CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Cooler Master V750i Gold
Serial Number
Lab IDCM75002167
  • Report: 23PS2167A
  • Receipt Date: Mar 28, 2023
  • Test Date: Apr 5, 2023
  • Report Date: Apr 5, 2023
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandCooler Master
Manufacturer (OEM)Chicony Power
SeriesVi Gold
Model NumberMPZ-7501-AFAG
Serial Number
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)10-6
Rated Frequency (Hz)50-60
Rated Power (W)750
TypeATX12V
Cooling135mm Fluid Dynamic Bearing Fan
(YY14025M12B)
Semi-Passive Operation✓
Cable DesignFully Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps202062.530.3
Watts120750153.6
Total Max. Power (W)750

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 (650mm) 1 1 18-22AWG No
4+4 pin EPS12V (650mm) 1 1 18AWG No
8 pin EPS12V (650mm) 1 1 18AWG No
6+2 pin PCIe (550mm) 3 3 16-18AWG No
12+4 pin PCIe (650mm) (300W) 1 1 16-24AWG No
SATA (500mm+120mm+120mm+120mm) 3 12 18AWG No
4 pin Molex (400mm+120mm+120mm+120mm) 1 4 18AWG No
Motherboard USB Cable (810mm) 1 1 24AWG No
AC Power Cord (1400mm) - C13 coupler 1 1 14AWG -

Parts Description

General Data -
Manufacturer (OEM) Chicony Power
PCB Type Double Sided
Primary Side -
Transient Filter 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush Protection 1x NTC Thermistor JNR15S100L (10 Ohm) & Relay
Bridge Rectifier(s) 2x Diodes GBU15JL (600V, 15A @ 115°C)
APFC MOSFETs 2x Infineon IPP60R120P7 (600V, 16A @ 100°C, Rds(on): 0.120Ohm) &
1x Champion CM03X (reduce the no load consumption)
APFC Boost Diode 1x CREE C6D08065A (650V, 8A @ 155°C)
Bulk Cap(s) 1x Rubycon (450V, 680uF, 3,000h @ 105°C, MXK)
Main Switchers 2x Infineon IPA60R120P7 (600V, 16A @ 100°C, Rds(on): 0.120Ohm)
APFC Controller Infineon ICE2PCS01G
Resonant Controller MPS HR100A
Topology Primary side: APFC, Half-Bridge & LLC converter
Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side -
+12V MOSFETs -
5V & 3.3V DC-DC Converters: 4x Alpha & Omega AON6144 (40V, 89A @ 100°C, Rds(on): 2.4mOhm)
PWM Controller(s): ANPEC APW7159C
Filtering Capacitors Electrolytic:3x Nippon Chemi-Con (2-5,000h @ 105°C, KZE), 2x Nichicon (5-6,000h @ 105°C, HV), 1x Nichicon (2-4,000h @ 105°C, HD), 2x Rubycon (6-10,000h @ 105°C, ZLH)
Polymer: 11x Nippon Chemi-Con, 7x FPCAP, 10x NIC, 2x Nichicon
Supervisor IC Weltrend WT7502R
ARM Microcontroller Nuvoton M032EC1AE (USB connectivity & Fan control)
Fan Model Snowfan YY14025M12B (135mm, 12V, 0.40A, Fluid Dynamic Bearing Fan)
5VSB Circuit -
Rectifier STMicroelectronics STD4N80K5 FET(800V, 1.7A @ 100°C, Rds(on): 2.5Ohm) &1x Advanced Power AP6N6R5LMT-L FET (60V, 16.9A @ 70°C, Rds(on): 6.5mOhm)
Standby PWM Controller OnSemiconductor NCP12400
-12V Circuit -
Rectifier UTC LM7912L (-12V, 1A)

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 v3.0 Compliance✓

Performance Summary

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)31.6
AC Loss to PWR_OK Hold Up Time (ms)22.5
PWR_OK Inactive to DC Loss Delay (ms)9.1

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.12 V 115.11 V 113.85 V 115.15 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.95 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 % 0.10 % N/A 0.15 % 2.00 % PASS
Real Power: 0.047 W 0.011 W N/A 0.070 W N/A N/A
Apparent Power: 6.968 W 6.962 W N/A 6.986 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: 230.25 V 230.22 V 227.70 V 230.31 V 232.30 V PASS
Mains Frequency: 50.00 Hz 50.00 Hz 49.50 Hz 50.01 Hz 50.50 Hz PASS
Mains Voltage CF: 1.415 1.415 1.340 1.415 1.490 PASS
Mains Voltage THD: 0.14 % 0.13 % N/A 0.16 % 2.00 % PASS
Real Power: 0.129 W 0.117 W N/A 0.141 W N/A N/A
Apparent Power: 23.260 W 23.238 W N/A 23.277 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 0.228W 63.362% 0.051
5.075V 0.36W 115.16V
2 0.09A 0.457W 72.039% 0.088
5.072V 0.634W 115.16V
3 0.55A 2.776W 82.259% 0.333
5.045V 3.375W 115.16V
4 1A 5.027W 83.087% 0.43
5.025V 6.05W 115.16V
5 1.5A 7.516W 83.066% 0.481
5.01V 9.048W 115.16V
6 3A 14.877W 82.431% 0.533
4.958V 18.049W 115.16V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.228W 53.716% 0.018
5.074V 0.425W 230.4V
2 0.09A 0.457W 65.395% 0.03
5.072V 0.699W 230.39V
3 0.55A 2.776W 79.775% 0.139
5.046V 3.48W 230.39V
4 1A 5.026W 82.516% 0.219
5.025V 6.091W 230.38V
5 1.5A 7.514W 83.304% 0.285
5.008V 9.02W 230.37V
6 3A 14.877W 83.394% 0.389
4.958V 17.84W 230.37V

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% 4.430A 1.982A 2.002A 0.996A 74.995 88.141% 0 <6.0 43.85°C 0.954
12.052V 5.047V 3.296V 5.022V 85.086 39.69°C 115.15V
20% 9.884A 2.975A 3.005A 1.198A 149.946 90.891% 0 <6.0 44.77°C 0.985
12.045V 5.042V 3.294V 5.008V 164.975 40.19°C 115.13V
30% 15.690A 3.474A 3.508A 1.402A 224.948 91.509% 0 <6.0 46.57°C 0.991
12.039V 5.038V 3.293V 4.994V 245.817 41.56°C 115.11V
40% 21.510A 3.973A 4.011A 1.606A 300.032 91.668% 0 <6.0 47.59°C 0.994
12.033V 5.035V 3.291V 4.982V 327.305 41.97°C 115.09V
50% 26.938A 4.971A 5.017A 1.812A 374.495 91.316% 441 10.1 42.37°C 0.996
12.027V 5.03V 3.289V 4.969V 410.104 48.31°C 115.07V
60% 32.410A 5.971A 6.024A 2A 449.332 90.815% 441 10.1 42.95°C 0.997
12.021V 5.025V 3.287V 4.956V 494.779 49.39°C 115.05V
70% 37.891A 6.972A 7.031A 2.226A 524.373 90.119% 442 10.1 43.02°C 0.997
12.015V 5.021V 3.286V 4.942V 581.86 50.04°C 115.04V
80% 43.442A 7.974A 8.037A 2.332A 599.584 89.349% 802 24.0 43.28°C 0.997
12.009V 5.017V 3.284V 4.932V 671.073 51.38°C 115.02V
90% 49.332A 8.477A 8.528A 2.437A 674.611 88.575% 992 30.2 44.87°C 0.998
12.003V 5.013V 3.282V 4.924V 761.626 53.88°C 115V
100% 55.031A 8.984A 9.051A 3.064A 749.864 87.608% 1469 41.3 45.17°C 0.998
11.996V 5.009V 3.28V 4.896V 855.928 55.25°C 114.98V
110% 60.599A 9.989A 10.152A 3.068A 824.858 86.698% 1475 41.4 47.3°C 0.998
11.990V 5.005V 3.279V 4.89V 951.428 58.22°C 114.96V
CL1 0.116A 14.346A 14.506A 0A 121.283 85.227% 0 <6.0 51.16°C 0.979
12.041V 5.032V 3.288V 5.041V 142.308 45.66°C 115.13V
CL2 0.116A 19.84A 0A 0A 101.386 84.442% 0 <6.0 48.84°C 0.97
12.048V 5.04V 3.291V 5.066V 120.064 41.56°C 115.15V
CL3 0.116A 0A 20.019A 0A 67.38 78.92% 458 10.9 42.18°C 0.955
12.044V 5.048V 3.296V 5.042V 85.377 51.19°C 115.15V
CL4 62.457A 0A 0A 0A 749.609 88.217% 997 30.3 45.83°C 0.998
12.002V 5.027V 3.291V 5.043V 849.741 56.79°C 114.98V

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% 4.430A 1.982A 2.002A 0.996A 74.988 89.211% 0 <6.0 43.86°C 0.792
12.053V 5.045V 3.296V 5.022V 84.058 39.57°C 230.33V
20% 9.880A 2.976A 3.005A 1.198A 149.919 92.187% 0 <6.0 45.27°C 0.901
12.046V 5.041V 3.294V 5.008V 162.626 40.45°C 230.33V
30% 15.686A 3.474A 3.508A 1.401A 224.91 93.042% 0 <6.0 46.35°C 0.939
12.040V 5.037V 3.292V 4.995V 241.733 41.02°C 230.32V
40% 21.504A 3.973A 4.01A 1.606A 299.991 93.223% 0 <6.0 48.26°C 0.959
12.034V 5.034V 3.291V 4.983V 321.802 42.28°C 230.32V
50% 26.927A 4.971A 5.016A 1.811A 374.375 93.044% 440 10.1 42.65°C 0.972
12.028V 5.029V 3.289V 4.97V 402.366 49.11°C 230.31V
60% 32.399A 5.971A 6.023A 2A 449.221 92.807% 441 10.1 43.32°C 0.98
12.022V 5.025V 3.287V 4.958V 484.042 50.39°C 230.3V
70% 37.880A 6.972A 7.031A 2.225A 524.255 92.43% 442 10.1 43.86°C 0.985
12.016V 5.021V 3.285V 4.944V 567.192 51.41°C 230.29V
80% 43.431A 7.974A 8.037A 2.331A 599.478 91.946% 803 24.0 44.28°C 0.988
12.009V 5.017V 3.284V 4.934V 651.984 52.45°C 230.28V
90% 49.322A 8.477A 8.529A 2.437A 674.513 91.451% 993 30.2 44.84°C 0.989
12.003V 5.013V 3.282V 4.925V 737.569 53.92°C 230.27V
100% 55.022A 8.983A 9.051A 3.064A 749.743 90.851% 997 30.3 45.28°C 0.99
11.996V 5.009V 3.28V 4.897V 825.246 55.37°C 230.26V
110% 60.595A 9.989A 10.153A 3.068A 824.779 90.091% 1482 41.6 47.06°C 0.991
11.989V 5.005V 3.279V 4.89V 915.502 57.98°C 230.24V
CL1 0.116A 14.345A 14.505A 0A 121.278 86.477% 0 <6.0 43.33°C 0.882
12.042V 5.033V 3.288V 5.041V 140.236 37.89°C 230.34V
CL2 0.115A 19.841A 0A 0A 101.382 85.581% 0 <6.0 42.21°C 0.858
12.048V 5.04V 3.291V 5.066V 118.46 35.12°C 230.34V
CL3 0.115A 0A 20.021A 0A 67.377 79.967% 453 10.6 39.18°C 0.794
12.044V 5.048V 3.296V 5.042V 84.257 48.23°C 230.34V
CL4 62.445A 0A 0A 0A 749.534 91.478% 996 30.3 45.18°C 0.99
12.003V 5.028V 3.292V 5.043V 819.372 55.99°C 230.26V

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 1.232A 0.495A 0.5A 0.197A 20 76.186% 0 <6.0 40.39°C 0.823
12.059V 5.053V 3.3V 5.067V 26.251 37.34°C 115.16V
40W 2.711A 0.693A 0.7A 0.296A 39.996 84.157% 0 <6.0 41.27°C 0.913
12.057V 5.053V 3.3V 5.061V 47.526 37.99°C 115.15V
60W 4.191A 0.891A 0.9A 0.396A 59.993 87.214% 0 <6.0 42.36°C 0.943
12.055V 5.052V 3.3V 5.056V 68.787 38.59°C 115.15V
80W 5.668A 1.089A 1.1A 0.495A 79.95 88.883% 0 <6.0 43.42°C 0.957
12.053V 5.051V 3.299V 5.049V 89.947 39.44°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 1.230A 0.495A 0.5A 0.197A 19.985 76.849% 0 <6.0 39.62°C 0.517
12.060V 5.051V 3.299V 5.065V 26.005 36.52°C 230.31V
40W 2.710A 0.693A 0.7A 0.296A 39.985 84.985% 0 <6.0 40.35°C 0.645
12.057V 5.05V 3.299V 5.06V 47.051 37.07°C 230.31V
60W 4.190A 0.891A 0.9A 0.396A 59.984 88.242% 0 <6.0 40.89°C 0.741
12.055V 5.05V 3.298V 5.054V 67.975 37.44°C 230.32V
80W 5.666A 1.089A 1.1A 0.495A 79.922 90.12% 0 <6.0 41.87°C 0.803
12.054V 5.049V 3.298V 5.048V 88.683 38.06°C 230.32V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load7.86mV6.24mV10.13mV10.40mVPass
20% Load8.37mV7.47mV11.92mV11.62mVPass
30% Load9.65mV7.77mV12.69mV16.36mVPass
40% Load9.96mV8.13mV13.05mV33.44mVPass
50% Load11.34mV8.90mV14.89mV48.33mVPass
60% Load12.05mV10.07mV14.79mV43.08mVPass
70% Load13.18mV11.25mV16.22mV38.13mVPass
80% Load14.81mV12.84mV18.84mV38.54mVPass
90% Load15.94mV14.06mV21.39mV34.72mVPass
100% Load23.51mV18.18mV21.88mV27.61mVPass
110% Load25.54mV19.17mV22.74mV25.68mVPass
Crossload116.04mV19.83mV21.56mV20.19mVPass
Crossload211.75mV12.68mV12.23mV18.45mVPass
Crossload39.55mV18.46mV22.88mV17.64mVPass
Crossload422.78mV9.86mV13.87mV22.40mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load7.92mV6.49mV10.95mV14.48mVPass
20% Load8.38mV7.21mV11.92mV12.13mVPass
30% Load9.45mV7.77mV13.31mV21.10mVPass
40% Load9.60mV8.13mV13.87mV33.92mVPass
50% Load10.83mV9.46mV14.54mV41.81mVPass
60% Load13.13mV10.18mV15.81mV40.24mVPass
70% Load13.43mV11.66mV15.86mV36.82mVPass
80% Load15.38mV13.40mV19.70mV32.83mVPass
90% Load15.99mV15.03mV20.68mV35.27mVPass
100% Load23.63mV19.31mV21.97mV28.24mVPass
110% Load25.17mV20.56mV21.94mV29.40mVPass
Crossload115.86mV19.95mV20.82mV21.36mVPass
Crossload211.39mV12.99mV12.54mV19.78mVPass
Crossload310.42mV18.61mV23.65mV17.49mVPass
Crossload422.75mV10.04mV14.49mV22.93mVPass

The results above are not used in the certification process

Cooler Master V750i Gold

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