 150W. The 5VSB is rated for 3A or 15W. Maximum combined output for the Corsair RM850 is 850W.




The RM series isn't intended to be a flagship power supply for Corsair, but it does do a good job of filling out our Feature Summary. All protections are preset, which is something that we've come to expect from any power supply that bears Corsair's name on it. The RM850 is fully modular and features flat ribbon cables entirely. The RM850 is rated for 80 PLUS Gold efficiency. Finally, the RM850 is not certified for 100% continuous output at 50C, but Corsair does state it is rated for so at 40C.


The RM850 from Corsair has an MSRP of $149.99. This makes the Corsair RM850 very comparatively priced with other units on the market that have been out for some time. At the time of writing, Newegg seems to be the only place that has it in stock at the time of writing this article and they are currently $10 over MSRP, coming in with a price tag of $159.99. Corsair offers a five year warranty on the unit.

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