CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Thermaltake Toughpower SFX 850W
Serial NumberPSSTP0850FNFAGU1SV000120
Lab IDTT85002125
  • Report: 23PS2125A
  • Receipt Date: Dec 19, 2022
  • Test Date: Feb 1, 2023
  • Report Date: Feb 9, 2023
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandThermaltake
Manufacturer (OEM)Jiu Zhou Yang Guang Power Supply (HKC)
SeriesToughpower SFX
Model NumberPS-STP-0850FNFAGU-1
Serial NumberPSSTP0850FNFAGU1SV000120
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)10
Rated Frequency (Hz)50-60
Rated Power (W)850
TypeSFX
Cooling92mm Fluid Dynamic Bearing Fan
[TT-0925 (AV-F9215HS)]
Semi-Passive Operation✓
Cable DesignFully Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps202070.830.3
Watts100849.6153.6
Total Max. Power (W)850

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 (300mm) 1 1 16-18AWG No
4+4 pin EPS12V (400mm) 2 2 16AWG No
6+2 pin PCIe (400mm+150mm) 1 2 16-18AWG No
12+4 pin PCIe (400mm) (600W) 1 1 16-26AWG No
SATA (310mm+150mm+150mm+150mm) 2 8 18AWG No
4-pin Molex (300mm+145mm+145mm+145mm) 1 4 18AWG No
FDD Adapter (150mm) 1 1 22AWG No
AC Power Cord (1380mm) - C13 coupler 1 1 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✓
ALPM (Alternative Low Power Mode) compatible✓
ATX v3.0 Compliance✓

Performance Summary 115V

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)21.7
AC Loss to PWR_OK Hold Up Time (ms)20.4
PWR_OK Inactive to DC Loss Delay (ms)1.3

Vampire Power

Tables 115V

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.11 V 115.06 V 113.85 V 115.14 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.99 Hz 59.40 Hz 60.01 Hz 60.60 Hz PASS
Mains Voltage CF: 1.416 1.415 1.340 1.418 1.490 PASS
Mains Voltage THD: 0.13 % 0.10 % N/A 0.18 % 2.00 % PASS
Real Power: 0.030 W 0.010 W N/A 0.056 W N/A N/A
Apparent Power: 10.962 W 10.874 W N/A 11.045 W N/A N/A
Power Factor: 0.004 N/A N/A N/A N/A N/A

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 0.229W 64.028% 0.033
5.093V 0.358W 115.1V
2 0.09A 0.458W 70.741% 0.058
5.092V 0.648W 115.09V
3 0.55A 2.793W 78.099% 0.249
5.078V 3.576W 115.1V
4 1A 5.064W 78.732% 0.324
5.065V 6.432W 115.09V
5 1.5A 7.574W 78.887% 0.375
5.049V 9.601W 115.09V
6 2.999A 15.007W 77.42% 0.44
5.003V 19.384W 115.09V

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
10% 5.240A 1.974A 1.977A 0.989A 84.99 87.413% 1431 26.4 40.19°C 0.938
12.099V 5.065V 3.338V 5.057V 97.228 44.29°C 115.07V
20% 11.508A 2.966A 2.972A 1.189A 169.927 90.337% 1963 35 40.53°C 0.967
12.081V 5.058V 3.331V 5.045V 188.103 44.86°C 115.05V
30% 18.144A 3.464A 3.475A 1.391A 254.922 91.348% 2103 37.5 41.22°C 0.973
12.063V 5.052V 3.324V 5.034V 279.063 45.96°C 115.03V
40% 24.805A 3.965A 3.979A 1.593A 340.001 91.527% 2195 38.5 41.53°C 0.98
12.046V 5.045V 3.317V 5.022V 371.477 46.56°C 115V
50% 31.112A 4.963A 4.986A 1.797A 424.745 91.272% 2344 41.3 42.24°C 0.985
12.028V 5.038V 3.309V 5.009V 465.356 47.72°C 114.98V
60% 37.417A 5.963A 5.997A 2A 509.252 90.857% 2472 42.2 42.63°C 0.988
12.012V 5.032V 3.302V 4.997V 560.496 48.73°C 114.95V
70% 43.812A 6.967A 7.014A 2.207A 594.567 90.323% 2552 43 43°C 0.991
11.994V 5.025V 3.294V 4.983V 658.267 50.02°C 114.93V
80% 50.224A 7.974A 8.031A 2.312A 679.376 89.647% 2702 44 43.46°C 0.992
11.976V 5.018V 3.286V 4.973V 757.845 51.53°C 114.9V
90% 57.062A 8.48A 8.537A 2.417A 764.765 88.903% 2746 44.6 44.27°C 0.993
11.957V 5.011V 3.278V 4.963V 860.22 53.4°C 114.87V
100% 63.655A 8.993A 9.077A 3.038A 849.537 88.085% 2979 46.5 45.13°C 0.993
11.937V 5.003V 3.27V 4.936V 964.453 55.21°C 114.84V
110% 70.130A 10.006A 10.206A 3.045A 934.138 86.772% 3100 48.3 47.17°C 0.982
11.919V 4.996V 3.261V 4.926V 1076.552 57.99°C 114.83V
CL1 0.114A 11.898A 11.943A 0A 101.252 85.425% 2238 38.8 40.71°C 0.942
12.099V 5.058V 3.323V 5.08V 118.531 45.99°C 115.07V
CL2 0.114A 19.749A 0A 0A 101.376 83.968% 2140 39.3 41.76°C 0.943
12.106V 5.063V 3.325V 5.084V 120.728 49.04°C 115.07V
CL4 71.176A 0A 0A 0A 849.479 88.212% 2998 46.9 45.24°C 0.991
11.936V 5.014V 3.285V 5.045V 962.996 56.19°C 114.84V

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]) Temps (In/Out) PF/AC Volts
20W 1.232A 0.493A 0.493A 0.197A 19.993 76.879% 0 <6.0 40.09°C 0.793
12.044V 5.071V 3.345V 5.087V 26.006 37.01°C 115.09V
40W 2.699A 0.69A 0.691A 0.295A 39.99 82.537% 0 <6.0 40.57°C 0.877
12.109V 5.07V 3.343V 5.082V 48.452 37.28°C 115.09V
60W 4.174A 0.888A 0.889A 0.394A 59.988 85.868% 896 12.1 37.49°C 0.913
12.102V 5.068V 3.341V 5.078V 69.864 41.28°C 115.08V
80W 5.646A 1.086A 1.087A 0.493A 79.942 87.769% 1315 22.9 39.11°C 0.934
12.098V 5.066V 3.34V 5.074V 91.082 43.08°C 115.07V

The results above are not used in the certification process

Ripple Measurements 115V

Test12V5V3.3V5VSBPass/Fail
10% Load13.35mV7.98mV6.92mV22.21mVPass
20% Load10.97mV14.33mV6.82mV18.22mVPass
30% Load9.34mV10.27mV6.87mV15.38mVPass
40% Load9.29mV18.39mV6.88mV16.50mVPass
50% Load12.66mV18.45mV7.84mV22.36mVPass
60% Load12.08mV17.28mV7.48mV21.10mVPass
70% Load9.14mV16.36mV7.48mV24.80mVPass
80% Load9.97mV18.91mV8.80mV24.89mVPass
90% Load11.95mV19.77mV8.39mV23.98mVPass
100% Load17.69mV13.17mV9.42mV29.69mVPass
110% Load20.50mV15.83mV9.78mV30.60mVPass
Crossload115.65mV9.11mV9.56mV7.31mVPass
Crossload212.63mV14.18mV10.16mV16.39mVPass
Crossload418.95mV10.75mV8.45mV13.44mVPass

The results above are not used in the certification process

Thermaltake Toughpower SFX 850W

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