CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Seasonic Vertex GX-850
Serial Number
Lab IDSS85002116
  • Report: 23PS2116A
  • Receipt Date: Dec 12, 2022
  • Test Date: Jan 20, 2023
  • Report Date: Jan 20, 2023
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandSeasonic
Manufacturer (OEM)Seasonic
SeriesVertex GX
Model Number12851GXAFS
Serial Number
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)11-5.5
Rated Frequency (Hz)50-60
Rated Power (W)850
TypeATX12V
Cooling135mm Fluid Dynamic Bearing Fan
(HA13525H12F-Z)
Semi-Passive Operation✓ (selectable)
Cable DesignFully Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps20207030.3
Watts100840153.6
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 (620mm) 1 1 16-18AWG No
4+4 pin EPS12V (710mm) 2 2 16AWG No
6+2 pin PCIe (760mm) 3 3 16AWG No
12+4 pin PCIe (760mm) (600W) 1 1 16-28AWG No
SATA 3.3 (410mm+150mm) 1 2 18AWG No
SATA (510mm+150mm+150mm+150mm) 4 16 18AWG No
4-pin Molex (460mm+130mm+130mm) 1 3 18AWG No
AC Power Cord (1400mm) - 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

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)25.9
AC Loss to PWR_OK Hold Up Time (ms)21.3
PWR_OK Inactive to DC Loss Delay (ms)4.6

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.15 V 115.14 V 113.85 V 115.17 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.94 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 % 0.11 % N/A 0.15 % 2.00 % PASS
Real Power: 0.066 W 0.061 W N/A 0.071 W N/A N/A
Apparent Power: 9.983 W 9.979 W N/A 9.986 W N/A N/A
Power Factor: 0.007 N/A N/A N/A N/A N/A
Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 230.37 V 230.35 V 227.70 V 230.39 V 232.30 V PASS
Mains Frequency: 50.00 Hz 50.00 Hz 49.50 Hz 50.00 Hz 50.50 Hz PASS
Mains Voltage CF: 1.415 1.415 1.340 1.416 1.490 PASS
Mains Voltage THD: 0.15 % 0.13 % N/A 0.16 % 2.00 % PASS
Real Power: 0.140 W 0.125 W N/A 0.153 W N/A N/A
Apparent Power: 33.395 W 33.387 W N/A 33.404 W N/A N/A
Power Factor: 0.004 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 0.231W 65.88% 0.035
5.141V 0.351W 115.15V
2 0.09A 0.463W 72.616% 0.063
5.14V 0.638W 115.15V
3 0.55A 2.823W 81.327% 0.269
5.13V 3.471W 115.16V
4 1A 5.123W 81.874% 0.372
5.121V 6.257W 115.15V
5 1.5A 7.668W 81.284% 0.428
5.11V 9.433W 115.15V
6 3A 15.234W 79.215% 0.502
5.077V 19.231W 115.15V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.231W 52.673% 0.013
5.14V 0.439W 230.38V
2 0.09A 0.463W 63.155% 0.022
5.14V 0.733W 230.38V
3 0.55A 2.822W 78.671% 0.103
5.13V 3.588W 230.38V
4 1A 5.122W 80.481% 0.17
5.121V 6.363W 230.37V
5 1.5A 7.668W 80.357% 0.231
5.111V 9.543W 230.37V
6 3A 15.239W 81.034% 0.338
5.079V 18.805W 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% 5.180A 1.989A 1.987A 0.978A 84.998 84.819% 0 <6.0 44.58°C 0.968
12.240V 5.028V 3.322V 5.112V 100.213 40.24°C 115.13V
20% 11.378A 2.986A 2.982A 1.176A 169.957 89.851% 0 <6.0 45.51°C 0.98
12.220V 5.025V 3.32V 5.101V 189.151 40.69°C 115.11V
30% 17.920A 3.485A 3.48A 1.375A 254.966 91.385% 0 <6.0 46.23°C 0.986
12.216V 5.022V 3.319V 5.092V 278.997 41.05°C 115.09V
40% 24.466A 3.986A 3.979A 1.574A 340.058 91.404% 0 <6.0 47.18°C 0.989
12.215V 5.019V 3.318V 5.082V 372.035 41.51°C 115.06V
50% 30.663A 4.986A 4.976A 1.775A 424.958 91.101% 757 20.4 42.24°C 0.989
12.212V 5.015V 3.316V 5.073V 466.473 48.25°C 115.04V
60% 36.834A 5.987A 5.974A 1.976A 509.496 90.628% 754 20.3 42.56°C 0.989
12.208V 5.012V 3.315V 5.063V 562.188 49.27°C 115.01V
70% 43.058A 6.99A 6.972A 2.177A 594.836 90.103% 832 23.5 43.27°C 0.989
12.209V 5.009V 3.314V 5.052V 660.17 50.33°C 114.98V
80% 49.282A 7.994A 7.97A 2.28A 679.672 89.452% 918 26.6 43.58°C 0.99
12.211V 5.005V 3.312V 5.044V 759.819 51.63°C 114.95V
90% 55.897A 8.497A 8.456A 2.383A 765.098 88.753% 1003 29.1 44.16°C 0.991
12.212V 5.002V 3.311V 5.036V 862.059 53.21°C 114.93V
100% 62.244A 9.002A 8.973A 2.99A 849.933 87.887% 1196 34.4 45.13°C 0.992
12.214V 4.999V 3.31V 5.018V 967.074 55.14°C 114.91V
110% 68.457A 10.008A 10.064A 2.994A 934.507 87.015% 1335 38.7 46.84°C 0.993
12.216V 4.996V 3.308V 5.011V 1073.957 57.78°C 114.88V
CL1 0.114A 11.987A 11.977A 0A 101.291 82.617% 654 6.1 40.31°C 0.973
12.247V 5.022V 3.314V 5.118V 122.605 45.82°C 115.13V
CL2 0.114A 19.89A 0A 0A 101.391 81.578% 803 22.1 41.94°C 0.973
12.254V 5.027V 3.313V 5.128V 124.286 48.95°C 115.13V
CL3 0.114A 0A 19.868A 0A 67.397 73.981% 806 22.2 42.87°C 0.96
12.249V 5.025V 3.322V 5.113V 91.098 52.01°C 115.14V
CL4 69.567A 0A 0A 0A 849.827 88.351% 1264 36.4 45.32°C 0.992
12.216V 5.007V 3.318V 5.09V 961.882 56.3°C 114.9V

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% 5.180A 1.989A 1.987A 0.978A 84.994 85.547% 0 <6.0 44.44°C 0.826
12.237V 5.028V 3.322V 5.113V 99.354 40.05°C 230.34V
20% 11.380A 2.986A 2.982A 1.176A 169.941 91.242% 0 <6.0 45.23°C 0.916
12.217V 5.025V 3.32V 5.103V 186.254 40.55°C 230.33V
30% 17.924A 3.485A 3.48A 1.375A 254.948 92.673% 0 <6.0 46.31°C 0.945
12.212V 5.022V 3.319V 5.093V 275.108 41.03°C 230.33V
40% 24.472A 3.986A 3.978A 1.574A 340.044 93.189% 0 <6.0 47.28°C 0.962
12.212V 5.019V 3.318V 5.083V 364.896 41.57°C 230.32V
50% 30.666A 4.986A 4.976A 1.774A 424.922 93.063% 757 20.4 42.09°C 0.969
12.209V 5.015V 3.316V 5.074V 456.593 48.21°C 230.32V
60% 36.834A 5.987A 5.974A 1.975A 509.463 92.879% 754 20.3 42.47°C 0.974
12.208V 5.012V 3.315V 5.064V 548.526 49.12°C 230.31V
70% 43.058A 6.99A 6.973A 2.177A 594.809 92.609% 832 23.5 43.02°C 0.977
12.209V 5.009V 3.313V 5.053V 642.279 50.08°C 230.3V
80% 49.283A 7.994A 7.97A 2.28A 679.661 92.222% 919 26.6 43.46°C 0.98
12.210V 5.005V 3.312V 5.045V 736.981 51.49°C 230.29V
90% 55.899A 8.496A 8.455A 2.383A 765.094 91.836% 1006 29.2 44.04°C 0.982
12.211V 5.002V 3.311V 5.037V 833.109 53.14°C 230.28V
100% 62.248A 9.002A 8.972A 2.99A 849.936 91.358% 1174 33.8 45.19°C 0.984
12.213V 4.999V 3.31V 5.018V 930.337 55.27°C 230.27V
110% 68.460A 10.008A 10.065A 2.994A 934.532 90.842% 1336 38.8 47.02°C 0.985
12.215V 4.996V 3.308V 5.011V 1028.755 57.93°C 230.26V
CL1 0.114A 11.987A 11.977A 0A 101.294 83.796% 653 <6.0 40.56°C 0.861
12.247V 5.022V 3.314V 5.117V 120.881 46.01°C 230.37V
CL2 0.114A 19.889A 0A 0A 101.392 82.749% 805 22.2 41.76°C 0.863
12.252V 5.028V 3.313V 5.128V 122.531 49.01°C 230.37V
CL3 0.114A 0A 19.868A 0A 67.397 74.494% 804 22.1 42.85°C 0.806
12.248V 5.025V 3.322V 5.113V 90.475 51.89°C 230.37V
CL4 69.581A 0A 0A 0A 849.792 91.893% 1218 34.9 45.05°C 0.983
12.213V 5.007V 3.318V 5.09V 924.769 55.88°C 230.27V

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 1.227A 0.497A 0.496A 0.195A 20 75.256% 0 <6.0 39.65°C 0.833
12.103V 5.033V 3.325V 5.134V 26.574 36.55°C 115.15V
40W 2.700A 0.696A 0.695A 0.292A 39.997 81.163% 0 <6.0 40.42°C 0.917
12.108V 5.031V 3.324V 5.13V 49.281 37.07°C 115.15V
60W 4.172A 0.895A 0.894A 0.39A 59.996 83.484% 0 <6.0 41.89°C 0.952
12.109V 5.031V 3.323V 5.127V 71.865 38.17°C 115.14V
80W 5.582A 1.094A 1.092A 0.488A 79.956 84.766% 0 <6.0 43.13°C 0.962
12.239V 5.03V 3.323V 5.123V 94.319 39.18°C 115.13V

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 1.226A 0.497A 0.496A 0.195A 19.99 74.648% 0 <6.0 39.59°C 0.486
12.098V 5.033V 3.324V 5.135V 26.773 36.54°C 230.33V
40W 2.700A 0.696A 0.695A 0.292A 39.99 81.042% 0 <6.0 40.36°C 0.639
12.104V 5.031V 3.323V 5.132V 49.345 37.05°C 230.33V
60W 4.174A 0.895A 0.893A 0.39A 59.989 84.058% 0 <6.0 41.73°C 0.744
12.105V 5.031V 3.323V 5.128V 71.363 38.17°C 230.33V
80W 5.584A 1.093A 1.092A 0.488A 79.936 85.324% 0 <6.0 42.88°C 0.818
12.234V 5.03V 3.323V 5.125V 93.687 39.06°C 230.33V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load8.27mV5.83mV8.29mV13.25mVPass
20% Load23.43mV5.52mV7.83mV10.50mVPass
30% Load16.79mV4.91mV7.63mV10.40mVPass
40% Load13.98mV5.37mV7.88mV11.52mVPass
50% Load13.52mV8.59mV8.39mV23.15mVPass
60% Load13.88mV8.80mV9.16mV23.81mVPass
70% Load14.49mV9.20mV9.62mV24.63mVPass
80% Load14.13mV9.72mV13.66mV25.54mVPass
90% Load14.71mV10.69mV14.02mV25.85mVPass
100% Load23.35mV12.10mV16.01mV27.81mVPass
110% Load23.22mV12.55mV16.72mV28.22mVPass
Crossload19.38mV9.81mV15.18mV25.13mVPass
Crossload27.82mV11.30mV8.91mV23.71mVPass
Crossload310.27mV10.48mV17.09mV23.65mVPass
Crossload411.78mV11.94mV11.78mV29.07mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load8.22mV5.78mV8.39mV13.97mVPass
20% Load26.39mV5.52mV7.62mV9.99mVPass
30% Load18.63mV5.27mV7.42mV10.71mVPass
40% Load15.31mV5.42mV8.08mV11.52mVPass
50% Load14.80mV8.95mV8.39mV24.16mVPass
60% Load15.20mV9.16mV9.01mV24.47mVPass
70% Load16.33mV9.36mV9.52mV25.70mVPass
80% Load15.82mV9.97mV13.25mV26.41mVPass
90% Load15.26mV10.07mV14.02mV25.85mVPass
100% Load23.82mV11.85mV15.39mV27.09mVPass
110% Load24.77mV12.62mV17.26mV28.09mVPass
Crossload18.94mV7.06mV14.16mV13.62mVPass
Crossload27.81mV11.10mV8.34mV23.71mVPass
Crossload310.06mV10.64mV16.94mV23.91mVPass
Crossload424.23mV12.24mV11.28mV28.16mVPass

The results above are not used in the certification process

Seasonic Vertex GX-850

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