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EFFICIENCY AND NOISE
LEVEL CERTIFICATIONS
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Evaluation Report
DUT INFORMATION
Brand Cooler Master
Manufacturer (OEM) Gospower
Series MWE Bronze
Model Number MWE Bronze 750
Serial Number MPE7501ACAAB1191400001
DUT Notes
DUT SPECIFICATIONS
Rated Voltage (Vrms) 100-240
Rated Current (Arms) 10-6
Rated Frequency (Hz) 50-60
Rated Power (W) 750
Type ATX12V
Cooling
Semi-Passive Operation ✓
Cable Design Fixed cables
Cooler Master MWE Bronze 750
120mm Fluid Dynamic Bearing Fan
(HA1225H12F-Z)
POWER SPECIFICATIONS
Rail 3.3V 5V 12V 5VSB -12V
Max. Power
Total Max. Power (W) 750
Amps 20 20 62.5 3 0.3
Watts 120 750 15 3.6
CABLES AND CONNECTORS
Captive Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (610mm) 1 1 18-20AWG No
8 pin EPS12V (630mm) / 4+4 pin EPS12V (120mm) 1 1 / 1 18AWG No
6+2 pin PCIe (530mm+120mm) 2 4 16-18AWG No
SATA (530mm+120mm+120mm+120mm) 2 8 18AWG No
4-pin Molex (520mm+120mm+120mm+120mm) 1 4 18AWG No
AC Power Cord (1400mm) - C13 coupler 1 1 18AWG -
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
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EFFICIENCY AND NOISE
LEVEL CERTIFICATIONS
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Evaluation Report
Cooler Master MWE Bronze 750
General Data
Manufacturer (OEM) Gospower
PCB Type Single Sided
Primary Side
Transient Filter 3x Y caps, 2x X caps, 2x CM chokes
Inrush Protection NTC Thermistor & Relay
Bridge Rectifier(s) 1x GBU2508 (800V, 25A @ 100°C)
APFC MOSFETS 2x Sanrise Tech SRC60R140B (630V, 11.2A @ 125°C, 0.14Ohm)
APFC Boost Diode 1x Cengol CGC1S06510 (650V, 10A @ 150°C)
Hold-up Cap(s) 1x Elite (420V, 680uF, 2000h @ 85°C, GM)
Main Switchers 2x Jilin Sino Microelectronics JCS18N50FH (500V, 11A @ 100°C, 0.27Ohm)
APFC Controller Champion CM6500UNX
Resonant Controllers Champion CU6901V
Topology
Primary side: Half-Bridge & LLC converter
Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side
+12V MOSFETS 4x Nce PowerNCEP40T11K (40V, 85A @ 100°C, 2.8mOhm)
5V & 3.3V
Filtering Capacitors
Supervisor IC IN1S313I-SAG
Fan Model Hong Hua HA1225H12F-Z (120mm, 12V, 0.58A, Fluid Dynamic Bearing Fan )
DC-DC Converters: 4x IPS FTD05N03NA (30V, 75A @ 100°C, 6mOhm)
PWM Controllers: ANPECAPW7159C
Electrolytics: 4x Elite (2-5,000h @ 105°C, ED), 5x Elite (2,000h @ 105°C, EL), 2x CapXon (2-5,000h @ 105°C, KF), 1x CapXon (310,000h @ 105°C, GH)
Polymers: CapXon
5VSB Circuit
Rectifier Standby PWM Controller On-Bright OB2365SP
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
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EFFICIENCY AND NOISE
LEVEL CERTIFICATIONS
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Evaluation Report
Cooler Master MWE Bronze 750
RESULTS
Test Date 05-17-2019
Certification Date 06-21-2019
Cybenetics ID # 731
Temperature Range (°C /°F) 30-32 / 86-89.6
Average Efficiency 87.845
Efficiency With 10W (≤500W) or 2% (>500W) Load -115V 72.857
Average Efficiency 5VSB 77.554
Standby Power Consumption (W) -115V 0.0765161
Standby Power Consumption (W) -230V 0.1901850
Average PF 0.907
ErP Lot 3/6 Ready ✓
(EU) No 617/2013 Compliance ✓
Avg Noise Output 42.23
Efficiency Rating (ETA)
Noise Rating (LAMBDA) LAMBDA-S
TEST EQUIPMENT
Chroma 63601-5 x4
Electronic Loads
AC Sources Chroma 6530, Keysight AC6804B
Power Analyzers N4L PPA1530 x2
Sound Analyzer Bruel & Kjaer 2270 G4
Microphone Bruel & Kjaer Type 4955-A
Data Loggers Picoscope TC-08 x2, Labjack U3-HV x2
Tachometer UNI-T UT372 x2
Digital Multimeter Keysight U1273AX, Fluke 289
UPS CyberPower OLS3000E 3kVA x2
Transformer 3kVA 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
Chroma 63600-2 x2
63640-80-80 x20
63610-80-20 x2
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EFFICIENCY AND NOISE
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Evaluation Report
EFFICIENCY GRAPH
Cooler Master MWE Bronze 750
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
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EFFICIENCY AND NOISE
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Evaluation Report
5VSB EFFICIENCY -115V (ERP LOT 3/6 & CEC)
Test # 5VSB
0.045A 0.234
1
5.188V 0.389 115.13V
0.090A 0.467
2
5.187V 0.674 115.13V
0.550A 2.848
3
5.177V 3.619 115.12V
1.000A 5.167
4
5.166V 6.512 115.12V
1.500A 7.733
5
5.154V 9.722 115.12V
DC/AC
(Watts)
Efficiency PF/AC Volts
60.154%
69.288%
78.696%
79.346%
79.541%
0.025
0.043
0.203
0.304
0.369
Cooler Master MWE Bronze 750
5VSB EFFICIENCY -230V (ERP LOT 3/6 & CEC)
Test # 5VSB
0.045A 0.234
1
5.188V 0.505 230.30V
0.090A 0.467
2
5.187V 0.795 230.30V
0.550A 2.848
3
5.177V 3.707 230.33V
1.000A 5.167
4
5.166V 6.560 230.31V
1.500A 7.733
5
5.154V 9.727 230.31V
DC/AC
(Watts)
Efficiency PF/AC Volts
0.010
46.337%
0.016
58.742%
0.070
76.828%
0.120
78.765%
0.169
79.500%
6
3.000A 15.356
5.118V 19.824 115.12V
VAMPIRE POWER -230V
77.462%
0.447
6
3.000A 15.356
79.261%
5.119V 19.374 230.31V
0.276
INFO
This graph is generated by the PPA Standby Power
Analysis software which takes full control of the
power analyzer during the whole procedure. This
application features all of the EN50564 &
IEC62301 test limits for standby power software
testing
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
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EFFICIENCY AND NOISE
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Evaluation Report
EFFICIENCY UNDER HIGH AMBIENT TEMPERATURE
Cooler Master MWE Bronze 750
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
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
INFO
This graph depicts the efficiency levels of the 5VSB
rail with 115V and 230V input
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Evaluation Report
10-110% LOAD TESTS
Test
#
1
2
3
4
5
12V 5V 3.3V 5VSB
4.368A 2.019A 1.981A 0.970A 74.509
12.112V 4.955V 3.331V 5.156V 97.482 40.15°C 230.31V
9.793A 3.036A 2.977A 1.167A 149.398
12.100V 4.943V 3.323V 5.144V 172.746 41.33°C 230.32V
15.630A 3.548A 3.467A 1.364A 224.922
12.087V 4.934V 3.316V 5.132V 250.328 42.08°C 230.32V
21.437A 4.064A 3.987A 1.563A 299.724
12.059V 4.925V 3.310V 5.120V 332.066 43.47°C 230.33V
26.913A 5.090A 4.998A 1.762A 374.677
12.045V 4.913V 3.302V 5.107V 415.410 44.55°C 230.34V
DC/AC
(Watts)
Cooler Master MWE Bronze 750
Fan
Efficiency
76.434% 1428 31.6
86.484% 1875 38.4
89.851% 1763 38.1
90.260% 1986 40.8
90.195% 2156 42.7
Speed
(RPM)
PSU Noise
(dB[A])
Temps
(In/Out)
34.10°C 0.734
34.86°C 0.850
35.00°C 0.886
35.74°C 0.915
36.03°C 0.930
PF/AC
Volts
6
7
8
9
10
11
CL1
CL2
32.394A 6.123A 6.010A 1.963A 449.603
89.845% 2394 44.6
12.033V 4.901V 3.294V 5.094V 500.420 45.62°C 230.34V
37.925A 7.161A 7.033A 2.165A 524.935
89.369% 2469 46.0
12.019V 4.889V 3.285V 5.081V 587.379 46.95°C 230.34V
43.466A 8.205A 8.055A 2.369A 600.271
88.791% 2467 46.0
12.006V 4.877V 3.277V 5.068V 676.051 47.88°C 230.35V
49.382A 8.733A 8.561A 2.372A 674.803
88.107% 2460 45.9
11.994V 4.868V 3.271V 5.059V 765.889 49.24°C 230.35V
55.108A 9.265A 9.103A 2.979A 750.017
87.154% 2466 46.0
11.982V 4.858V 3.263V 5.035V 860.564 51.26°C 230.35V
61.449A 9.276A 9.119A 2.984A 825.246
86.189% 2467 46.0
11.970V 4.851V 3.257V 5.028V 957.482 52.44°C 230.34V
0.152A 14.002A 14.003A 0.000A 116.504
78.120% 2458 45.9
12.096V 4.890V 3.299V 5.153V 149.134 44.47°C 230.34V
62.530A 1.003A 1.001A 1.000A 762.912
87.656% 2468 46.0
11.988V 4.903V 3.284V 5.097V 870.348 51.31°C 230.34V
36.61°C 0.938
37.16°C 0.944
37.53°C 0.951
38.29°C 0.956
39.74°C 0.960
40.23°C 0.963
36.26°C 0.831
39.99°C 0.960
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
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20-80W LOAD TESTS
Test # 12V 5V 3.3V 5VSB
1.202A 0.504A 0.478A 0.193A 19.631
1
12.088V 4.970V 3.340V 5.181V 25.605 230.33V
2.460A 1.008A 0.987A 0.387A 40.041
2
12.090V 4.965V 3.337V 5.174V 47.940 230.33V
3.642A 1.514A 1.470A 0.581A 59.533
3
12.115V 4.959V 3.333V 5.167V 80.418 230.33V
4.896A 2.020A 1.979A 0.775A 79.892
4
12.111V 4.954V 3.330V 5.160V 102.810 230.33V
RIPPLE MEASUREMENTS
DC/AC
(Watts)
Cooler Master MWE Bronze 750
Efficiency
76.669% 0 <6.0
83.523% 0 <6.0
74.029% 1433 31.7
77.708% 1450 32.3
Fan Speed
(RPM)
PSU Noise
(dB[A])
PF/AC Volts
0.354
0.528
0.679
0.746
Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 14.2 mV 19.0 mV 13.4 mV 16.9 mV Pass
20% Load 14.9 mV 19.1 mV 14.4 mV 15.3 mV Pass
30% Load 29.9 mV 19.9 mV 14.8 mV 14.9 mV Pass
40% Load 25.5 mV 19.1 mV 15.6 mV 14.6 mV Pass
50% Load 22.8 mV 19.7 mV 16.1 mV 14.8 mV Pass
60% Load 22.0 mV 19.4 mV 19.0 mV 16.4 mV Pass
70% Load 21.8 mV 20.2 mV 18.7 mV 16.6 mV Pass
80% Load 30.7 mV 21.8 mV 22.4 mV 18.5 mV Pass
90% Load 21.2 mV 20.6 mV 23.3 mV 18.7 mV Pass
100% Load 37.1 mV 23.1 mV 25.1 mV 23.9 mV Pass
110% Load 36.0 mV 22.6 mV 27.1 mV 24.2 mV Pass
Crossload 1 17.6 mV 26.2 mV 28.5 mV 16.7 mV Pass
Crossload 2 34.0 mV 21.6 mV 16.3 mV 19.1 mV Pass
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
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EFFICIENCY AND NOISE
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Power specifications label
LEVEL CERTIFICATIONS
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Evaluation Report
HOLD-UP TIME & POWER OK SIGNAL (230V)
Hold-Up Time (ms) 22.4
AC Loss to PWR_OK Hold Up Time (ms) 21.0
PWR_OK Inactive to DC Loss Delay (ms) 1.4
Cooler Master MWE Bronze 750
CERTIFICATIONS
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
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