
EFFICIENCY AND NOISE
LEVEL CERTIFICATIONS
www.cybenetics.com
Evaluation Report
DUT INFORMATION
Brand Corsair
Manufacturer (OEM) Channel Well Technology
Series RM
Model Number RM850 (2019) (Sample #2)
Serial Number 19027122000038940012
DUT Notes CP-9020196
DUT SPECIFICATIONS
Rated Voltage (Vrms) 100-240
Rated Current (Arms) 10-5
Rated Frequency (Hz) 47-63
Rated Power (W) 850
Type ATX12V
Cooling
Semi-Passive Operation ✓
Cable Design Fully Modular
Corsair RM850 (2019) (Sample #2)
140mm Sleeve Bearing Fan
(HA1425M12F-Z)
POWER SPECIFICATIONS
Rail 3.3V 5V 12V 5VSB -12V
Max. Power
Total Max. Power (W) 850
Amps 20 20 70.8 3 0.3
Watts 150 849.6 15 3.6
CABLES AND CONNECTORS
Modular Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (610mm) 1 1 18-20AWG No
4+4 pin EPS12V (650mm) 2 2 18AWG No
6+2 pin PCIe (600mm+150mm) 3 6 16-18AWG No
SATA (460mm+110mm+110mm+110mm) 3 12 18AWG No
4 pin Molex (450mm+100mm+100mm+100mm) 1 4 18AWG No
AC Power Cord (1420mm) - C13 coupler 1 1 16AWG -
All data and graphs included in this test report can be used by any individual on the following conditions:
› It should be mentioned that the test results are provided by Cybenetics
› The link to the original test results document should be provided in any case
PAGE 1/8
Cybenetics offers the ETA and Lambda voluntary certification programs, through which the efficient
and silent power supplies are promoted
info@cybenetics.com
4004 MESA GEITONIA, LIMASSOL, CYPRUS

EFFICIENCY AND NOISE
LEVEL CERTIFICATIONS
www.cybenetics.com
Evaluation Report
Corsair RM850 (2019) (Sample #2)
RESULTS
Test Date 04-03-2019
Cybenetics ID # 663
Temperature Range (°C /°F) 30-32 / 86-89.6
Average Efficiency 90.727
Efficiency With 10W (≤500W) or 2% (>500W) Load -115V 78.436
Average Efficiency 5VSB 76.773
Standby Power Consumption (W) -115V 0.0392914
Standby Power Consumption (W) -230V 0.0712672
Average PF 0.964
ErP Lot 3/6 Ready ✓
(EU) No 617/2013 Compliance ✓
Avg Noise Output 25.68
Efficiency Rating (ETA) ETA-A
Noise Rating (LAMBDA) LAMBDA-A-
TEST EQUIPMENT
Chroma 6314A x2
Electronic Loads
AC Sources Chroma 6530, Chroma 61604, Keysight AC6804B
Power Analyzers N4L PPA1530 x2, N4L PPA5530
Oscilloscopes Picoscope 4444 & 3424, Keysight DSOX3024A, Rigol DS2072A
Voltmeter Keithley 2015 THD 6.5 Digit
Sound Analyzer Bruel & Kjaer 2250-L G4
Microphone Bruel & Kjaer Type 4955-A, Bruel & Kjaer Type 4189
Data Loggers Picoscope TC-08 x2, Labjack U3-HV x2
All data and graphs included in this test report can be used by any individual on the following conditions:
› It should be mentioned that the test results are provided by Cybenetics
› The link to the original test results document should be provided in any case
63123A x6
63102A
63101A
Chroma 63601-5 x4
Chroma 63600-2 x2
63640-80-80 x20
63610-80-20 x2
PAGE 2/8
Cybenetics offers the ETA and Lambda voluntary certification programs, through which the efficient
and silent power supplies are promoted
info@cybenetics.com
4004 MESA GEITONIA, LIMASSOL, CYPRUS

EFFICIENCY AND NOISE
LEVEL CERTIFICATIONS
www.cybenetics.com
Evaluation Report
EFFICIENCY GRAPH
Corsair RM850 (2019) (Sample #2)
INFO
This graph depicts the PSU’s efficiency throughout
its entire operational range. For the generation of
the efficiency and noise graphs we set our loaders
to auto mode through our custom-made software
before trying thousands of possible load
combinations
NOISE GRAPH
INFO
The PSU’s noise in its entire operational range and
under 30-32 °C ambient is depicted in this graph.
The X axis represents the load on the +12V rail(s)
while the Y axis is the load on the minor rails
All data and graphs included in this test report can be used by any individual on the following conditions:
› It should be mentioned that the test results are provided by Cybenetics
› The link to the original test results document should be provided in any case
Cybenetics offers the ETA and Lambda voluntary certification programs, through which the efficient
and silent power supplies are promoted
PAGE 3/8
info@cybenetics.com
4004 MESA GEITONIA, LIMASSOL, CYPRUS