Corsair RM850x V2 PSU Review: Smaller And Quieter!

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Load Regulation, Hold-Up Time & Inrush Current

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Test #12V5V3.3V5VSBDC/AC (Watts)EfficiencyFan SpeedPSU NoiseTemps (In/Out)PF/AC Volts
15.186A1.984A1.991A0.996A84.77386.891%0 RPM<6.0 dB(A)48.80°C0.980
12.185V5.036V3.314V5.013V97.56338.57°C115.10V
211.397A2.973A2.988A1.196A169.67890.062%0 RPM<6.0 dB(A)49.70°C0.990
12.181V5.034V3.311V5.009V188.40139.09°C115.09V
317.965A3.477A3.502A1.396A254.87591.367%0 RPM<6.0 dB(A)50.95°C0.994
12.180V5.031V3.308V5.002V278.95840.03°C115.09V
424.537A3.975A3.992A1.601A339.76591.193%610 RPM10.2 dB(A)40.46°C0.990
12.169V5.028V3.305V4.994V372.57851.72°C115.09V
530.782A4.974A4.996A1.801A424.68890.854%610 RPM10.2 dB(A)40.66°C0.990
12.157V5.024V3.302V4.989V467.43852.25°C115.08V
637.033A5.975A5.999A2.006A509.68090.322%610 RPM10.2 dB(A)41.59°C0.991
12.148V5.023V3.299V4.985V564.29253.36°C115.08V
743.285A6.977A7.004A2.205A594.65889.629%633 RPM10.9 dB(A)43.15°C0.993
12.142V5.020V3.296V4.980V663.46855.47°C115.08V
849.544A7.970A8.011A2.411A679.56088.701%902 RPM23.2 dB(A)44.31°C0.994
12.134V5.019V3.295V4.975V766.12357.18°C115.09V
956.244A8.474A8.533A2.410A764.68387.790%1130 RPM30.4 dB(A)45.39°C0.995
12.127V5.018V3.293V4.975V871.03858.68°C115.08V
1062.684A8.980A9.022A3.022A849.43186.877%1330 RPM35.1 dB(A)46.03°C0.996
12.120V5.015V3.290V4.958V977.73959.55°C000.00V
1169.730A8.981A9.029A3.025A934.34085.807%1450 RPM37.2 dB(A)46.85°C0.996
12.113V5.013V3.288V4.956V1088.88460.84°C115.08V
CL10.099A18.029A18.001A0.004A151.42181.633%785 RPM18.1 dB(A)44.11°C0.991
12.162V5.030V3.306V5.078V185.48956.94°C115.11V
CL270.788A1.002A1.001A1.002A871.70487.227%1320 RPM33.8 dB(A)45.76°C0.996
12.126V5.017V3.295V4.994V999.35159.07°C115.08V
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Aris Mpitziopoulos
Contributing Editor

Aris Mpitziopoulos is a contributing editor at Tom's Hardware, covering PSUs.

  • parkerygc8
    Sweet, first review of this I've seen. Thanks.
    Reply
  • leclod
    I didn't go into detail, but I wonder what's the use of that Gold PSU when there's a Seasonic Focus Plus Platinum 750 for a similar price ?
    Reply
  • Aris_Mp
    Gold, Platinum, it doesn't really matter at this efficiency point. What matters the most, in my opinion at least, is noise output now besides the basic (reliability and overall performance).
    Reply
  • powernod
    At last some scoring at the review conclusion!! I always considered the lack of score as Tom's greater weakness about their reviews !!
    Reply