CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
BitFenix Formula Gold 550W
Serial Number
Lab ID158
  • Report: 20PS158A
  • Receipt Date: Sep 28, 2018
  • Test Date: Oct 5, 2018
  • Report Date: Oct 8, 2018
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandBitfenix
Manufacturer (OEM)Channel Well Technology
SeriesFormula Gold Series
Model NumberBF550G
Serial Number
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)8
Rated Frequency (Hz)47-63
Rated Power (W)550
TypeATX12V
Cooling120mm Rifle Bearing Fan
(DF1202512SELN)
Semi-Passive Operation✗
Cable DesignFixed cables

Power Specifications

Rail 3.3V 5V 12V1 12V2 12V3 5VSB -12V
Max. Power Amps 20 20 25 25 30 2.5 0.3
Watts 100 550 12.5 3.6
Total Max. Power (W) 550

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

Captive Cables
Description Cable Count Connector Count (Total) Gauge
ATX connector 20+4 pin (660mm) 1 1 18-22AWG
4+4 pin EPS12V (660mm) 1 1 18AWG
6+2 pin PCIe (570mm+150mm) 1 2 18AWG
SATA (460mm+150mm+150mm)+4 pin Molex (+150mm) 2 6 / 2 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)16.7
AC Loss to PWR_OK Hold Up Time (ms)14.7
PWR_OK Inactive to DC Loss Delay (ms)2

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 0.211 70.100% 0.030
5.080V 0.301 115.18V
2 0.087A 0.441 75.773% 0.057
5.079V 0.582 115.18V
3 0.542A 2.747 79.831% 0.264
5.067V 3.441 115.16V
4 1.002A 5.066 78.251% 0.371
5.056V 6.474 115.17V
5 1.501A 7.574 78.018% 0.428
5.045V 9.708 115.17V
6 2.501A 12.556 75.657% 0.484
5.020V 16.596 115.17V

Supplementary Tests (For Reference)

Typical Load Tests 115V

Test # 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) Fan Noise (dB[A]) Temps (In/Out) PF/AC Volts
1 2.736A 1.966A 1.962A 0.991A 54.735 85.126% 537 10.3 38.25°C 0.952
12.121V 5.080V 3.355V 5.047V 64.299 43.75°C 115.21V
2 6.513A 2.949A 2.949A 1.191A 109.747 89.397% 537 10.3 38.65°C 0.982
12.113V 5.078V 3.352V 5.033V 122.763 44.70°C 115.21V
3 10.638A 3.448A 3.458A 1.390A 164.831 90.609% 537 10.3 38.97°C 0.988
12.105V 5.075V 3.349V 5.020V 181.914 46.13°C 115.20V
4 14.762A 3.945A 3.941A 1.595A 219.749 90.995% 537 10.3 39.51°C 0.991
12.096V 5.073V 3.347V 5.006V 241.495 47.61°C 115.20V
5 18.548A 4.938A 4.932A 1.801A 274.742 90.710% 537 10.3 40.18°C 0.991
12.089V 5.069V 3.344V 4.992V 302.880 49.38°C 115.20V
6 22.347A 5.924A 5.926A 2.005A 329.707 90.312% 537 10.3 41.04°C 0.992
12.079V 5.065V 3.340V 4.977V 365.077 51.97°C 115.19V
7 26.138A 6.919A 6.919A 2.214A 384.672 89.161% 597 13.3 42.28°C 0.992
12.073V 5.062V 3.338V 4.963V 431.470 53.56°C 115.20V
8 29.947A 7.904A 7.916A 2.424A 439.583 88.438% 854 21.2 43.64°C 0.992
12.062V 5.058V 3.334V 4.947V 497.051 56.02°C 115.19V
9 34.180A 8.415A 8.432A 2.426A 494.658 87.824% 1182 31.1 44.23°C 0.992
12.055V 5.055V 3.332V 4.940V 563.235 57.96°C 115.19V
10 38.378A 8.911A 8.921A 2.533A 549.514 87.135% 1278 32.8 45.30°C 0.993
12.046V 5.053V 3.329V 4.930V 630.650 59.21°C 115.19V
11 42.969A 8.918A 8.925A 2.537A 604.466 86.473% 1493 37.0 46.22°C 0.993
12.038V 5.050V 3.326V 4.921V 699.021 60.15°C 115.19V
CL1 0.098A 12.014A 12.006A 0.004A 102.120 84.083% 545 10.9 42.92°C 0.982
12.099V 5.063V 3.339V 5.042V 121.452 55.63°C 115.21V
CL2 45.783A 1.004A 1.002A 1.001A 565.745 87.943% 1317 33.9 45.21°C 0.993
12.064V 5.063V 3.341V 4.984V 643.308 58.48°C 115.19V

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) Fan Noise (dB[A]) PF/AC Volts
1 1.202A 0.491A 0.474A 0.196A 19.662 74.621% 537 10.3 0.800
12.129V 5.085V 3.359V 5.072V 26.349 115.21V
2 2.431A 0.981A 0.982A 0.391A 39.736 83.238% 537 10.3 0.920
12.125V 5.081V 3.356V 5.065V 47.738 115.20V
3 3.664A 1.468A 1.486A 0.590A 59.839 86.624% 537 10.3 0.956
12.121V 5.080V 3.355V 5.057V 69.079 115.20V
4 4.884A 1.964A 1.966A 0.790A 79.742 88.263% 537 10.3 0.971
12.118V 5.079V 3.354V 5.049V 90.346 115.20V

The results above are not used in the certification process

Ripple Measurements 115V

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 12.2 mV 6.6 mV 7.8 mV 12.5 mV Pass
20% Load 19.2 mV 7.6 mV 7.9 mV 11.3 mV Pass
30% Load 22.6 mV 8.3 mV 8.7 mV 14.9 mV Pass
40% Load 23.0 mV 9.5 mV 10.0 mV 13.9 mV Pass
50% Load 24.4 mV 10.0 mV 9.2 mV 14.9 mV Pass
60% Load 26.0 mV 10.3 mV 9.3 mV 15.6 mV Pass
70% Load 27.5 mV 11.5 mV 10.0 mV 24.9 mV Pass
80% Load 30.7 mV 13.3 mV 10.7 mV 23.7 mV Pass
90% Load 31.0 mV 13.2 mV 17.7 mV 24.8 mV Pass
100% Load 32.7 mV 16.9 mV 22.0 mV 21.5 mV Pass
110% Load 32.7 mV 18.5 mV 23.9 mV 22.0 mV Pass
Crossload 1 27.7 mV 13.5 mV 8.8 mV 10.7 mV Pass
Crossload 2 26.0 mV 17.8 mV 21.8 mV 24.0 mV Pass

The results above are not used in the certification process

BitFenix Formula Gold 550W

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