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

Product Information

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. Completely modular cables means you only connect the cables your system needs, and the wide range of included cables adds broad compatibility with modern graphics cards and motherboards. We have found that our power supplies are typically used in environments much lower than 40°C and tend to have some natural aspiration within the chassis that allows for some air movement, such as from a nearby graphics card or chassis fan, within the PSU housing, when temperatures exceed normal room temperatures. We have found that this normal aspiration can maintain Corsair’s Zero-RPM fan-less mode even at temperatures as high as 35°C (95°F) when only at 40% load for durations of up to 15 minutes.

Some direction on appropriate orientation of the PSU may be appropriate in the product documentation for this series. Powering an i5-4570, 2x4gb Vengeance Ram, a single GTX660, Asus Xonar Soundcard, 2 hard drives, 3 fans (one on Hyper 212 CPU cooler) spinning really (400 rpm) slowly. Nothing too elaborate.But also, that can't be your serial number. Can you take a pic? Reason being: The first two digits are the year (13 = 2013) and the next two are the week (52 = last week of the year), so 1355 is impossible. ;)

Flat cables are really nice and the hybrid fan is super quiet change my computers noise level completely. A 120mm rifle bearing fan with a specially calculated fan curve keeps fan noise down, even when operating at full load.and below have one thermistor while serial numbers greater than 1341 have the two (separate one for the fan). The Corsair RM850 is fully modular and optimized for silence and high efficiency. 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. And with a fan that’s custom-designed for low noise operation, it’s whisper-quiet even when it’s pushed hard. The Cybenetics organization measures efficiency and noise levels across the PSU’s entire operational range, using more than 1,450 different load combinations.