CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Version:00
Gamer Storm PS750G
Serial Number-
Lab IDGA75002956
Certification ID252956
  • Test Result Report ID: 25PS2956A
  • Certificate Issue Date: Sep 11, 2025
115V230V
Scheme: ETA-EMI PSU
115V230V
Scheme: LAMBDA PSU
Outside Validation Scope
Aristeidis Bitziopoulos, Certification Body General Manager

General Information

DUT Information

BrandGamer Storm
Manufacturer (OEM)Helly
SeriesPS-G
Model NumberPS750G-FE
Serial Number-
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)5-10
Rated Frequency (Hz)50-60
Rated Power (W)750
TypeSFX
Dimensions (W x H x D)
Cooling92mm Fluid Dynamic Bearing Fan (HA9220H12F-Z)
Semi-Passive Operation✗
Cable DesignFully Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps202062.530.3
Watts100750153.6
Total Max. Power (W)750

Test Equipment

Electronic Loads Chroma 63601-5 x2
Chroma 63600-2
Chroma 63640-80-80 x10
Chroma 63610-80-20
AC Sources Chroma 6530, APM SP300VAC4000W-P, GW Instek ASR-3500
Power Analyzers Rohde & Schwarz HMC8015 & NPA701
Oscilloscopes Picoscope 4444, 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
EMI Analyzer TekBox TBMR-110M-EU
Isolation Transformer 4kVA
UPS FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA
Testing Methodology Cybenetics PSU Test Protocol

Cables and Connectors(Non-accredited measurements)

Modular Cables
Description Cable Count Connector Count (Total) Gauge Cable Type
ATX connector 20+4 pin (350mm) 1 1 18-20AWG Tinned Copper / CopperA
4+4 pin ATX12V (450mm+120mm) 1 2 18AWG Tinned Copper
6+2 pin PCIe (450mm+120mm) 1 2 18AWG Tinned Copper
6+2 pin PCIe (450mm) 1 1 18AWG Tinned Copper
12+4 pin PCIe (450mm) (600W) 1 1 16-26AWG Tinned Copper
SATA (300mm+120mm) / 4-pin Molex (+120mm) 1 2 / 1 18AWG CCA

Parts Description

General Data
Manufacturer (OEM) Helly Technology
PCB Type Double-Sided
Primary Side
Transient Filter 2x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush Protection NTC Thermistor MF73T-1 10/6 (10 Ohm @ 25°C) & Relay
Bridge Rectifier
1x
APFC MOSFETs
2x Oriental Semiconductor OSG55R140FF (550V, 14.5A @ 100°C, Rds(on): 0.14Ohm)
APFC Boost Diode
Global Power G3S06510A (650V, 10A @ 153.5°C)
Bulk Cap(s)
Nippon Chemi-Con (420V, 470uF, 2000h @ 105°C, KMZ)
Main Switchers
2x

APFC Controller

Champion CM6500UNX
Resonant Controller
Champion CM6901T6X
Topology Primary side: APFC, Half-Bridge & LLC Resonant Converter
Secondary side: [12V] Synchronous Rectification & [Minor Rails] DC-DC converters
Secondary Side
+12V MOSFETs 6x Huayi HYG009N04LS1C2 (40V, 233A @ 100°C, Rds(on): 0.96mOhm)
5V & 3.3V DC-DC Converters: 2x KS3212T
2x KS3214T
PWM Controller(s): UPI-Semi uP3861P
Filtering Capacitors

Electrolytic:
Nippon Chemi-Con (2-5,000 @ 105°C, KZE)
3x Rubycon (4-10,000 @ 105°C, YXF)
Polymer:
13x ChengX (PC), 10x Beryl (BC))
Supervisor IC IN1S429I-SCG
Fan Model Hong Hua HA9220H12F-Z (90mm, 12V, 0.50A, Fluid Dynamic Bearing Fan)
5VSB Circuit
Rectifier
Dongke DK5V60R20S (60V, 20mOhm)
Standby PWM Controller
Excelliance MOS EM8569C

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 v3.1 PSU Power Excursion✓

Performance Summary

Efficiency RatingPLATINUM
Noise RatingStandard++
Average Efficiency (>1450 load combinations)89.879%
Average Noise Output (>1450 Load Combinations)30.30dBA
Average PF (>1450 Load Combinations)0.991
Efficiency With 10W (≤500W) or 2% (>500W) Load67.618%
Standby Power Consumption0.0446W
12V Ripple (Full Load)38.42mV
5V Ripple (Full Load)8.92mV
3.3V Ripple (Full Load)10.15mV
5VSB Ripple (Full Load)9.68mV
12V Load Regulation0.19%
5V Load Regulation0.59%
3.3V Load Regulation0.66%
5VSB Load Regulation2.48%
Inrush Current109.700A
Efficiency RatingPLATINUM
Noise RatingA-
Average Efficiency (>1450 load combinations)91.610%
Average Noise Output (>1450 Load Combinations)28.51dBA
Average PF (>1450 Load Combinations)0.963
Efficiency With 10W (≤500W) or 2% (>500W) Load68.079%
Standby Power Consumption0.0880W
12V Ripple (Full Load)35.74mV
5V Ripple (Full Load)8.96mV
3.3V Ripple (Full Load)10.08mV
5VSB Ripple (Full Load)9.01mV
12V Load Regulation0.23%
5V Load Regulation0.55%
3.3V Load Regulation0.60%
5VSB Load Regulation2.48%
Inrush Current222.200A
12V Transient Response (200%)11.57V
5V Transient Response (200%)5.022V
3.3V Transient Response (200%)3.280V
5VSB Transient Response (200%)5.041V
Hold-Up Time & Power Ok Signal18.00ms
AC Loss to PWR_OK Hold Up Time16.20ms
PWR_OK Inactive to DC Loss Delay1.80ms
PSU Timings: T1 (20% / 100%)43.0ms43.0ms
PSU Timings: T3 (20% / 100%)116.0ms116.0ms
12V OCP (28.0°C / 42.7°C)79.20A (126.72%), 12.068V78.20A (125.12%), 12.085V
5V OCP (28.0°C / 42.7°C)28.3A (141.50%), 5.054V28.2A (141.00%), 5.052V
3.3V OCP (28.0°C / 42.7°C)28.1A (140.50%), 3.329V27.6A (138.00%), 3.327V
5VSB OCP (28.0°C / 42.7°C)4.6A (153.33%), 5.037V4.4A (146.67%), 5.038V
OPP (28.45°C / 42.34°C)140.18%134.04%

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)18
AC Loss to PWR_OK Hold Up Time (ms)16.2
PWR_OK Inactive to DC Loss Delay (ms)1.8

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.08 V 115.03 V 113.85 V 115.13 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: 1.417 1.415 1.340 1.419 1.490 PASS
Mains Voltage THD: 0.15 % 0.11 % N/A 0.21 % 2.00 % PASS
Real Power: 0.045 W -0.006 W N/A 0.081 W N/A N/A
Apparent Power: 6.593 W 6.400 W N/A 6.792 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: 231.04 V 230.92 V 227.70 V 231.11 V 232.30 V PASS
Mains Frequency: 50.00 Hz 49.99 Hz 49.50 Hz 50.01 Hz 50.50 Hz PASS
Mains Voltage CF: 1.417 1.416 1.340 1.419 1.490 PASS
Mains Voltage THD: 0.17 % 0.14 % N/A 0.29 % 2.00 % PASS
Real Power: 0.088 W 0.050 W N/A 0.174 W N/A N/A
Apparent Power: 21.501 W 21.198 W N/A 21.811 W N/A N/A
Power Factor: 0.005 N/A N/A N/A N/A N/A

Graphs

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

Conducted Emissions EN55032 & CISPR 32

NEUTRAL
PHASE

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 0.233W 67.646% 0.055
5.168V 0.345W 114.95V
2 0.09A 0.465W 74.446% 0.097
5.167V 0.625W 114.95V
3 0.55A 2.836W 82.459% 0.337
5.155V 3.439W 114.95V
4 1A 5.144W 82.709% 0.416
5.142V 6.22W 114.95V
5 1.5A 7.695W 82.411% 0.451
5.129V 9.338W 114.95V
6 3A 15.258W 79.54% 0.5
5.086V 19.184W 114.94V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.233W 61.407% 0.018
5.169V 0.38W 230.06V
2 0.09A 0.465W 69.324% 0.032
5.167V 0.671W 230.06V
3 0.55A 2.835W 80.537% 0.154
5.154V 3.52W 230.06V
4 1A 5.143W 81.34% 0.24
5.142V 6.323W 230.06V
5 1.5A 7.694W 81.406% 0.305
5.128V 9.451W 230.06V
6 3A 15.261W 80.269% 0.394
5.087V 19.013W 230.06V

Protection Features

OCP (Normal @ 28.0°C)12V: 79.20A (126.72%), 12.068V
5V: 28.3A (141.50%), 5.054V
3.3V: 28.1A (140.50%), 3.329V
5VSB: 4.6A (153.33%), 5.037V
OCP (Hot @ 42.7°C)12V: 78.20A (125.12%), 12.085V
5V: 28.2A (141.00%), 5.052V
3.3V: 27.6A (138.00%), 3.327V
5VSB: 4.4A (146.67%), 5.038V
OPP (Normal @ 28.4°C)1051.36W (140.18%)
OPP (Hot @ 42.3°C)1005.31W (134.04%)
OTP✓ (128°C @ Heat Sink)
SCP12V to Earth: ✓
5V to Earth: ✓
3.3V to Earth: ✓
5VSB to Earth: ✓
-12V to Earth: ✓
PWR_OKProper Operation
UVP (Full Load @ 90V)✓
UVP (No Damage @ 80V)✓
Conducted Emissions EN55032 & CISPR 32✓
NLO✓
Fan Failure Protection✗
SIPSurge: MOV
Inrush: NTC & Bypass Relay

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% 4.415A 1.964A 1.972A 0.974A 75.017 87.084% 774 6.9 40.03°C 0.976
12.096V 5.093V 3.348V 5.137V 86.145 46.26°C 114.88V
20% 9.847A 2.948A 2.96A 1.171A 150.002 90.392% 889 9.9 40.81°C 0.99
12.094V 5.09V 3.346V 5.127V 165.946 49.91°C 114.85V
30% 15.627A 3.441A 3.455A 1.368A 225.019 91.273% 1105 15.8 41.22°C 0.99
12.092V 5.088V 3.344V 5.118V 246.535 52.66°C 114.84V
40% 21.416A 3.935A 3.951A 1.567A 300.124 91.511% 1357 21.9 41.85°C 0.992
12.090V 5.085V 3.342V 5.108V 327.961 53.87°C 114.82V
50% 26.839A 4.921A 4.942A 1.766A 374.889 91.375% 1611 27.3 42.03°C 0.994
12.086V 5.083V 3.34V 5.098V 410.274 54.76°C 114.8V
60% 32.279A 5.908A 5.934A 1.966A 449.825 91.01% 1901 32.6 42.93°C 0.995
12.082V 5.08V 3.338V 5.087V 494.26 55.89°C 114.78V
70% 37.722A 6.897A 6.929A 2.167A 524.754 90.477% 2226 36.8 43.08°C 0.996
12.078V 5.077V 3.335V 5.077V 579.987 56.4°C 114.76V
80% 43.236A 7.886A 7.922A 2.269A 599.984 89.847% 2671 43.3 43.74°C 0.996
12.075V 5.074V 3.333V 5.069V 667.785 57.94°C 114.74V
90% 49.069A 8.382A 8.406A 2.372A 674.935 89.227% 2760 44.2 44.34°C 0.996
12.073V 5.072V 3.331V 5.062V 756.424 59.59°C 114.72V
100% 54.708A 8.88A 8.922A 2.978A 750.198 88.407% 3125 46.7 45.62°C 0.997
12.073V 5.069V 3.329V 5.038V 848.576 62.13°C 114.7V
110% 60.224A 9.872A 10.01A 2.981A 825.246 87.657% 3200 47.4 46.48°C 0.997
12.071V 5.066V 3.327V 5.033V 941.448 65.02°C 114.69V
CL1 0.116A 11.861A 11.884A 0A 101.325 83.587% 1688 28.5 40.52°C 0.985
12.100V 5.076V 3.341V 5.158V 121.22 50.42°C 114.88V
CL2 0.116A 19.735A 0A 0A 101.405 82.858% 1368 22.5 40.6°C 0.985
12.098V 5.067V 3.351V 5.161V 122.385 48.11°C 114.9V
CL3 0.116A 0A 19.789A 0A 67.397 77.212% 1350 21.6 40.28°C 0.977
12.095V 5.092V 3.335V 5.159V 87.288 46.69°C 114.92V
CL4 62.158A 0A 0A 0A 749.791 89.44% 2945 46.5 45.31°C 0.997
12.063V 5.084V 3.336V 5.133V 838.316 61.79°C 114.76V

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% 4.413A 1.964A 1.97A 0.973A 75.007 87.417% 827 8.2 40.11°C 0.869
12.101V 5.093V 3.35V 5.137V 85.804 46.7°C 230.04V
20% 9.841A 2.947A 2.957A 1.17A 149.968 91.414% 915 10.2 40.97°C 0.943
12.098V 5.09V 3.348V 5.127V 164.054 48.35°C 230.04V
30% 15.617A 3.44A 3.452A 1.368A 224.971 92.565% 1108 15.9 41.13°C 0.964
12.096V 5.088V 3.346V 5.118V 243.042 49.84°C 230.04V
40% 21.404A 3.933A 3.947A 1.567A 300.061 92.925% 1326 21 41.81°C 0.973
12.093V 5.086V 3.344V 5.108V 322.905 51.06°C 230.04V
50% 26.809A 4.919A 4.938A 1.766A 374.64 92.871% 1602 27.4 42.41°C 0.978
12.090V 5.083V 3.342V 5.097V 403.398 52°C 230.03V
60% 32.245A 5.907A 5.929A 1.966A 449.562 92.718% 1925 34 42.65°C 0.981
12.087V 5.081V 3.34V 5.087V 484.872 52.78°C 230.02V
70% 37.687A 6.895A 6.923A 2.167A 524.494 92.366% 2316 38.3 43.03°C 0.983
12.083V 5.078V 3.337V 5.077V 567.844 53.36°C 230.02V
80% 43.204A 7.883A 7.915A 2.269A 599.761 92.002% 2675 43.5 43.89°C 0.985
12.079V 5.074V 3.335V 5.069V 651.898 54.27°C 229.99V
90% 49.059A 8.381A 8.4A 2.372A 674.872 91.662% 2916 45.9 44.4°C 0.986
12.075V 5.072V 3.333V 5.061V 736.259 56.17°C 229.96V
100% 54.702A 8.878A 8.916A 2.978A 750.122 91.184% 3180 47.6 45.51°C 0.987
12.073V 5.069V 3.331V 5.038V 822.645 58.92°C 229.93V
110% 60.218A 9.872A 10.002A 2.981A 825.166 90.715% 3197 47.4 46.32°C 0.988
12.071V 5.066V 3.329V 5.032V 909.627 61.09°C 229.91V
CL1 0.116A 11.858A 11.875A 0A 101.306 85.594% 1372 22.6 40.08°C 0.913
12.096V 5.077V 3.343V 5.158V 118.354 46.66°C 230.03V
CL2 0.116A 19.735A 0A 0A 101.398 84.35% 1312 21 40.89°C 0.915
12.096V 5.067V 3.353V 5.161V 120.211 46.92°C 230.03V
CL3 0.115A 0A 19.776A 0A 67.392 78.217% 1395 22.9 40.99°C 0.87
12.095V 5.092V 3.337V 5.159V 86.159 45.71°C 230.04V
CL4 62.153A 0A 0A 0A 749.769 92.189% 3126 46.7 45.31°C 0.987
12.064V 5.084V 3.338V 5.133V 813.299 59.17°C 229.96V

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 1.229A 0.49A 0.492A 0.194A 20.013 72.637% 612 <6.0 36.96°C 0.881
12.095V 5.099V 3.351V 5.163V 27.551 40.86°C 114.9V
40W 2.704A 0.687A 0.689A 0.291A 40.011 82.227% 639 <6.0 37.1°C 0.948
12.095V 5.098V 3.351V 5.159V 48.66 42.28°C 114.89V
60W 4.178A 0.883A 0.887A 0.388A 60.011 85.953% 670 <6.0 38.9°C 0.97
12.095V 5.098V 3.351V 5.156V 69.818 44.47°C 114.88V
80W 5.652A 1.08A 1.084A 0.486A 79.99 88.26% 730 <6.0 39.14°C 0.979
12.095V 5.097V 3.351V 5.152V 90.63 45.97°C 114.88V

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 1.228A 0.491A 0.492A 0.194A 20.011 72.548% 639 <6.0 36.32°C 0.557
12.096V 5.097V 3.351V 5.163V 27.583 41.1°C 230.02V
40W 2.703A 0.687A 0.689A 0.291A 40.009 82.82% 669 <6.0 37.5°C 0.736
12.096V 5.096V 3.351V 5.159V 48.308 42.41°C 230.01V
60W 4.178A 0.884A 0.886A 0.388A 60.009 86.815% 700 <6.0 38.28°C 0.826
12.097V 5.095V 3.351V 5.156V 69.122 43.64°C 230V
80W 5.650A 1.08A 1.084A 0.485A 79.984 88.91% 748 <6.0 39.28°C 0.876
12.097V 5.094V 3.351V 5.152V 89.961 45.49°C 230V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load24.17mV9.28mV8.19mV5.96mVPass
20% Load24.83mV7.09mV5.95mV5.91mVPass
30% Load27.43mV11.07mV9.82mV6.06mVPass
40% Load29.31mV6.73mV6.31mV5.91mVPass
50% Load30.94mV8.01mV7.02mV6.67mVPass
60% Load33.89mV7.24mV6.46mV6.52mVPass
70% Load34.96mV15.35mV13.63mV6.88mVPass
80% Load35.16mV13.62mV14.44mV7.03mVPass
90% Load37.30mV8.52mV9.71mV7.49mVPass
100% Load38.42mV8.92mV10.15mV9.68mVPass
110% Load39.24mV9.61mV10.08mV9.49mVPass
Crossload124.55mV8.49mV8.31mV6.43mVPass
Crossload224.78mV9.03mV4.63mV10.29mVPass
Crossload323.92mV6.43mV9.77mV10.09mVPass
Crossload436.34mV6.89mV6.27mV7.44mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load22.69mV6.43mV4.83mV5.35mVPass
20% Load24.38mV7.29mV5.34mV5.86mVPass
30% Load26.26mV7.14mV5.44mV5.86mVPass
40% Load27.12mV7.96mV7.07mV6.06mVPass
50% Load30.17mV6.99mV6.00mV6.93mVPass
60% Load30.89mV14.28mV12.67mV6.52mVPass
70% Load32.11mV7.91mV6.86mV7.03mVPass
80% Load33.12mV8.06mV9.41mV6.98mVPass
90% Load33.84mV8.57mV9.71mV7.39mVPass
100% Load35.74mV8.96mV10.08mV9.01mVPass
110% Load37.08mV9.10mV11.36mV9.14mVPass
Crossload122.34mV8.23mV8.44mV10.24mVPass
Crossload223.15mV8.93mV4.53mV10.14mVPass
Crossload322.90mV6.22mV9.51mV9.98mVPass
Crossload434.34mV7.17mV6.11mV10.81mVPass

The results above are not used in the certification process

Gamer Storm PS750G

Top side
Power specifications label
Fan
PSU Inside
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
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