CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Cooler Master MWE Gold 850 V2 (GX Gold 750) (#2)
Serial Number
Lab IDCM85002259
  • Report: 23PS2259A
  • Receipt Date: Sep 27, 2023
  • Test Date: Oct 12, 2023
  • Report Date: Oct 13, 2023
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandCooler Master
Manufacturer (OEM)Huizhou Xin Hui Yuan Tech (Fusion Power)
SeriesMWE Gold V2 / GX Gold
Model NumberMPE-8501-AFAAG
Serial Number
DUT NotesThe unit doesn't have 12VHPWR

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)12-6
Rated Frequency (Hz)50-60
Rated Power (W)850
TypeATX12V
Cooling120mm Fluid Dynamic Bearing Fan
(HA1225H12F-Z)
Semi-Passive Operation✗
Cable DesignFully Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps202070.830.3
Watts100850153.6
Total Max. Power (W)850

Test Equipment

Electronic Loads Chroma 63601-5 x2
Chroma 63600-2
63640-80-80 x10
63610-80-20
AC Sources Chroma 6530, APM SP300VAC4000W-P
Power Analyzers RS HMC8015, N4L PPA1530, N4L PPA5530
Oscilloscopes Picoscope 4444, Rigol DS7014, 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, Keithley 2015 - THD
UPS FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA
Isolation Transformer 4kVA
Testing Methodology Cybenetics PSU Test Protocol

Cables and Connectors

Modular Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (600mm) 1 1 18AWG No
4+4 pin EPS12V (610mm) 1 1 18AWG No
8 pin EPS12V (660mm) 1 1 18AWG No
6+2 pin PCIe (560mm+125mm) 2 4 16-18AWG No
SATA (510mm+120mm+120mm+120mm) 3 12 18AWG No
4-pin Molex (500mm+120mm+120mm+120mm) 1 4 18AWG No
AC Power Cord (1400mm) - C13 coupler 1 1 18AWG -

Test Results

Temperature & Compliance Info

Temperature Range (°C /°F)30-32 / 86-89.6
ErP Lot 3/6 Ready✓
(EU) No 617/2013 Compliance✓
ALPM (Alternative Low Power Mode) compatible✓
ATX v3.1 PSU Power Excursion✓

Performance Summary

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)22.4
AC Loss to PWR_OK Hold Up Time (ms)19.5
PWR_OK Inactive to DC Loss Delay (ms)2.9

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.15 V 115.13 V 113.85 V 115.17 V 116.15 V PASS
Mains Frequency: 60.00 Hz 60.00 Hz 59.40 Hz 60.01 Hz 60.60 Hz PASS
Mains Voltage CF: 1.415 1.415 1.340 1.416 1.490 PASS
Mains Voltage THD: 0.13 % 0.11 % N/A 0.15 % 2.00 % PASS
Real Power: 0.058 W 0.011 W N/A 0.070 W N/A N/A
Apparent Power: 7.820 W 7.813 W N/A 7.825 W N/A N/A
Power Factor: 0.009 N/A N/A N/A N/A N/A
Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 230.39 V 230.37 V 227.70 V 230.41 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: 0.132 W 0.111 W N/A 0.184 W N/A N/A
Apparent Power: 26.212 W 26.194 W N/A 26.225 W N/A N/A
Power Factor: 0.005 N/A N/A N/A N/A N/A

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

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 0.23W 66.777% 0.044
5.106V 0.345W 115.16V
2 0.09A 0.459W 72.859% 0.078
5.105V 0.63W 115.17V
3 0.55A 2.801W 81.38% 0.3
5.091V 3.442W 115.17V
4 1A 5.08W 81.343% 0.389
5.079V 6.245W 115.17V
5 1.5A 7.599W 82.138% 0.43
5.065V 9.251W 115.17V
6 3A 15.069W 78.688% 0.492
5.022V 19.149W 115.16V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.23W 53.412% 0.016
5.106V 0.431W 230.4V
2 0.09A 0.459W 63.506% 0.027
5.104V 0.724W 230.4V
3 0.55A 2.801W 78.805% 0.126
5.091V 3.555W 230.4V
4 1A 5.08W 80.292% 0.201
5.079V 6.328W 230.4V
5 1.5A 7.599W 81.014% 0.261
5.065V 9.378W 230.4V
6 3A 15.069W 79.805% 0.357
5.022V 18.883W 230.4V

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% 5.190A 1.98A 2.001A 0.987A 84.997 84.789% 1010 23.5 40.23°C 0.971
12.214V 5.052V 3.297V 5.067V 100.247 44.45°C 115.14V
20% 11.388A 2.971A 3.003A 1.189A 169.949 89.16% 1011 23.6 40.38°C 0.978
12.210V 5.049V 3.296V 5.049V 190.608 45.14°C 115.1V
30% 17.932A 3.469A 3.505A 1.391A 254.956 90.378% 1014 23.6 41.51°C 0.982
12.207V 5.046V 3.295V 5.032V 282.098 46.79°C 115.08V
40% 24.486A 3.967A 4.007A 1.596A 340.048 90.587% 1015 23.7 41.86°C 0.989
12.204V 5.043V 3.294V 5.014V 375.385 47.61°C 115.06V
50% 30.693A 4.962A 5.01A 1.802A 424.966 90.245% 1016 23.7 42.11°C 0.993
12.200V 5.039V 3.293V 4.996V 470.903 48.27°C 115.04V
60% 36.869A 5.958A 6.014A 2A 509.45 89.727% 1035 24.1 42.75°C 0.995
12.197V 5.036V 3.292V 4.978V 567.777 49.39°C 115.03V
70% 43.116A 6.956A 7.019A 2.219A 594.845 88.843% 1900 41.3 43.03°C 0.996
12.194V 5.033V 3.291V 4.958V 669.544 50.11°C 115.01V
80% 49.369A 7.952A 8.023A 2.327A 679.667 88.099% 2127 44.3 43.56°C 0.997
12.189V 5.03V 3.29V 4.942V 771.485 51.66°C 114.99V
90% 56.012A 8.455A 8.511A 2.436A 765.106 87.314% 2128 44.3 44.91°C 0.997
12.187V 5.026V 3.289V 4.927V 876.279 54.01°C 114.96V
100% 62.399A 8.958A 9.03A 3.064A 849.94 86.29% 2135 44.5 45.3°C 0.998
12.183V 5.023V 3.288V 4.896V 984.968 55.31°C 114.94V
110% 68.655A 9.961A 10.128A 3.073A 934.533 85.141% 2140 44.6 47.23°C 0.998
12.180V 5.019V 3.287V 4.882V 1097.623 58.17°C 114.92V
CL1 0.115A 11.92A 12.051A 0A 101.293 82.159% 1018 23.7 42.88°C 0.988
12.216V 5.05V 3.294V 5.071V 123.29 48.41°C 115.14V
CL2 0.114A 19.766A 0A 0A 101.39 80.274% 1014 23.6 41.34°C 0.988
12.217V 5.059V 3.289V 5.086V 126.307 48.43°C 115.14V
CL3 0.114A 0A 19.988A 0A 67.386 73.966% 1019 23.8 44.58°C 0.969
12.214V 5.042V 3.302V 5.07V 91.104 53.61°C 115.15V
CL4 69.738A 0A 0A 0A 849.856 86.964% 2134 44.5 46.28°C 0.998
12.187V 5.025V 3.292V 5.004V 977.252 57.17°C 114.95V

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% 5.191A 1.98A 2.002A 0.987A 85.004 86.427% 1006 24.4 40.34°C 0.836
12.213V 5.052V 3.297V 5.067V 98.353 44.58°C 230.4V
20% 11.390A 2.972A 3.004A 1.189A 169.969 90.59% 1008 23.5 40.7°C 0.921
12.209V 5.049V 3.296V 5.049V 187.635 45.22°C 230.39V
30% 17.936A 3.469A 3.505A 1.392A 254.982 91.861% 1012 23.6 41.45°C 0.95
12.207V 5.045V 3.295V 5.031V 277.575 46.46°C 230.38V
40% 24.490A 3.967A 4.007A 1.596A 340.075 92.251% 1013 23.6 41.79°C 0.964
12.203V 5.042V 3.294V 5.014V 368.642 47.36°C 230.37V
50% 30.701A 4.962A 5.01A 1.802A 425.045 92.144% 1016 23.7 42.12°C 0.972
12.200V 5.039V 3.293V 4.995V 461.279 48.25°C 230.35V
60% 36.875A 5.959A 6.014A 2.001A 509.52 91.953% 1048 24.5 42.74°C 0.978
12.197V 5.036V 3.292V 4.977V 554.105 49.39°C 230.34V
70% 43.122A 6.956A 7.019A 2.219A 594.889 91.428% 1844 40.4 42.99°C 0.983
12.193V 5.033V 3.291V 4.958V 650.666 50.09°C 230.32V
80% 49.374A 7.953A 8.023A 2.327A 679.709 90.943% 2118 44.1 43.82°C 0.985
12.189V 5.029V 3.29V 4.942V 747.405 51.87°C 230.31V
90% 56.019A 8.456A 8.512A 2.436A 765.144 90.492% 2124 44.2 44.61°C 0.986
12.186V 5.026V 3.289V 4.926V 845.535 53.64°C 230.29V
100% 62.404A 8.959A 9.03A 3.064A 849.972 89.886% 2131 44.4 45.7°C 0.988
12.183V 5.023V 3.288V 4.896V 945.617 55.73°C 230.28V
110% 68.658A 9.961A 10.128A 3.073A 934.544 89.183% 2139 44.6 47.46°C 0.989
12.180V 5.019V 3.287V 4.882V 1047.896 58.4°C 230.27V
CL1 0.115A 11.92A 12.051A 0A 101.295 83.637% 1016 23.7 42.85°C 0.87
12.216V 5.05V 3.294V 5.071V 121.113 48.33°C 230.39V
CL2 0.114A 19.768A 0A 0A 101.392 81.688% 1017 23.7 43.92°C 0.874
12.218V 5.058V 3.289V 5.086V 124.123 50.99°C 230.39V
CL3 0.114A 0A 19.991A 0A 67.387 75.525% 1017 23.7 43.46°C 0.823
12.214V 5.039V 3.301V 5.07V 89.226 52.52°C 230.39V
CL4 69.741A 0A 0A 0A 849.861 90.667% 2125 44.3 44.73°C 0.988
12.187V 5.025V 3.292V 5.004V 937.351 55.7°C 230.28V

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 1.216A 0.495A 0.5A 0.196A 20.001 66.819% 995 23.2 36.93°C 0.848
12.207V 5.054V 3.297V 5.1V 29.933 39.99°C 115.16V
40W 2.676A 0.693A 0.7A 0.294A 39.998 77.857% 1001 23.3 37.52°C 0.93
12.214V 5.054V 3.298V 5.094V 51.373 40.81°C 115.16V
60W 4.137A 0.891A 0.9A 0.393A 59.995 82.757% 1004 23.4 38.29°C 0.965
12.213V 5.053V 3.298V 5.089V 72.495 42.05°C 115.15V
80W 5.594A 1.089A 1.101A 0.492A 79.952 84.807% 1006 23.4 39.18°C 0.969
12.213V 5.053V 3.298V 5.083V 94.275 43.11°C 115.15V

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 1.217A 0.495A 0.5A 0.196A 20.007 67.564% 998 23.2 36.87°C 0.553
12.207V 5.054V 3.297V 5.1V 29.613 39.92°C 230.4V
40W 2.676A 0.693A 0.7A 0.295A 40.005 79.024% 1001 23.3 37.61°C 0.69
12.214V 5.054V 3.298V 5.094V 50.623 40.97°C 230.41V
60W 4.138A 0.891A 0.901A 0.393A 60.004 83.866% 1002 23.3 38.56°C 0.777
12.213V 5.053V 3.298V 5.089V 71.55 41.99°C 230.41V
80W 5.596A 1.089A 1.101A 0.492A 79.97 86.544% 1004 23.4 39.33°C 0.828
12.213V 5.053V 3.298V 5.083V 92.404 43.18°C 230.41V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load14.59mV7.06mV6.81mV8.26mVPass
20% Load19.07mV9.46mV7.93mV8.87mVPass
30% Load15.87mV8.33mV8.44mV9.18mVPass
40% Load15.82mV10.64mV10.03mV9.08mVPass
50% Load16.79mV9.67mV11.26mV9.18mVPass
60% Load17.04mV10.79mV11.67mV10.30mVPass
70% Load16.17mV11.35mV12.59mV10.45mVPass
80% Load16.86mV12.68mV16.99mV10.91mVPass
90% Load17.78mV13.30mV17.04mV11.83mVPass
100% Load29.21mV13.73mV19.80mV14.69mVPass
110% Load32.81mV14.03mV21.33mV15.59mVPass
Crossload119.87mV7.75mV12.76mV8.99mVPass
Crossload215.87mV7.62mV6.96mV7.85mVPass
Crossload313.98mV5.52mV14.23mV8.31mVPass
Crossload429.31mV11.55mV16.04mV13.34mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load17.18mV6.70mV6.30mV8.51mVPass
20% Load22.49mV8.39mV7.32mV8.87mVPass
30% Load18.76mV8.38mV8.09mV8.72mVPass
40% Load18.05mV10.69mV10.80mV9.08mVPass
50% Load18.66mV9.82mV11.26mV9.13mVPass
60% Load17.64mV10.18mV10.49mV13.25mVPass
70% Load17.94mV12.07mV12.34mV10.15mVPass
80% Load19.53mV12.12mV16.38mV10.50mVPass
90% Load18.86mV13.04mV17.40mV11.26mVPass
100% Load30.79mV14.15mV19.07mV13.95mVPass
110% Load33.97mV13.46mV20.20mV13.88mVPass
Crossload122.15mV7.89mV13.82mV9.35mVPass
Crossload218.45mV7.42mV7.22mV8.87mVPass
Crossload316.00mV6.24mV14.12mV8.16mVPass
Crossload430.66mV11.23mV14.53mV11.93mVPass

The results above are not used in the certification process

Cooler Master MWE Gold 850 V2 (GX Gold 750) (#2)

Top side
Power specifications label
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
CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
www.cybenetics.com - info@cybenetics.com