CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Seasonic Focus GX-750 (ATX v3.0)
Serial Number
Lab IDSS75002333
  • Report: 24PS2333A
  • Receipt Date: Jan 2, 2024
  • Test Date: Jan 20, 2024
  • Report Date: Jan 23, 2024
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandSeasonic
Manufacturer (OEM)Seasonic
SeriesFocus GX
Model NumberSSR-750FX3
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 (610mm) 1 1 16-18AWG No
4+4 pin EPS12V (700mm) 2 2 16AWG No
6+2 pin PCIe (750mm) 2 2 16-18AWG No
12+4 pin PCIe (750mm) (600W) 1 1 16-28AWG No
SATA (510mm+155mm+155mm+155mm) 2 8 18AWG No
SATA 3.3 (410mm+160mm) 1 2 18AWG No
4-pin Molex (450mm+125mm+125mm) 1 3 18AWG No

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)22.5
AC Loss to PWR_OK Hold Up Time (ms)18.2
PWR_OK Inactive to DC Loss Delay (ms)4.3

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.18 V 115.16 V 113.85 V 115.19 V 116.15 V PASS
Mains Frequency: 60.00 Hz 60.00 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: 0.073 W 0.066 W N/A 0.079 W N/A N/A
Apparent Power: 9.959 W 9.955 W N/A 9.962 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: 230.40 V 230.40 V 227.70 V 230.43 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: 0.14 % 0.13 % N/A 0.16 % 2.00 % PASS
Real Power: 0.166 W 0.146 W N/A 0.194 W N/A N/A
Apparent Power: 33.325 W 33.312 W N/A 33.335 W N/A N/A
Power Factor: 0.005 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 0.234W 64.451% 0.036
5.132V 0.362W 115.17V
2 0.09A 0.464W 71.407% 0.064
5.131V 0.65W 115.17V
3 0.55A 2.818W 78.021% 0.274
5.121V 3.611W 115.17V
4 1A 5.113W 78.069% 0.373
5.111V 6.549W 115.17V
5 1.5A 7.652W 78.573% 0.421
5.1V 9.739W 115.17V
6 3.001A 15.183W 76.831% 0.486
5.06V 19.76W 115.16V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.231W 49.745% 0.014
5.132V 0.465W 230.41V
2 0.09A 0.462W 60.575% 0.023
5.131V 0.764W 230.4V
3 0.55A 2.817W 75.501% 0.107
5.12V 3.732W 230.41V
4 1A 5.112W 76.935% 0.175
5.11V 6.644W 230.4V
5 1.5A 7.65W 77.544% 0.235
5.098V 9.864W 230.4V
6 3.001A 15.194W 78.095% 0.337
5.064V 19.455W 230.4V

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% 4.419A 1.99A 1.987A 0.98A 75.003 86.126% 0 <6.0 44.68°C 0.963
12.085V 5.025V 3.321V 5.105V 87.085 40.42°C 115.15V
20% 9.854A 2.987A 2.984A 1.178A 149.962 89.546% 0 <6.0 45.24°C 0.977
12.082V 5.022V 3.318V 5.094V 167.469 40.57°C 115.12V
30% 15.639A 3.487A 3.484A 1.377A 224.969 90.533% 0 <6.0 46.28°C 0.983
12.079V 5.02V 3.315V 5.084V 248.493 41.14°C 115.1V
40% 21.430A 3.986A 3.985A 1.577A 300.054 90.508% 668 16.1 41.84°C 0.984
12.079V 5.019V 3.313V 5.073V 331.52 47.35°C 115.08V
50% 26.834A 4.984A 4.985A 1.778A 374.635 90.342% 666 16.0 42.2°C 0.986
12.079V 5.017V 3.31V 5.063V 414.688 48.25°C 115.06V
60% 32.271A 5.985A 5.988A 1.98A 449.587 89.904% 663 15.8 42.59°C 0.987
12.078V 5.014V 3.307V 5.053V 500.08 49.21°C 115.03V
70% 37.704A 6.987A 6.992A 2.183A 524.497 89.269% 760 20.3 43.01°C 0.988
12.078V 5.011V 3.304V 5.04V 587.55 50.06°C 115V
80% 43.210A 7.988A 7.996A 2.286A 599.716 88.556% 953 27.3 43.87°C 0.989
12.076V 5.008V 3.301V 5.032V 677.207 51.94°C 114.97V
90% 49.049A 8.492A 8.487A 2.389A 674.76 87.827% 1195 34.5 44.58°C 0.99
12.075V 5.005V 3.299V 5.023V 768.282 53.63°C 114.96V
100% 54.687A 8.995A 9.01A 2.999A 749.987 87.003% 1398 38.9 45.44°C 0.991
12.074V 5.003V 3.296V 5.003V 862.028 55.45°C 114.93V
110% 60.193A 10A 10.111A 3.003A 825.014 86.099% 1567 42.6 46.68°C 0.992
12.073V 5V 3.293V 4.996V 958.219 57.61°C 114.9V
CL1 0.116A 12.02A 11.99A 0A 101.305 84.793% 582 11.1 40.03°C 0.97
12.082V 5.008V 3.311V 5.117V 119.474 45.49°C 115.14V
CL2 0.116A 19.984A 0A 0A 101.399 83.473% 748 19.8 40.73°C 0.971
12.082V 5.004V 3.321V 5.122V 121.477 47.79°C 115.14V
CL3 0.116A 0A 19.959A 0A 67.394 78.483% 769 20.7 40.26°C 0.962
12.078V 5.022V 3.306V 5.118V 85.871 49.38°C 115.16V
CL4 62.132A 0A 0A 0A 749.776 87.913% 1397 38.8 45.57°C 0.99
12.067V 5.017V 3.306V 5.08V 852.872 56.49°C 114.93V

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% 4.418A 1.99A 1.987A 0.98A 74.997 87.095% 0 <6.0 44.67°C 0.823
12.085V 5.026V 3.321V 5.105V 86.11 40.46°C 230.34V
20% 9.852A 2.986A 2.983A 1.178A 149.929 90.93% 0 <6.0 45.21°C 0.91
12.082V 5.023V 3.318V 5.095V 164.882 40.67°C 230.33V
30% 15.636A 3.485A 3.483A 1.377A 224.925 92.064% 0 <6.0 46.42°C 0.94
12.079V 5.021V 3.316V 5.085V 244.314 41.38°C 230.32V
40% 21.428A 3.985A 3.983A 1.577A 300.01 92.259% 659 15.7 41.65°C 0.954
12.078V 5.019V 3.313V 5.074V 325.186 47.22°C 230.31V
50% 26.826A 4.983A 4.984A 1.778A 374.511 92.278% 657 15.6 42.34°C 0.962
12.078V 5.017V 3.311V 5.064V 405.857 48.36°C 230.31V
60% 32.261A 5.983A 5.986A 1.979A 449.438 92.071% 654 15.5 42.91°C 0.968
12.077V 5.015V 3.308V 5.053V 488.141 49.49°C 230.3V
70% 37.697A 6.986A 6.99A 2.182A 524.368 91.671% 752 20.0 43.11°C 0.972
12.077V 5.011V 3.305V 5.041V 572.015 50.12°C 230.29V
80% 43.203A 7.987A 7.995A 2.285A 599.591 91.239% 960 27.7 43.71°C 0.975
12.076V 5.008V 3.302V 5.033V 657.16 51.72°C 230.28V
90% 49.040A 8.49A 8.486A 2.388A 674.633 90.811% 1184 34.2 44.05°C 0.977
12.075V 5.006V 3.299V 5.025V 742.896 53.14°C 230.28V
100% 54.678A 8.993A 9.008A 2.997A 749.862 90.27% 1398 38.9 45.01°C 0.979
12.074V 5.004V 3.296V 5.005V 830.692 55.11°C 230.27V
110% 60.182A 9.997A 10.11A 3.001A 824.891 89.685% 1556 42.3 46.86°C 0.981
12.073V 5.001V 3.293V 4.999V 919.77 57.78°C 230.26V
CL1 0.116A 12.017A 11.989A 0A 101.294 85.93% 583 11.1 40°C 0.87
12.082V 5.009V 3.311V 5.117V 117.882 45.45°C 230.35V
CL2 0.116A 19.977A 0A 0A 101.39 84.617% 744 19.6 40.01°C 0.872
12.083V 5.005V 3.321V 5.122V 119.823 47.06°C 230.36V
CL3 0.115A 0A 19.956A 0A 67.387 79.363% 763 20.4 39.99°C 0.821
12.079V 5.022V 3.307V 5.118V 84.911 49.03°C 230.36V
CL4 62.119A 0A 0A 0A 749.654 91.066% 1380 38.5 45.59°C 0.978
12.068V 5.018V 3.306V 5.082V 823.196 56.56°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 1.228A 0.497A 0.496A 0.195A 20.006 71.127% 0 <6.0 39.85°C 0.871
12.106V 5.029V 3.325V 5.127V 28.128 36.79°C 115.16V
40W 2.704A 0.696A 0.695A 0.293A 40.002 81.154% 0 <6.0 40.47°C 0.932
12.089V 5.028V 3.324V 5.124V 49.294 37.14°C 115.15V
60W 4.181A 0.895A 0.894A 0.391A 60 85.046% 0 <6.0 42.59°C 0.953
12.086V 5.027V 3.322V 5.12V 70.549 38.82°C 115.15V
80W 5.654A 1.094A 1.093A 0.489A 79.96 87.139% 0 <6.0 43.19°C 0.965
12.085V 5.026V 3.322V 5.116V 91.759 39.22°C 115.14V

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 1.240A 0.497A 0.496A 0.195A 19.996 70.771% 0 <6.0 39.86°C 0.517
11.980V 5.032V 3.325V 5.127V 28.255 36.78°C 230.34V
40W 2.704A 0.696A 0.695A 0.293A 39.996 81.772% 0 <6.0 40.34°C 0.687
12.089V 5.03V 3.324V 5.124V 48.912 37.14°C 230.35V
60W 4.180A 0.895A 0.894A 0.391A 59.995 85.985% 0 <6.0 41.89°C 0.776
12.087V 5.028V 3.323V 5.12V 69.776 38.3°C 230.34V
80W 5.652A 1.094A 1.092A 0.489A 79.943 88.196% 0 <6.0 42.98°C 0.832
12.085V 5.027V 3.322V 5.116V 90.643 39.11°C 230.34V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load13.14mV6.78mV4.43mV5.30mVPass
20% Load9.79mV7.65mV4.93mV6.16mVPass
30% Load8.91mV9.18mV6.36mV6.67mVPass
40% Load9.16mV8.62mV6.51mV8.20mVPass
50% Load10.23mV9.69mV6.51mV8.20mVPass
60% Load10.53mV9.49mV6.97mV8.97mVPass
70% Load11.29mV12.24mV8.29mV9.22mVPass
80% Load11.40mV17.60mV13.79mV11.26mVPass
90% Load12.27mV18.92mV14.70mV12.74mVPass
100% Load17.87mV23.84mV17.09mV15.58mVPass
110% Load18.53mV21.20mV17.14mV15.67mVPass
Crossload115.31mV9.20mV10.07mV6.68mVPass
Crossload210.65mV7.65mV4.12mV5.50mVPass
Crossload312.81mV8.62mV11.50mV5.66mVPass
Crossload417.30mV21.15mV13.94mV11.52mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load13.96mV6.84mV4.43mV5.50mVPass
20% Load11.21mV8.16mV4.88mV6.16mVPass
30% Load9.35mV8.62mV6.56mV7.08mVPass
40% Load9.36mV8.82mV5.90mV7.75mVPass
50% Load9.72mV9.28mV6.41mV8.05mVPass
60% Load10.99mV10.82mV7.43mV9.37mVPass
70% Load11.45mV12.55mV8.60mV9.07mVPass
80% Load11.45mV17.50mV13.48mV10.34mVPass
90% Load12.52mV19.18mV14.29mV12.13mVPass
100% Load19.26mV23.03mV16.78mV14.21mVPass
110% Load20.50mV23.74mV17.50mV15.00mVPass
Crossload116.66mV9.30mV9.91mV6.34mVPass
Crossload212.08mV8.01mV4.17mV5.45mVPass
Crossload313.91mV9.44mV11.80mV5.76mVPass
Crossload412.16mV19.84mV12.97mV9.83mVPass

The results above are not used in the certification process

Seasonic Focus GX-750 (ATX v3.0)

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
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