CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Bitfenix Whisper 750W (#2)
Serial Number713Q00321
Lab ID205
  • Report:
  • Receipt Date: Oct 17, 2018
  • Test Date: Oct 27, 2018
  • Report Date: Oct 30, 2018
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandBitfenix
Manufacturer (OEM)Channel Well Technology
SeriesWhisper
Model NumberBWG750M
Serial Number713Q00321
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)10
Rated Frequency (Hz)47-63
Rated Power (W)750
TypeATX12V
Cooling135mm Hydro Dynamic Bearing Fan
(DF1352512SEHN)
Semi-Passive Operation✗
Cable DesignFully Modular

Power Specifications

Rail 3.3V 5V 12V 12V 12V 12V 5VSB -12V
Max. Power Amps 22 22 25 25 35 35 2.5 0.5
Watts 120 750 12.5 6
Total Max. Power (W) 750

Test Equipment

Electronic Loads Chroma 6314A x2
63123A x6
63102A
63101A		 Chroma 63601-5 x2
Chroma 63600-2
63640-80-80 x10
63610-80-20
AC Sources Chroma 6530, Chroma 61604
Power Analyzers N4L PPA1530, 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
ATX connector 20+4 pin (610mm) 1 1 18AWG
4+4 pin EPS12V (650mm) 2 2 18AWG
6+2 pin PCIe (650mm+150mm) 2 4 18AWG
6+2 pin PCIe (650mm) 2 2 18AWG
SATA (500mm+150mm+150mm+150mm) 3 12 18AWG
4 pin Molex (500mm+150mm+150mm+150mm) 1 3 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✓

Performance Summary 115V

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)16.5
AC Loss to PWR_OK Hold Up Time (ms)14.1
PWR_OK Inactive to DC Loss Delay (ms)2.4

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 0.042A 0.213 67.834% 0.032
5.098V 0.314 115.11V
2 0.087A 0.445 74.916% 0.059
5.097V 0.594 115.11V
3 0.542A 2.757 79.338% 0.263
5.086V 3.475 115.12V
4 1.002A 5.086 78.066% 0.361
5.076V 6.515 115.12V
5 1.502A 7.607 77.949% 0.413
5.065V 9.759 115.12V
6 2.501A 12.615 75.679% 0.463
5.043V 16.669 115.11V

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 4.391A 1.974A 1.968A 0.985A 74.810 87.021% 455 10.9 37.85°C 0.961
12.123V 5.063V 3.346V 5.075V 85.968 44.18°C 115.08V
2 9.816A 2.960A 2.957A 1.181A 149.789 90.542% 455 10.9 38.27°C 0.977
12.116V 5.062V 3.344V 5.069V 165.436 46.47°C 115.08V
3 15.594A 3.457A 3.469A 1.381A 224.893 91.490% 470 11.5 38.42°C 0.983
12.108V 5.060V 3.343V 5.063V 245.811 50.06°C 115.08V
4 21.369A 3.952A 3.951A 1.580A 299.784 91.494% 455 10.9 39.31°C 0.983
12.102V 5.058V 3.340V 5.057V 327.655 54.67°C 115.08V
5 26.808A 4.949A 4.939A 1.780A 374.749 91.243% 455 10.9 40.43°C 0.983
12.095V 5.057V 3.339V 5.050V 410.715 56.51°C 115.08V
6 32.254A 5.932A 5.930A 1.981A 449.626 90.107% 627 16.1 41.32°C 0.982
12.087V 5.055V 3.338V 5.044V 498.990 58.11°C 115.07V
7 37.713A 6.928A 6.924A 2.180A 524.616 89.214% 1165 33.0 42.33°C 0.983
12.079V 5.053V 3.335V 5.038V 588.042 59.31°C 115.07V
8 43.174A 7.915A 7.919A 2.384A 599.572 88.269% 1603 41.1 42.92°C 0.984
12.072V 5.052V 3.333V 5.031V 679.256 60.31°C 115.07V
9 49.068A 8.422A 8.434A 2.385A 674.636 87.446% 1800 44.4 44.11°C 0.986
12.065V 5.050V 3.332V 5.030V 771.493 61.58°C 115.06V
10 54.933A 8.919A 8.917A 2.485A 749.531 86.788% 1800 44.4 45.37°C 0.987
12.057V 5.048V 3.330V 5.025V 863.634 63.26°C 115.06V
11 61.177A 8.919A 8.922A 2.485A 824.383 85.942% 1800 44.4 47.36°C 0.989
12.050V 5.047V 3.329V 5.024V 959.237 65.79°C 115.07V
CL1 0.100A 14.026A 14.005A 0.004A 118.993 84.604% 570 13.6 44.29°C 0.975
12.103V 5.059V 3.342V 5.098V 140.647 58.95°C 115.10V
CL2 62.455A 1.003A 1.003A 1.002A 767.002 87.235% 1800 44.4 45.63°C 0.987
12.065V 5.052V 3.334V 5.061V 879.237 60.97°C 115.08V

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 1.208A 0.491A 0.476A 0.196A 19.720 70.471% 455 10.9 0.863
12.119V 5.066V 3.349V 5.093V 27.983 115.08V
2 2.434A 0.979A 0.983A 0.391A 39.756 82.000% 455 10.9 0.927
12.127V 5.065V 3.347V 5.089V 48.483 115.08V
3 3.667A 1.476A 1.492A 0.590A 59.926 85.705% 455 10.9 0.953
12.124V 5.064V 3.347V 5.083V 69.921 115.08V
4 4.885A 1.974A 1.968A 0.786A 79.785 87.689% 470 11.5 0.966
12.122V 5.063V 3.345V 5.079V 90.986 115.08V

The results above are not used in the certification process

Ripple Measurements 115V

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 10.8 mV 5.6 mV 3.5 mV 4.5 mV Pass
20% Load 14.1 mV 5.7 mV 3.7 mV 6.0 mV Pass
30% Load 13.5 mV 5.9 mV 3.7 mV 6.0 mV Pass
40% Load 13.3 mV 6.7 mV 4.2 mV 7.8 mV Pass
50% Load 14.3 mV 6.6 mV 4.5 mV 9.0 mV Pass
60% Load 14.7 mV 6.6 mV 4.3 mV 11.6 mV Pass
70% Load 15.5 mV 6.8 mV 4.6 mV 18.1 mV Pass
80% Load 15.0 mV 12.2 mV 6.0 mV 21.8 mV Pass
90% Load 15.4 mV 22.4 mV 17.3 mV 23.7 mV Pass
100% Load 14.8 mV 9.6 mV 6.6 mV 22.1 mV Pass
110% Load 15.1 mV 9.1 mV 6.3 mV 17.0 mV Pass
Crossload 1 14.4 mV 7.1 mV 4.8 mV 3.1 mV Pass
Crossload 2 13.8 mV 8.5 mV 6.5 mV 17.0 mV Pass

The results above are not used in the certification process

Bitfenix Whisper 750W (#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