CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Seasonic Vertex GX-750
Serial Number
Lab IDSS75002120
  • Report: 23PS2120A
  • Receipt Date: Dec 12, 2022
  • Test Date: Jan 25, 2023
  • Report Date: Jan 25, 2023
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandSeasonic
Manufacturer (OEM)Seasonic
SeriesVertex GX
Model Number12751GXAFS
Serial Number
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)10-5
Rated Frequency (Hz)50-60
Rated Power (W)750
TypeATX12V
Cooling135mm Fluid Dynamic Bearing Fan
(HA13525H12F-Z)
Semi-Passive Operation✓ (selectable)
Cable DesignFully Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps20206230.3
Watts100744153.6
Total Max. Power (W)750

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) 2 2 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) 3 12 18AWG No
4-pin Molex (460mm+130mm+130mm) 1 3 18AWG No
AC Power Cord (1390mm) - 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)22.6
AC Loss to PWR_OK Hold Up Time (ms)17.8
PWR_OK Inactive to DC Loss Delay (ms)4.8

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 114.93 V 114.89 V 113.85 V 114.96 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.98 Hz 59.40 Hz 60.01 Hz 60.60 Hz PASS
Mains Voltage CF: 1.416 1.415 1.340 1.417 1.490 PASS
Mains Voltage THD: 0.14 % 0.12 % N/A 0.17 % 2.00 % PASS
Real Power: 0.070 W 0.062 W N/A 0.080 W N/A N/A
Apparent Power: 10.514 W 10.496 W N/A 10.532 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: 229.88 V 229.84 V 227.70 V 229.93 V 232.30 V PASS
Mains Frequency: 50.00 Hz 50.00 Hz 49.50 Hz 50.01 Hz 50.50 Hz PASS
Mains Voltage CF: 1.416 1.415 1.340 1.416 1.490 PASS
Mains Voltage THD: 0.13 % 0.11 % N/A 0.16 % 2.00 % PASS
Real Power: 0.149 W 0.126 W N/A 0.178 W N/A N/A
Apparent Power: 36.073 W 36.043 W N/A 36.104 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 65.228% 0.033
5.126V 0.354W 114.94V
2 0.09A 0.461W 72.379% 0.059
5.125V 0.637W 114.92V
3 0.55A 2.814W 81.743% 0.259
5.115V 3.443W 114.92V
4 1A 5.106W 81.735% 0.365
5.105V 6.247W 114.93V
5 1.5A 7.642W 81.634% 0.417
5.094V 9.362W 114.93V
6 3A 15.183W 79.794% 0.497
5.061V 19.028W 114.93V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.231W 51.253% 0.012
5.125V 0.451W 229.9V
2 0.09A 0.461W 62.255% 0.02
5.124V 0.742W 229.89V
3 0.55A 2.813W 79.009% 0.095
5.115V 3.56W 229.89V
4 1A 5.105W 80.756% 0.159
5.105V 6.323W 229.89V
5 1.5A 7.642W 81.287% 0.208
5.094V 9.402W 229.88V
6 3A 15.187W 81.575% 0.322
5.062V 18.617W 229.88V

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% 4.374A 1.98A 1.981A 0.981A 75.003 84.379% 0 <6.0 44.85°C 0.955
12.208V 5.051V 3.331V 5.098V 88.893 40.46°C 114.92V
20% 9.759A 2.971A 2.974A 1.179A 149.946 89.978% 0 <6.0 45.69°C 0.975
12.199V 5.049V 3.328V 5.088V 166.644 40.87°C 114.91V
30% 15.498A 3.467A 3.473A 1.378A 224.953 91.327% 0 <6.0 46.87°C 0.982
12.188V 5.048V 3.326V 5.079V 246.316 41.52°C 114.88V
40% 21.239A 3.963A 3.972A 1.578A 300.045 91.508% 0 <6.0 47.68°C 0.987
12.187V 5.046V 3.323V 5.07V 327.889 41.68°C 114.86V
50% 26.593A 4.957A 4.97A 1.779A 374.533 91.184% 749 20.2 42.24°C 0.988
12.185V 5.044V 3.32V 5.06V 410.738 48.68°C 114.84V
60% 31.983A 5.951A 5.969A 1.98A 449.453 90.776% 745 20.0 42.99°C 0.988
12.183V 5.041V 3.317V 5.05V 495.124 49.89°C 114.83V
70% 37.372A 6.947A 6.971A 2.183A 524.379 90.203% 813 22.6 43.35°C 0.989
12.182V 5.039V 3.314V 5.04V 581.324 50.63°C 114.8V
80% 42.824A 7.944A 7.971A 2.286A 599.595 89.576% 948 27.8 43.68°C 0.991
12.182V 5.037V 3.311V 5.032V 669.365 51.75°C 114.79V
90% 48.604A 8.441A 8.461A 2.388A 674.618 88.951% 1049 30.8 44.29°C 0.992
12.183V 5.036V 3.309V 5.025V 758.424 53.32°C 114.76V
100% 54.184A 8.941A 8.982A 2.997A 749.852 88.208% 1129 32.7 45.16°C 0.993
12.183V 5.034V 3.306V 5.006V 850.078 55.19°C 114.74V
110% 59.631A 9.939A 10.079A 3A 824.879 87.325% 1508 41.3 46.92°C 0.993
12.185V 5.032V 3.303V 5V 944.57 57.85°C 114.72V
CL1 0.115A 11.944A 11.931A 0A 101.309 83.403% 728 19.4 44.54°C 0.968
12.222V 5.042V 3.327V 5.106V 121.468 50.02°C 114.89V
CL2 0.114A 19.853A 0A 0A 101.416 82.499% 799 21.9 43.12°C 0.967
12.223V 5.038V 3.333V 5.112V 122.93 50.2°C 114.9V
CL3 0.114A 0A 19.826A 0A 67.382 76.088% 798 21.8 41.65°C 0.956
12.215V 5.056V 3.328V 5.107V 88.558 50.66°C 114.91V
CL4 61.545A 0A 0A 0A 749.621 89.007% 1115 32.4 47.34°C 0.992
12.180V 5.047V 3.313V 5.079V 842.201 57.97°C 114.74V

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% 4.374A 1.98A 1.981A 0.981A 75.003 85.451% 0 <6.0 44.45°C 0.797
12.209V 5.051V 3.331V 5.098V 87.776 40.02°C 229.88V
20% 9.759A 2.971A 2.975A 1.179A 149.95 91.189% 0 <6.0 45.61°C 0.903
12.198V 5.049V 3.328V 5.088V 164.443 40.71°C 229.88V
30% 15.499A 3.467A 3.473A 1.378A 224.958 92.681% 0 <6.0 46.49°C 0.941
12.188V 5.048V 3.326V 5.079V 242.725 41.19°C 229.87V
40% 21.239A 3.963A 3.972A 1.578A 300.054 93.182% 0 <6.0 47.36°C 0.959
12.187V 5.046V 3.323V 5.07V 322.01 41.73°C 229.86V
50% 26.596A 4.957A 4.971A 1.779A 374.531 93.056% 749 20.2 42.32°C 0.968
12.184V 5.043V 3.32V 5.06V 402.479 48.34°C 229.85V
60% 31.986A 5.952A 5.97A 1.98A 449.448 92.875% 745 20.0 42.65°C 0.974
12.181V 5.041V 3.317V 5.051V 483.927 49.27°C 229.84V
70% 37.377A 6.947A 6.972A 2.182A 524.361 92.657% 804 22.1 43.27°C 0.978
12.180V 5.039V 3.314V 5.041V 565.918 50.35°C 229.83V
80% 42.826A 7.944A 7.972A 2.285A 599.578 92.275% 940 27.5 43.56°C 0.981
12.181V 5.037V 3.311V 5.033V 649.769 51.65°C 229.82V
90% 48.608A 8.441A 8.461A 2.388A 674.604 91.87% 1027 30.0 44.1°C 0.983
12.181V 5.035V 3.309V 5.026V 734.302 53.12°C 229.82V
100% 54.193A 8.941A 8.983A 2.996A 749.823 91.452% 1127 32.6 45.02°C 0.984
12.181V 5.034V 3.306V 5.007V 819.913 55.11°C 229.8V
110% 59.635A 9.938A 10.079A 3A 824.843 90.922% 1418 41.4 46.94°C 0.985
12.183V 5.032V 3.303V 5.001V 907.199 57.88°C 229.79V
CL1 0.114A 11.942A 11.93A 0A 101.295 84.731% 643 <6.0 40.63°C 0.858
12.215V 5.042V 3.327V 5.107V 119.55 46.16°C 229.88V
CL2 0.114A 19.85A 0A 0A 101.404 83.546% 800 21.9 41.8°C 0.861
12.220V 5.038V 3.333V 5.112V 121.376 48.86°C 229.88V
CL3 0.115A 0A 19.831A 0A 67.386 76.843% 799 21.9 42.91°C 0.797
12.217V 5.055V 3.328V 5.107V 87.695 52.02°C 229.88V
CL4 61.531A 0A 0A 0A 749.766 91.999% 1153 33.2 45.05°C 0.984
12.185V 5.047V 3.313V 5.079V 814.978 55.96°C 229.81V

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 1.226A 0.495A 0.495A 0.195A 20.001 76.424% 0 <6.0 39.71°C 0.821
12.106V 5.054V 3.334V 5.12V 26.171 36.58°C 114.92V
40W 2.700A 0.693A 0.693A 0.293A 40 82.46% 0 <6.0 40.59°C 0.91
12.108V 5.053V 3.333V 5.116V 48.509 37.25°C 114.93V
60W 4.172A 0.89A 0.891A 0.391A 60 84.559% 0 <6.0 42.61°C 0.941
12.112V 5.053V 3.332V 5.113V 70.957 38.87°C 114.93V
80W 5.598A 1.088A 1.09A 0.489A 79.953 85.491% 0 <6.0 43.1°C 0.956
12.204V 5.052V 3.332V 5.109V 93.518 39.17°C 114.92V

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 0.495A 0.495A 0.195A 20 76.971% 0 <6.0 39.62°C 0.454
12.109V 5.054V 3.334V 5.119V 25.988 36.53°C 229.89V
40W 2.700A 0.693A 0.693A 0.293A 40 83.073% 0 <6.0 40.37°C 0.638
12.110V 5.053V 3.333V 5.116V 48.152 37.03°C 229.88V
60W 4.172A 0.89A 0.891A 0.391A 60 85.417% 0 <6.0 41.59°C 0.744
12.114V 5.053V 3.332V 5.112V 70.243 38.11°C 229.88V
80W 5.598A 1.088A 1.09A 0.489A 79.954 86.608% 0 <6.0 42.89°C 0.807
12.206V 5.052V 3.331V 5.109V 92.319 39.09°C 229.88V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load7.63mV6.13mV8.39mV7.93mVPass
20% Load24.48mV5.67mV7.11mV6.45mVPass
30% Load16.65mV5.62mV7.57mV8.04mVPass
40% Load13.74mV6.33mV7.46mV9.52mVPass
50% Load13.58mV7.82mV8.59mV22.16mVPass
60% Load12.82mV7.97mV7.87mV22.57mVPass
70% Load13.51mV8.22mV8.69mV23.28mVPass
80% Load14.33mV9.30mV10.23mV24.62mVPass
90% Load14.53mV9.34mV10.79mV24.41mVPass
100% Load22.37mV10.48mV11.43mV26.82mVPass
110% Load23.02mV11.56mV12.45mV27.55mVPass
Crossload19.56mV9.47mV11.35mV22.57mVPass
Crossload27.57mV9.40mV8.44mV20.37mVPass
Crossload38.34mV8.58mV13.60mV19.91mVPass
Crossload421.39mV10.84mV9.24mV28.00mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load7.73mV6.38mV8.69mV8.04mVPass
20% Load27.60mV5.62mV7.31mV6.55mVPass
30% Load18.19mV5.57mV7.21mV8.19mVPass
40% Load15.02mV6.02mV7.36mV9.16mVPass
50% Load13.64mV8.38mV8.03mV21.96mVPass
60% Load13.84mV8.58mV7.72mV22.88mVPass
70% Load13.43mV8.63mV9.36mV23.54mVPass
80% Load13.48mV9.04mV10.12mV24.05mVPass
90% Load14.28mV9.70mV12.22mV24.87mVPass
100% Load23.11mV11.02mV10.45mV27.88mVPass
110% Load24.44mV12.79mV12.66mV30.47mVPass
Crossload18.90mV7.08mV9.83mV9.92mVPass
Crossload27.57mV9.70mV8.49mV21.55mVPass
Crossload39.01mV8.27mV14.32mV20.73mVPass
Crossload423.72mV11.54mV9.07mV29.36mVPass

The results above are not used in the certification process

Seasonic Vertex GX-750

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