CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Version:00
Cooler Master MWE Bronze 550 V3 230V
Serial NumberMPE5501ACABW3BEU1241500002
Lab IDCM55002483
Certification ID252483
  • Test Result Report ID: 24PS2483A
  • Certificate Issue Date: Jun 20, 2024
115V230V
Scheme: ETA-EMI PSU
115V230V
Scheme: LAMBDA PSU
Aristeidis Bitziopoulos, Certification Body General Manager

General Information

DUT Information

BrandCooler Master
Manufacturer (OEM)Gospower
SeriesMWE Bronze V3
Model NumberMPE-5501-ACABW
Serial NumberMPE5501ACABW3BEU1241500002
DUT Notes

DUT Specifications

Rated Voltage (Vrms)200-240
Rated Current (Arms)5
Rated Frequency (Hz)50-60
Rated Power (W)550
TypeATX12V
Dimensions (W x H x D)
Cooling120mm Fluid Dynamic Bearing Fan
(HA1225H12F-Z)
Semi-Passive Operation✓
Cable DesignFixed cables

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps17174530.3
Watts110540153.6
Total Max. Power (W)550

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

Captive Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 24 pin (500mm) 1 1 18AWG No
4+4 pin EPS12V(570mm) 1 1 18AWG No
6+2 pin PCIe (545mm+100mm) 1 2 16-18AWG No
SATA (430mm+150mm+150mm) 2 6 18AWG No
4-pin Molex (430mm+150mm+150mm) 1 3 18AWG No
Modular Cables
AC Power Cord (1380mm) - 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 230V

Efficiency RatingSILVER
Noise RatingA-
Average Efficiency (>1450 load combinations)87.453%
Average Noise Output (>1450 Load Combinations)27.29dBA
Average PF (>1450 Load Combinations)0.942
Efficiency With 10W (≤500W) or 2% (>500W) Load0.000%
Standby Power Consumption0.1777W
12V Ripple (Full Load)44.61mV
5V Ripple (Full Load)18.04mV
3.3V Ripple (Full Load)18.13mV
5VSB Ripple (Full Load)51.14mV
12V Load Regulation1.66%
5V Load Regulation2.73%
3.3V Load Regulation3.47%
5VSB Load Regulation3.98%
Inrush CurrentToo low to detect
12V Transient Response (150%)11.72V
5V Transient Response (150%)4.959V
3.3V Transient Response (150%)3.233V
5VSB Transient Response (150%)4.984V
Hold-Up Time & Power Ok Signal24.50ms
AC Loss to PWR_OK Hold Up Time22.80ms
PWR_OK Inactive to DC Loss Delay1.70ms
PSU Timings: T1 (20% / 100%)55.0ms56.0ms
PSU Timings: T3 (20% / 100%)114.0ms114.0ms
12V OCP (28.1°C / 43.0°C)68.60A (152.44%), 11.880V63.20A (140.44%), 11.915V
5V OCP (28.1°C / 43.0°C)25.4A (149.41%), 4.966V25.7A (151.18%), 4.962V
3.3V OCP (28.1°C / 43.0°C)30A (176.47%), 3.292V30A (176.47%), 3.291V
5VSB OCP (28.1°C / 43.0°C)4.5`A (150.00%), 4.998V4.3A (143.33%), 4.989V
OPP (27.96°C / 43.62°C)150.17%142.71%

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)24.5
AC Loss to PWR_OK Hold Up Time (ms)22.8
PWR_OK Inactive to DC Loss Delay (ms)1.7

Vampire Power

Tables 230V

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 231.02 V 230.93 V 227.70 V 231.09 V 232.30 V PASS
Mains Frequency: 50.00 Hz 49.99 Hz 49.50 Hz 50.01 Hz 50.50 Hz PASS
Mains Voltage CF: 1.417 1.416 1.340 1.419 1.490 PASS
Mains Voltage THD: 0.17 % 0.15 % N/A 0.26 % 2.00 % PASS
Real Power: 0.178 W 0.139 W N/A 0.241 W N/A N/A
Apparent Power: 51.973 W 51.669 W N/A 52.321 W N/A N/A
Power Factor: 0.003 N/A N/A N/A N/A N/A

Graphs 230V

Efficiency Graph

230V

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

230V

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 EN55032 & CISPR 32

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) 230V

Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.231W 47.924% 0.01
5.132V 0.483W 230.37V
2 0.09A 0.462W 59.845% 0.015
5.131V 0.773W 230.36V
3 0.55A 2.816W 75.592% 0.073
5.118V 3.726W 230.36V
4 1A 5.107W 77.056% 0.124
5.105V 6.627W 230.36V
5 1.5A 7.638W 77.641% 0.173
5.091V 9.835W 230.36V
6 3A 15.142W 76.568% 0.277
5.047V 19.779W 230.36V

Protection Features

OCP (Cold @ 28.1°C)12V: 68.60A (152.44%), 11.880V
5V: 25.4A (149.41%), 4.966V
3.3V: 30A (176.47%), 3.292V
5VSB: 4.5`A (150.00%), 4.998V
OCP (Hot) @ 43.0°C)12V: 63.20A (140.44%), 11.915V
5V: 25.7A (151.18%), 4.962V
3.3V: 30A (176.47%), 3.291V
5VSB: 4.3A (143.33%), 4.989V
OPP (Cold @ 28.0°C)825.92W (150.17%)
OPP (Hot @ 43.6°C)784.89W (142.71%)
OTP✓ (133°C @ Secondary Side)
SCP12V to Earth: ✓
5V to Earth: ✓
3.3V to Earth: ✓
5VSB to Earth: ✓
-12V to Earth: ✓
PWR_OKProper Operation
NLO✓
Fan Failure Protection✗
SIPSurge: MOV
Inrush: NTC & Bypass Relay

Supplementary Tests (For Reference)

Typical Load Tests 230V

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 2.756A 1.962A 1.967A 0.983A 55.006 78.834% 1261 27.2 40.09°C 0.721
12.119V 5.098V 3.355V 5.089V 69.775 41.87°C 230.37V
20% 6.533A 2.951A 2.961A 1.183A 109.957 86.253% 1307 28.9 40.58°C 0.874
12.100V 5.084V 3.344V 5.072V 127.482 42.48°C 230.36V
30% 10.679A 3.451A 3.465A 1.385A 164.954 88.668% 1372 29.6 41.15°C 0.927
12.069V 5.073V 3.333V 5.056V 186.043 43.13°C 230.36V
40% 14.851A 3.952A 3.972A 1.588A 220.038 89.263% 1489 31.9 41.89°C 0.952
12.041V 5.062V 3.323V 5.04V 246.506 44.06°C 230.36V
50% 18.677A 4.955A 4.983A 1.792A 275.037 89.216% 1535 33.2 42.07°C 0.965
12.021V 5.047V 3.311V 5.023V 308.281 44.7°C 230.35V
60% 22.514A 5.963A 6.002A 1.999A 330.031 88.993% 1534 33.2 42.66°C 0.973
12.002V 5.032V 3.299V 5.005V 370.851 45.67°C 230.35V
70% 26.365A 6.978A 7.029A 2.206A 385.031 88.552% 1535 33.2 43.22°C 0.978
11.982V 5.017V 3.287V 4.986V 434.808 46.58°C 230.34V
80% 30.240A 7.998A 8.06A 2.314A 439.644 87.973% 1534 33.2 43.65°C 0.982
11.962V 5.002V 3.275V 4.971V 499.749 47.75°C 230.33V
90% 34.514A 8.517A 8.577A 2.422A 494.671 87.361% 1533 33.2 44°C 0.985
11.943V 4.99V 3.264V 4.955V 566.236 48.49°C 230.32V
100% 38.592A 9.041A 9.13A 3.047A 549.886 86.479% 1531 33.2 45.64°C 0.986
11.925V 4.978V 3.253V 4.925V 635.861 50.99°C 230.31V
110% 42.555A 10.078A 10.278A 3.056A 604.902 85.465% 1531 33.2 46.38°C 0.988
11.905V 4.961V 3.24V 4.91V 707.779 52.52°C 230.3V
CL1 0.116A 13.203A 13.195A 0.001A 111.304 80.72% 1524 33 40.92°C 0.889
12.106V 5.014V 3.312V 5.077V 137.889 44.54°C 230.36V
CL2 0.115A 16.937A 0A 0.001A 86.402 79.092% 1528 33.1 40.08°C 0.842
12.117V 5.019V 3.34V 5.1V 109.243 42.7°C 230.36V
CL3 0.115A 0A 16.86A 0.001A 57.494 72.381% 1531 33.2 40.87°C 0.76
12.111V 5.089V 3.327V 5.097V 79.431 43.21°C 230.36V
CL4 46.136A 0A 0A 0.001A 549.675 87.759% 1538 33 45.8°C 0.986
11.914V 5.045V 3.288V 5.039V 626.353 49.38°C 230.3V

The results above are not used in the certification process

Light Load Tests 230V

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.228A 0.489A 0.49A 0.195A 20.001 81.701% 0 <6.0 42.33°C 0.367
12.101V 5.114V 3.366V 5.121V 24.483 36.7°C 230.36V
40W 2.696A 0.685A 0.687A 0.293A 40 65.43% 1124 24.7 37.22°C 0.672
12.122V 5.11V 3.362V 5.114V 61.136 40.21°C 230.36V
60W 4.170A 0.882A 0.884A 0.392A 60.002 80.23% 1195 25.3 38.5°C 0.742
12.118V 5.107V 3.359V 5.106V 74.719 40.86°C 230.37V
80W 5.643A 1.078A 1.082A 0.49A 79.96 84.167% 1216 26.3 39.35°C 0.808
12.108V 5.101V 3.355V 5.101V 95.002 41.18°C 230.36V

The results above are not used in the certification process

Ripple Measurements 230V

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 10.7 mV 11.4 mV 6.0 mV 34.7 mV Pass
20% Load 9.7 mV 11.5 mV 7.0 mV 34.7 mV Pass
30% Load 36.0 mV 11.8 mV 7.2 mV 35.7 mV Pass
40% Load 30.7 mV 11.8 mV 7.6 mV 36.4 mV Pass
50% Load 28.9 mV 12.2 mV 8.5 mV 36.8 mV Pass
60% Load 28.7 mV 13.0 mV 9.3 mV 37.8 mV Pass
70% Load 28.5 mV 14.0 mV 10.2 mV 39.8 mV Pass
80% Load 28.4 mV 15.5 mV 15.8 mV 40.5 mV Pass
90% Load 28.9 mV 16.0 mV 17.0 mV 41.6 mV Pass
100% Load 44.6 mV 18.0 mV 18.1 mV 51.1 mV Fail
110% Load 46.0 mV 19.7 mV 19.0 mV 52.4 mV Fail
Crossload 1 18.2 mV 20.9 mV 21.2 mV 37.2 mV Pass
Crossload 2 15.5 mV 24.3 mV 10.3 mV 36.4 mV Pass
Crossload 3 15.1 mV 14.9 mV 20.8 mV 36.4 mV Pass
Crossload 4 41.5 mV 14.0 mV 9.5 mV 38.3 mV Pass

The results above are not used in the certification process

Cooler Master MWE Bronze 550 V3 230V

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