CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Cooler Master V850 Gold (#2)
Serial NumberMPY8501AFAAGV1184300028
Lab ID622
  • Report: 19PS622A
  • Receipt Date: Jul 27, 2019
  • Test Date: Jul 30, 2019
  • Report Date: Aug 2, 2019
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandCooler Master
Manufacturer (OEM)Chicony Electronics
SeriesV Gold Series
Model Number
Serial NumberMPY8501AFAAGV1184300028
DUT NotesMPY-8501-AFAAGV

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)13-6
Rated Frequency (Hz)50-60
Rated Power (W)850
TypeATX12V
Cooling135mm Fluid Dynamic Bearing Fan
(APISTEK SAC4H2H)
Semi-Passive Operation✓ (selectable)
Cable DesignFully Modular

Power Specifications

Rail 3.3V 5V 12V 5VSB -12V
Max. Power Amps 20 20 70.4 3 0.3
Watts 130 844 15 3.6
Total Max. Power (W) 850

Test Equipment

Electronic Loads Chroma 6314A x2 63123A x6 63102A 63101A Chroma 63601-5 x4 Chroma 63600-2 x2 63640-80-80 x20 63610-80-20 x2
AC Sources Chroma 6530, Chroma 61604, Keysight AC6804B
Power Analyzers N4L PPA1530 x2, N4L PPA5530
Oscilloscopes Picoscope 4444 & 3424, Keysight DSOX3024A, Rigol DS2072A
Voltmeter Keithley 2015 THD 6.5 Digit
Sound Analyzer Bruel & Kjaer 2250-L G4
Microphone Bruel & Kjaer Type 4955-A, Bruel & Kjaer Type 4189
Data Loggers Picoscope TC-08 x2, Labjack U3-HV x2
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 (600mm+120mm) 3 6 18AWG No
SATA (500mm+120mm+120mm+120mm) 3 12 18AWG No
4 pin Molex (500mm+120mm+120mm+120mm) 1 4 18AWG No
FDD Adapter (125mm) 1 1 22AWG No
AC Power Cord (1350mm) - C13 coupler 1 1 18AWG -

Parts Description

General Data
Manufacturer (OEM) Chicony
PCB Type Single Layer 
Primary Side
Transient Filter 4x Y caps, 2x X caps, 2x CM chokes
Inrush Protection -
Bridge Rectifier(s) 2x GBU15JL (600V, 15A @ 115°C)
APFC MOSFETS 2x Infineon IPA60R120P7 (650V, 16A @ 100°C, 0.12Ohm)
APFC Boost Diode 1x CREE C3D10060A (600V, 10A @ 150°C)
Hold-up Cap(s) 1x Nichicon (450V, 560uF, 2000h @ 105 °C, GL)
Main Switchers 2x Toshiba TK25A60X (600V, 25A @ 150°C, 0.125Ohm)
APFC Controller Infineon ICE3PCS03G
Resonant Controllers MPS HR1000A & 2x MPS MP6903 (Installed on the secondary side)
Topology Primary side: Half-Bridge & LLC Resonant Controller Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side
+12V MOSFETS 6x Nexperia PSMN2R6-40YS (40V, 100A @ 25°C, 3.7mOhm)
5V & 3.3V DC-DC Converters: 6x APEC AP0403GH (30V, 50A @ 100°C, 4.5mOhm) PWM Controller: 2x APW7160A
Filtering Capacitors Electrolytics: 4x Rubycon (6-10,000h @ 105°C, ZLH), 2x Chemi-Con (4-10,000h @ 105°C, KY), 1x Nippon Chemi-Con (1-5,000h @ 105°C, KZE), Polymers: FPCAP (FP5), Chemi-Con
Supervisor IC CP006WD
Fan Model APISTEK SAC4H2H (135mm, 12V, 0.50A, 111.1CFM, 41.6 dBA, Fluid Dynamic Bearing)
5VSB Circuit
Rectifier UTC 4N60K-MK FET (600V, 4A @ 25°C, 2.5Ohm) & MBR20100CTG SBR (100V, 1A)
Standby PWM Controller 400BBBBB2 PAJH

Test Results

Temperature & Compliance Info

Temperature Range (°C /°F)30-32 / 86-89.6
ErP Lot 3/6 Ready✓
(EU) No 617/2013 Compliance✓

Performance Summary 115V

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)23.6
AC Loss to PWR_OK Hold Up Time (ms)18.8
PWR_OK Inactive to DC Loss Delay (ms)4.8

Vampire Power

Graphs 115V

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.

Efficiency Graph

115V

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

115V

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) 115V

Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.229 62.398% 0.053
5.072V 0.367 115.12V
2 0.090A 0.457 70.525% 0.090
5.069V 0.648 115.12V
3 0.550A 2.774 79.530% 0.276
5.043V 3.488 115.12V
4 1.000A 5.018 79.411% 0.325
5.016V 6.319 115.12V
5 1.500A 7.482 79.368% 0.351
4.987V 9.427 115.12V
6 3.000A 14.688 78.361% 0.388
4.896V 18.744 115.12V

Supplementary Tests (For Reference)

Typical Load Tests 115V

Test # 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
1 5.195A 1.964A 1.968A 0.999A 84.930 86.049% 0 <6.0 44.87°C 0.975
12.191V 5.092V 3.352V 5.005V 98.700 40.19°C 115.14V
2 11.377A 2.933A 2.934A 1.203A 169.398 89.832% 0 <6.0 45.81°C 0.992
12.173V 5.116V 3.374V 4.988V 188.572 40.62°C 115.13V
3 17.973A 3.426A 3.416A 1.409A 254.500 90.884% 0 <6.0 47.20°C 0.993
12.157V 5.109V 3.365V 4.971V 280.026 41.20°C 115.13V
4 24.484A 3.932A 3.933A 1.615A 339.715 90.708% 1197 34.0 41.69°C 0.995
12.192V 5.088V 3.355V 4.957V 374.515 48.47°C 115.13V
5 30.586A 4.930A 4.930A 1.821A 424.962 90.646% 1219 34.5 42.34°C 0.996
12.243V 5.072V 3.345V 4.943V 468.815 49.66°C 115.11V
6 36.777A 5.927A 5.892A 2.030A 509.477 90.259% 1323 36.6 42.52°C 0.996
12.227V 5.062V 3.361V 4.926V 564.462 50.24°C 115.11V
7 43.056A 6.884A 6.892A 2.241A 594.815 89.690% 1402 38.1 43.13°C 0.997
12.210V 5.085V 3.351V 4.909V 663.187 51.32°C 115.11V
8 49.349A 7.882A 7.899A 2.454A 680.157 88.972% 1524 40.0 43.83°C 0.997
12.194V 5.075V 3.341V 4.891V 764.458 52.86°C 115.11V
9 56.042A 8.388A 8.335A 2.456A 764.975 88.346% 1538 40.2 44.20°C 0.997
12.178V 5.066V 3.359V 4.888V 865.890 53.69°C 115.11V
10 62.512A 8.896A 8.867A 3.099A 849.843 87.410% 1717 42.7 45.80°C 0.997
12.160V 5.058V 3.349V 4.842V 972.251 56.20°C 115.09V
11 69.581A 8.909A 8.886A 3.101A 934.620 86.473% 1781 43.5 46.62°C 0.997
12.143V 5.051V 3.342V 4.838V 1080.823 57.65°C 115.09V
CL1 0.142A 16.000A 15.999A 0.000A 138.397 82.940% 1380 37.7 42.72°C 0.992
12.176V 5.134V 3.408V 5.052V 166.864 49.75°C 115.12V
CL2 70.343A 1.002A 0.996A 1.000A 868.643 87.791% 1675 42.1 45.51°C 0.997
12.160V 5.007V 3.290V 4.978V 989.448 56.28°C 115.09V

The results above are not used in the certification process

Light Load Tests 115V

Test # 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) PF/AC Volts
1 1.189A 0.490A 0.473A 0.198A 19.611 45.795% 0 <6.0 0.910
12.217V 5.091V 3.361V 5.059V 42.823 115.14V
2 2.436A 0.981A 0.982A 0.397A 40.018 78.976% 0 <6.0 0.932
12.201V 5.092V 3.358V 5.046V 50.671 115.14V
3 3.612A 1.474A 1.459A 0.596A 59.457 83.322% 0 <6.0 0.959
12.197V 5.092V 3.356V 5.033V 71.358 115.14V
4 4.862A 1.966A 1.967A 0.797A 79.879 85.867% 0 <6.0 0.972
12.192V 5.090V 3.353V 5.019V 93.026 115.14V

The results above are not used in the certification process

Ripple Measurements 115V

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 6.1 mV 6.3 mV 12.0 mV 9.6 mV Pass
20% Load 8.1 mV 6.7 mV 12.3 mV 11.2 mV Pass
30% Load 8.9 mV 7.7 mV 13.7 mV 12.7 mV Pass
40% Load 10.3 mV 9.2 mV 13.8 mV 13.1 mV Pass
50% Load 11.1 mV 9.4 mV 14.4 mV 19.3 mV Pass
60% Load 12.2 mV 10.7 mV 15.9 mV 23.6 mV Pass
70% Load 14.8 mV 10.9 mV 17.9 mV 30.3 mV Pass
80% Load 16.8 mV 11.4 mV 19.2 mV 37.9 mV Pass
90% Load 18.2 mV 11.7 mV 18.4 mV 47.2 mV Pass
100% Load 23.5 mV 12.4 mV 20.3 mV 58.2 mV Fail
110% Load 26.6 mV 12.4 mV 20.8 mV 61.4 mV Fail
Crossload 1 9.7 mV 8.9 mV 18.2 mV 10.5 mV Pass
Crossload 2 22.3 mV 9.9 mV 15.5 mV 18.7 mV Pass

The results above are not used in the certification process

Cooler Master V850 Gold (#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