Corsair RM850, RM Series, 80 Plus Gold Certified, 850 W Fully Modular ATX Power Supply - Black

Product Information

It’s built with low-noise capacitors and transformers, and Zero RPM Fan Mode ensures that the fan doesn’t even spin until the power supply is under heavy load. Modern Standby is a upcoming feature for Windows 10 that vastly improves your PC's sleep and wake functionality.

The ambient temperature of the room alone should be enough to maintain a lower operating temperature, so even prolonged operation at higher loads should give the fan controller adequate time to turn on the fan. However, there is a catch: You can only monitor the fan speed and not control the fan’s operation, which would definitely be useful. You can use only the cables you need, and leave the rest in the box for fast, easy, and great-looking builds. Thanks to recent feedback provided by an early reviewer, we have discovered a PSU fan operation issue that can be triggered with the RM750 and RM850W under highly unusual operating conditions. Corsair RM series power supplies are built with the highest quality components to deliver 80 Plus Gold efficient power to your PC.Well, an 850W is quite a lot of power for the rig you're powering, but you can try running Furmark and Prime95 together at the same time to put a load on the PSU and if the fan turns on, you're good.

This particular setup will probably cause some internal competition, but such competition always benefits the end consumer. The Corsair RM series power supplies are designed to run without active cooling for up to 40% load at typical room temperatures (25°C, or 77°F) and are capable of continuously outputting 100% of output capability at ambient temperatures of up to 40°C (104°F). For consistent, reliable power and superb electrical performance, each RMe Series power supply features a robust resonant LLC topology with DC-DC conversion and 105° rated industrial-grade capacitors. CORSAIR provides a ten-year warranty on all RM Series power supplies; your guarantee of reliable operation that will last across several system builds.The Cybenetics organization measures efficiency and noise levels across the PSU’s entire operational range, using more than 1,450 different load combinations. A 120mm rifle bearing fan with a specially calculated fan curve keeps fan noise down, even when operating at full load. Please consider the total power consumption of the entire system when choosing compatible power supply units. In an effort to improve our products for all of our users, we have updated the RM750 and RM850 to resolve this issue. Tried to make a ticket and couldn't because it isn't even in the system, but luckily had a chat support person assist with things so far and start a ticket on your end.