CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Corsair RM850e (ThermalProtect)
Serial Number4701
Lab IDCR85003250
Certification ID263250
  • Test Result Report ID: 26PS3250A
  • Certificate Issue Date: Apr 17, 2026
115V230V
Scheme: ETA-EMI PSU
115V230V
Scheme: LAMBDA PSU
Outside Validation Scope
Aristeidis Bitziopoulos, Certification Body General Manager

General Information

Test Equipment

Electronic Loads Chroma 63601-5 x2
Chroma 63600-2
Chroma 63640-80-80 x10
Chroma 63610-80-20
AC Sources Chroma 6530, APM SP300VAC4000W-P, GW Instek ASR-3500
Power Analyzers Rohde & Schwarz HMC8015 & NPA701
Oscilloscopes Picoscope 4444, Siglent SDS2104X PLUS
Sound Analyzer Bruel & Kjaer 2270 G4
Microphone Bruel & Kjaer Type 4955-A
Temperature Logger Picoscope TC-08
Tachometer UNI-T UT372
Multimeters Keysight 34465A
EMI Analyzer TekBox TBMR-110M-EU
Isolation Transformer 4kVA
UPS FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA
Testing Methodology Cybenetics PSU Test Protocol

DUT Information(Non-accredited measurements)

Product Identification Details
BrandCorsair
ModelRM850e (ThermalProtect)
OEM/ODMHEC
Serial Number4701
Product Specifications
Manufacturer-Provided Information
Rated Voltage (Vrms)100-240
Rated Current (Arms)5-10
Rated Frequency (Hz)47-63
Rated Power (W)850
Operating Temperature (Continuous Full Load) (°C)0 - 40
TypeATX12V
Cable DesignFully Modular
Warranty3 years
Cybenetics Measurements
Dimensions (W x H x D)150 x 85 x 140mm
Weight1.53 kg (3.37 lb)
Cooling120mm Rifle Bearing Fan (HA1225H12SF-Z)
Semi-Passive Operation✓
Cybenetics Testing Information
Lab IDCR85003250
Date of receiptMar 18, 2026
Testing DateApr 10, 2026
Report Issued DateApr 17, 2026
Engineer NameGeorgios Theodoros Sarimpalas
Authorized By the Laboratory Technical ManagerAristeidis Bitziopoulos
Signature

Cables and Connectors(Non-accredited measurements)

Modular Cables
Description Cable Count Connector Count (Total) Gauge Cable Type
ATX connector 24 pin (605mm) 1 1 16-20AWG Tinned Copper
4+4 pin EPS12V (740mm) 2 2 18AWG Tinned Copper
2x 6+2 pin PCIe (640mm) 2 2 16AWG Tinned Copper
6+2 pin PCIe (640mm) 1 1 18AWG Tinned Copper
12+4 pin PCIe (640mm) (600W) 1 1 16-28AWG Tinned Copper
SATA (440mm+100mm+100mm+100mm) 1 4 18AWG Tinned Copper
4-pin Molex (440mm+100mm+100mm+100mm) 1 4 18AWG Tinned Copper

Protection Features(Manufacturer)

Over Power Protection✓
Over Current (+12V) Protection✓
Over Temperature Protection✓
Short Circuit Protection✓
Surge Protection✓
Inrush Current Protection✓
Fan Failure Protection✗

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps202070.830
Watts150850150
Total Max. Power (W)850

Parts Description

General Data
Manufacturer (OEM) HEC
PCB Type Double-Sided
Primary Side
Transient Filter 2x Y caps, 3x X caps, 2x CM chokes, 1x MOV
Inrush Protection NTC Thermistor  SCK-056  (5 Ohm) & Relay
Bridge Rectifier(s) 2x GBU15KL (600V, 15A @ 100°C)
APFC MOSFETs 2x Great Power GP36S60YERD
APFC Boost Diode 1x Wolfspeed C6D08065A   (650V, 8A @ 155°C)
Bulk Cap(s) 1x Teapo (400V, 470uF, 2,000h @ 105°C,  LS )
Main Switchers 2x CR Micro CRJF99N65G2 (650V, 20A @ 100°C, Rds(on): 0.81 Ohm)
APFC Controller Champion  CM6500UNX  &
Champion CM03AX (reducing no load consumption)
Resonant Controller Champion  CM6901T6X
Topology Primary side: APFC, Half-Bridge & LLC Resonant converter
Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side
+12V MOSFETs 6x Pingwei PWC012N04ES (40V, 132A @ 100°C, Rds(on): 1.2 mOhm)
5V & 3.3V DC-DC Converters: 4x Potens Semiconductor PDC3906X (30V, 51A @ 100°C, Rds(on): 5.5 mOhm)
PWM Controller(s): 1x ANPEC  APW7159C
Filtering Capacitors

Electrolytic:
6x Teapo (1-3,000h @ 105°C,  SC ),
2x Nippon Chemi-con (2-5,000h @ 105°C, KZE )
1x Rubycon (4-10,000h @ 105°C, YXF )
Polymer:
12x Teapo, 10x CS(12Kuang Jin)

Supervisor IC Weltrend WT7527RT (OCP, OVP, UVP, SCP, PG)
Fan Controller Nuvoton  MS51FB9AE
Fan Model Hong Hua HA1225H12SF-Z (120mm, 12V, 0.58A, Rifle Bearing Fan)
5VSB Circuit
Rectifier 1x PS1060L SBR (60V, 10A)
Standby PWM Controller Excelliance MOS  EM8569D

Test Results

Temperature & Compliance Info

Temperature Range (°C /°F)28-32 / 82.4-89.6
ErP Lot 3/6 Ready✓
(EU) No 617/2013 Compliance✓
ALPM (Alternative Low Power Mode) compatible✓
ATX v3.1 PSU Power Excursion✓
Conducted Emissions EN 55032 & CISPR 32Passed

Performance Summary

Accredited
Average Efficiency (>1450 load combinations)89.189%
Average Noise Output (>1450 Load Combinations)18.98dBA
Average PF (>1450 Load Combinations)0.987
Efficiency With 10W (≤500W) or 2% (>500W) Load67.219%
Standby Power Consumption0.0533W
Non-Accredited
12V Ripple (Full Load)42.28mV
5V Ripple (Full Load)20.71mV
3.3V Ripple (Full Load)20.06mV
5VSB Ripple (Full Load)21.42mV
12V Load Regulation0.79%
5V Load Regulation0.66%
3.3V Load Regulation0.33%
5VSB Load Regulation2.25%
Inrush Current27.200A
Accredited
Average Efficiency (>1450 load combinations)91.162%
Average Noise Output (>1450 Load Combinations)18.61dBA
Average PF (>1450 Load Combinations)0.954
Efficiency With 10W (≤500W) or 2% (>500W) Load67.462%
Standby Power Consumption0.1045W
Non-Accredited
12V Ripple (Full Load)40.73mV
5V Ripple (Full Load)16.23mV
3.3V Ripple (Full Load)18.20mV
5VSB Ripple (Full Load)19.20mV
12V Load Regulation0.86%
5V Load Regulation0.88%
3.3V Load Regulation1.73%
5VSB Load Regulation2.46%
Inrush Current76.450A
12V Transient Response (200%)11.45V
5V Transient Response (200%)4.916V
3.3V Transient Response (200%)3.253V
5VSB Transient Response (200%)4.878V
Hold-Up Time & PWR_OK Signal17.10ms
AC Loss to PWR_OK Hold Up Time14.60ms
PWR_OK Inactive to DC Loss Delay2.50ms
PSU Timings: T1 (20% / 100%)49.0ms50.0ms
PSU Timings: T3 (20% / 100%)122.0ms122.0ms
OPP (30.24°C / 42.61°C)123.13%121.00%

Hold-Up Time & PWR_OK Signal

Hold-Up Time (ms)17.1
AC Loss to PWR_OK Hold Up Time (ms)14.6
PWR_OK Inactive to DC Loss Delay (ms)2.5

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.03 V 115.01 V 113.85 V 115.05 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.94 Hz 59.40 Hz 60.01 Hz 60.60 Hz PASS
Mains Voltage CF: 1.416 1.415 1.340 1.416 1.490 PASS
Mains Voltage THD: 0.13 % 0.11 % N/A 0.16 % 2.00 % PASS
Real Power: 0.053 W -0.004 W N/A 0.088 W N/A N/A
Apparent Power: 10.057 W 10.035 W N/A 10.077 W N/A N/A
Power Factor: 0.005 N/A N/A N/A N/A N/A
Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 230.09 V 230.07 V 227.70 V 230.11 V 232.30 V PASS
Mains Frequency: 50.00 Hz 50.00 Hz 49.50 Hz 50.00 Hz 50.50 Hz PASS
Mains Voltage CF: 1.415 1.415 1.340 1.416 1.490 PASS
Mains Voltage THD: 0.14 % 0.13 % N/A 0.16 % 2.00 % PASS
Real Power: 0.104 W 0.062 W N/A 0.163 W N/A N/A
Apparent Power: 32.797 W 32.762 W N/A 32.837 W N/A N/A
Power Factor: 0.003 N/A N/A N/A N/A N/A

Graphs

Efficiency Graph

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

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

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

Conducted Emissions EN 55032 & CISPR 32

NEUTRAL
PHASE

Indicative Performance

Efficiency under high ambient temperature

INFO

The PSU`s efficiency under high ambient temperatures with 115V and 230V input. For this graph the results of the 10-110% load regulation table are used

5VSB Efficiency

INFO

This graph depicts the efficiency levels of the 5VSB rail with 115V and 230V input

5VSB Efficiency (ERP LOT 3/6 & CEC)

Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.225W 63.33% 0.036
4.999V 0.354W 115.08V
2 0.09A 0.45W 74.24% 0.061
4.999V 0.606W 115.08V
3 0.55A 2.743W 81.612% 0.263
4.988V 3.363W 115.09V
4 1A 4.978W 81.52% 0.361
4.977V 6.106W 115.08V
5 1.5A 7.449W 81.516% 0.413
4.966V 9.139W 115.08V
6 3.001A 14.77W 79.622% 0.488
4.923V 18.549W 115.07V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.225W 56.263% 0.012
4.997V 0.4W 230.27V
2 0.09A 0.45W 66.538% 0.021
4.996V 0.676W 230.27V
3 0.55A 2.742W 79.266% 0.102
4.985V 3.458W 230.26V
4 1A 4.975W 80.242% 0.17
4.974V 6.201W 230.26V
5 1.5A 7.444W 80.497% 0.23
4.962V 9.247W 230.26V
6 3A 14.777W 80.333% 0.336
4.925V 18.395W 230.25V

Protection Features

OCP (Normal @ 26.9°C) 12V: 87.40A (123.45%), 12.055V
5V: 29.3A (146.50%), 5.014V
3.3V: 27.2A (136.00%), 3.305V
5VSB: 3.9A (130.00%), 4.901V
OCP (Hot @ 43.9°C) 12V: 85.80A (121.19%), 12.060V
5V: 28A (140.00%), 5.014V
3.3V: 25A (125.00%), 3.311V
5VSB: 3.9A (130.00%), 4.903V
OPP (Normal @ 30.2°C) 1046.61W (123.13%)
OPP (Hot @ 42.6°C) 1028.54W (121.00%)
OTP ✓ (92°C @ 12V Heatsink)
SCP 12V to Earth: ✓
5V to Earth: ✓
3.3V to Earth: ✓
5VSB to Earth: ✓
-12V to Earth: ✓
PWR_OK Proper Operation
UVP (Full Load @ 90V) ✓
UVP (No Damage @ 80V) ✓
Conducted Emissions EN55032 & CISPR 32 ✓
NLO ✓
Fan Failure Protection ✗
Thermal Protection @ 12V-2x6 cable ✓
SIP Surge: MOV
Inrush: NTC & Bypass Relay

Supplementary Tests (For Reference)

Typical Load Tests

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 5.228A 1.986A 2.004A 1.006A 85.007 87.111% 0 <6.0 49.59°C 0.972
12.127V 5.036V 3.293V 4.971V 97.585 40.27°C 115.08V
20% 11.474A 2.981A 3.005A 1.209A 169.948 90.543% 0 <6.0 52.95°C 0.987
12.119V 5.033V 3.295V 4.963V 187.698 40.78°C 115.05V
30% 18.074A 3.479A 3.506A 1.413A 254.957 91.434% 0 <6.0 56.26°C 0.983
12.112V 5.03V 3.294V 4.955V 278.839 41.37°C 115.01V
40% 24.687A 3.979A 4.008A 1.618A 340.047 91.585% 0 <6.0 61.06°C 0.986
12.105V 5.028V 3.293V 4.947V 371.299 41.86°C 114.98V
50% 30.948A 4.976A 5.008A 1.823A 424.865 91.229% 337 <6.0 42.22°C 0.989
12.096V 5.025V 3.295V 4.938V 465.716 60.78°C 114.96V
60% 37.204A 5.978A 6.007A 2A 509.258 90.794% 482 <6.0 42.94°C 0.99
12.084V 5.02V 3.296V 4.93V 560.896 62.59°C 114.92V
70% 43.539A 6.98A 7.004A 2.236A 594.709 90.21% 770 16.1 43.15°C 0.992
12.072V 5.016V 3.299V 4.921V 659.247 60.47°C 114.89V
80% 49.888A 7.981A 7.997A 2.34A 679.523 89.554% 994 25.1 43.7°C 0.993
12.060V 5.011V 3.301V 4.914V 758.79 60.77°C 114.86V
90% 56.647A 8.487A 8.485A 2.446A 764.944 88.829% 1440 36.6 44.1°C 0.994
12.048V 5.008V 3.3V 4.907V 861.149 60.56°C 114.82V
100% 63.152A 8.993A 9.005A 3.07A 849.753 87.901% 1814 42.9 45.76°C 0.994
12.035V 5.004V 3.298V 4.887V 966.726 61.38°C 114.79V
110% 69.539A 10A 10.09A 3.073A 934.325 86.607% 2077 46.3 46.21°C 0.991
12.023V 5V 3.3V 4.882V 1078.82 63.47°C 114.77V
CL1 0.116A 17.989A 17.779A 0A 151.294 83.925% 1557 39.1 42.15°C 0.987
12.106V 5.02V 3.352V 4.984V 180.27 53.93°C 115.05V
CL2 0.116A 19.888A 0A 0A 101.388 83.048% 1074 27.7 40.43°C 0.979
12.117V 5.028V 3.279V 4.994V 122.085 48.67°C 115.07V
CL3 0.114A 0A 19.682A 0A 67.383 78.422% 816 18.1 40.23°C 0.969
12.113V 5.033V 3.353V 4.993V 85.926 48.44°C 115.08V
CL4 70.536A 0A 0A 0A 849.498 88.789% 1438 36.8 45.32°C 0.994
12.044V 5.015V 3.253V 4.972V 956.762 59.46°C 114.79V

The results above are not used in the certification process

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 5.228A 1.986A 2.012A 1.006A 85.012 88.305% 0 <6.0 46.77°C 0.824
12.129V 5.036V 3.281V 4.971V 96.27 40.43°C 230.24V
20% 11.474A 2.981A 3.022A 1.209A 169.964 91.926% 0 <6.0 53.77°C 0.923
12.120V 5.032V 3.276V 4.962V 184.891 40.56°C 230.23V
30% 18.074A 3.481A 3.531A 1.413A 254.976 92.929% 0 <6.0 51.43°C 0.951
12.112V 5.029V 3.271V 4.953V 274.371 41.03°C 230.22V
40% 24.689A 3.981A 4.042A 1.618A 340.068 93.184% 0 <6.0 49.42°C 0.963
12.105V 5.026V 3.266V 4.945V 364.942 41.9°C 230.2V
50% 30.959A 4.981A 5.061A 1.824A 424.921 92.982% 340 <6.0 42.11°C 0.969
12.094V 5.021V 3.26V 4.935V 456.992 51.92°C 230.18V
60% 37.216A 5.983A 6.085A 2A 509.315 92.737% 604 7.3 42.94°C 0.973
12.082V 5.016V 3.255V 4.927V 549.202 54.38°C 230.17V
70% 43.552A 6.988A 7.112A 2.238A 594.769 92.36% 677 10.9 43.27°C 0.976
12.069V 5.011V 3.249V 4.916V 643.969 54.61°C 230.15V
80% 49.904A 7.991A 8.14A 2.343A 679.581 91.913% 1076 27.7 43.72°C 0.978
12.057V 5.005V 3.243V 4.909V 739.373 55.32°C 230.14V
90% 56.665A 8.498A 8.648A 2.449A 764.995 91.437% 1408 36.1 44.06°C 0.98
12.045V 5.001V 3.238V 4.9V 836.633 55.23°C 230.13V
100% 63.170A 9.007A 9.188A 3.075A 849.8 90.874% 1790 42.5 45.3°C 0.982
12.033V 4.996V 3.232V 4.879V 935.14 55.2°C 230.12V
110% 69.531A 10.014A 10.317A 3.077A 934.267 90.318% 2076 46.3 46.56°C 0.983
12.024V 4.992V 3.227V 4.876V 1034.416 56.17°C 230.15V
CL1 0.116A 18.002A 18.308A 0A 151.287 84.557% 1558 39.1 41.89°C 0.92
12.106V 5.016V 3.255V 4.982V 178.916 50.75°C 230.31V
CL2 0.114A 19.895A 0A 0A 101.373 84.495% 816 18.1 40.02°C 0.868
12.116V 5.025V 3.278V 4.993V 119.976 47.36°C 230.33V
CL3 0.114A 0A 20.224A 0A 67.376 78.023% 809 17.9 40.43°C 0.8
12.113V 5.032V 3.263V 4.992V 86.356 46.78°C 230.35V
CL4 70.529A 0A 0A 0A 849.431 91.759% 1537 38.7 45.55°C 0.982
12.044V 5.01V 3.249V 4.968V 925.725 53.78°C 230.23V

The results above are not used in the certification process

Light Load Tests

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.224A 0.496A 0.501A 0.2A 20.003 70.046% 0 <6.0 39.92°C 0.832
12.129V 5.037V 3.29V 4.997V 28.559 36.15°C 115.1V
40W 2.696A 0.695A 0.702A 0.3A 40.004 80.713% 0 <6.0 44.14°C 0.929
12.129V 5.037V 3.29V 4.993V 49.563 37.03°C 115.09V
60W 4.166A 0.893A 0.903A 0.401A 60.003 85.108% 0 <6.0 46.7°C 0.958
12.129V 5.037V 3.29V 4.988V 70.502 38.09°C 115.09V
80W 5.633A 1.092A 1.103A 0.502A 79.949 87.079% 0 <6.0 47.4°C 0.97
12.128V 5.036V 3.29V 4.983V 91.811 39.02°C 115.08V

The results above are not used in the certification process

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.224A 0.496A 0.502A 0.2A 20.015 70.201% 0 <6.0 41.02°C 0.477
12.137V 5.04V 3.288V 4.999V 28.512 36.04°C 230.25V
40W 2.694A 0.695A 0.703A 0.3A 40.011 81.379% 0 <6.0 44.26°C 0.639
12.135V 5.039V 3.286V 4.995V 49.169 37.6°C 230.26V
60W 4.166A 0.893A 0.904A 0.401A 60.009 85.971% 0 <6.0 44.08°C 0.747
12.132V 5.039V 3.285V 4.989V 69.801 38.37°C 230.26V
80W 5.633A 1.092A 1.106A 0.502A 79.962 88.386% 0 <6.0 46.43°C 0.81
12.130V 5.037V 3.283V 4.984V 90.469 39.3°C 230.25V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load20.16mV15.45mV14.94mV12.75mVPass
20% Load24.28mV14.17mV14.22mV13.16mVPass
30% Load27.48mV15.25mV15.36mV14.19mVPass
40% Load29.70mV16.07mV15.15mV15.33mVPass
50% Load30.83mV15.81mV16.13mV15.28mVPass
60% Load32.43mV15.97mV15.82mV16.83mVPass
70% Load34.24mV15.97mV17.37mV16.83mVPass
80% Load36.04mV17.00mV17.11mV16.52mVPass
90% Load37.43mV16.95mV18.56mV17.14mVPass
100% Load42.28mV20.71mV20.06mV21.42mVPass
110% Load46.30mV24.94mV26.06mV26.07mVPass
Crossload123.87mV14.27mV17.01mV9.65mVPass
Crossload220.37mV14.06mV13.03mV10.43mVPass
Crossload318.82mV13.09mV17.01mV9.91mVPass
Crossload440.94mV16.13mV16.19mV13.11mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load19.18mV13.50mV13.03mV12.90mVPass
20% Load24.18mV26.38mV16.50mV25.65mVPass
30% Load27.12mV15.25mV14.48mV14.20mVPass
40% Load28.82mV16.18mV16.45mV14.66mVPass
50% Load31.09mV15.05mV15.67mV15.23mVPass
60% Load32.43mV15.61mV16.08mV15.33mVPass
70% Load34.34mV14.99mV15.57mV16.62mVPass
80% Load36.71mV15.97mV17.27mV16.31mVPass
90% Load38.41mV15.97mV17.43mV16.41mVPass
100% Load40.73mV16.23mV18.20mV19.20mVPass
110% Load45.32mV17.72mV18.98mV20.13mVPass
Crossload123.62mV14.99mV18.20mV10.37mVPass
Crossload221.29mV14.63mV13.14mV9.96mVPass
Crossload320.52mV13.45mV17.89mV10.53mVPass
Crossload442.84mV16.64mV17.74mV12.39mVPass

The results above are not used in the certification process

Corsair RM850e (ThermalProtect)

Top side
Power specifications label
Fan
PSU Internals
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 runs voluntary certification programs for power supplies - ETA for efficiency, LAMBDA for noise and SAFE for safety and correct operation - and for cooling products, with DELTA for chassis soundproofing and PHI for fan airflow and static pressure
CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
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