CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Version:00
Gamer Storm PS850G
Serial Number-
Lab IDGA85002955
Certification ID252955
  • Test Result Report ID: 25PS2955A
  • 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 NumberPS850G-FE
Serial Number-
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)10-5
Rated Frequency (Hz)50-60
Rated Power (W)850
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. PowerAmps202070.830.3
Watts100849.6153.6
Total Max. Power (W)850

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 / Copper
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 4x 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
GBU15J (600V, 15A @ 100°C)
APFC MOSFETs
2x Infineon IPA60R099P7 (650V, 20A @ 100°C, Rds(on): 0.099Ohm)
APFC Boost Diode
Sanan SDS065J010C3 (650V, 10A @ 155°C)
Bulk Cap(s)
Rubycon (420V, 560uF, 3000h @ 85°C, USK)
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)
5x Beryl (@ 105°C)
Polymer:
13x ChengX (PC), 5x 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)89.788%
Average Noise Output (>1450 Load Combinations)30.18dBA
Average PF (>1450 Load Combinations)0.992
Efficiency With 10W (≤500W) or 2% (>500W) Load70.219%
Standby Power Consumption0.0429W
12V Ripple (Full Load)36.65mV
5V Ripple (Full Load)11.55mV
3.3V Ripple (Full Load)10.04mV
5VSB Ripple (Full Load)9.24mV
12V Load Regulation0.33%
5V Load Regulation0.67%
3.3V Load Regulation0.71%
5VSB Load Regulation3.02%
Inrush Current115.700A
Efficiency RatingPLATINUM
Noise RatingStandard++
Average Efficiency (>1450 load combinations)91.721%
Average Noise Output (>1450 Load Combinations)30.42dBA
Average PF (>1450 Load Combinations)0.967
Efficiency With 10W (≤500W) or 2% (>500W) Load70.810%
Standby Power Consumption0.0964W
12V Ripple (Full Load)34.57mV
5V Ripple (Full Load)11.30mV
3.3V Ripple (Full Load)10.57mV
5VSB Ripple (Full Load)8.83mV
12V Load Regulation0.29%
5V Load Regulation0.67%
3.3V Load Regulation0.74%
5VSB Load Regulation3.14%
Inrush Current236.400A
12V Transient Response (200%)11.57V
5V Transient Response (200%)4.987V
3.3V Transient Response (200%)3.289V
5VSB Transient Response (200%)4.982V
Hold-Up Time & Power Ok Signal18.80ms
AC Loss to PWR_OK Hold Up Time17.30ms
PWR_OK Inactive to DC Loss Delay1.50ms
PSU Timings: T1 (20% / 100%)47.0ms48.0ms
PSU Timings: T3 (20% / 100%)114.0ms114.0ms
12V OCP (27.6°C / 42.3°C)90.00A (127.12%), 12.110V86.00A (121.47%), 12.128V
5V OCP (27.6°C / 42.3°C)27.1A (135.50%), 5.033V26.6A (133.00%), 5.031V
3.3V OCP (27.6°C / 42.3°C)27.6A (138.00%), 3.358V27.2A (136.00%), 3.358V
5VSB OCP (27.6°C / 42.3°C)4.8A (160.00%), 4.957V4.7A (156.67%), 4.955V
OPP (30.17°C / 43.45°C)138.02%123.28%

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)18.8
AC Loss to PWR_OK Hold Up Time (ms)17.3
PWR_OK Inactive to DC Loss Delay (ms)1.5

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 0.22 % 2.00 % PASS
Real Power: 0.043 W -0.005 W N/A 0.081 W N/A N/A
Apparent Power: 6.708 W 6.516 W N/A 6.909 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: 231.03 V 230.93 V 227.70 V 231.10 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 1.417 1.340 1.419 1.490 PASS
Mains Voltage THD: 0.17 % 0.14 % N/A 0.26 % 2.00 % PASS
Real Power: 0.096 W 0.060 W N/A 0.171 W N/A N/A
Apparent Power: 21.896 W 21.598 W N/A 22.198 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 0.231W 68.106% 0.053
5.13V 0.339W 114.91V
2 0.09A 0.462W 74.86% 0.094
5.129V 0.617W 114.9V
3 0.55A 2.814W 82.661% 0.344
5.114V 3.405W 114.92V
4 1A 5.101W 82.794% 0.434
5.1V 6.161W 114.93V
5 1.5A 7.628W 82.239% 0.478
5.084V 9.276W 114.94V
6 3.001A 15.108W 79.493% 0.536
5.035V 19.005W 114.9V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.231W 61.322% 0.018
5.131V 0.377W 230.06V
2 0.09A 0.462W 69.699% 0.031
5.129V 0.663W 230.06V
3 0.55A 2.813W 81.365% 0.149
5.114V 3.458W 230.06V
4 1A 5.101W 82.334% 0.235
5.1V 6.195W 230.06V
5 1.5A 7.629W 83.04% 0.296
5.085V 9.188W 230.06V
6 3.001A 15.112W 80.685% 0.399
5.037V 18.729W 230.06V

Protection Features

OCP (Normal @ 27.6°C)12V: 90.00A (127.12%), 12.110V
5V: 27.1A (135.50%), 5.033V
3.3V: 27.6A (138.00%), 3.358V
5VSB: 4.8A (160.00%), 4.957V
OCP (Hot @ 42.3°C)12V: 86.00A (121.47%), 12.128V
5V: 26.6A (133.00%), 5.031V
3.3V: 27.2A (136.00%), 3.358V
5VSB: 4.7A (156.67%), 4.955V
OPP (Normal @ 30.2°C)1173.17W (138.02%)
OPP (Hot @ 43.5°C)1047.90W (123.28%)
OTP✓ (123°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% 5.222A 1.971A 1.953A 0.982A 85.016 87.939% 491 <6.0 40.44°C 0.982
12.141V 5.076V 3.38V 5.094V 96.676 44.55°C 114.86V
20% 11.460A 2.958A 2.932A 1.181A 170.013 90.958% 587 <6.0 40.92°C 0.987
12.138V 5.073V 3.377V 5.082V 186.916 46.72°C 114.84V
30% 18.044A 3.454A 3.423A 1.381A 255.045 91.694% 723 <6.0 41.12°C 0.99
12.136V 5.07V 3.375V 5.07V 278.149 47.82°C 114.83V
40% 24.641A 3.949A 3.915A 1.582A 340.143 91.764% 1027 13.9 41.87°C 0.993
12.131V 5.067V 3.373V 5.058V 370.67 48.88°C 114.81V
50% 30.896A 4.939A 4.897A 1.784A 425.218 91.46% 1453 24.5 42.26°C 0.994
12.128V 5.064V 3.37V 5.046V 464.92 49.23°C 114.81V
60% 37.109A 5.93A 5.881A 1.987A 509.69 90.921% 1898 32.6 42.75°C 0.995
12.123V 5.061V 3.368V 5.033V 560.588 49.48°C 114.81V
70% 43.395A 6.923A 6.866A 2.192A 595 90.239% 2333 38.8 43.42°C 0.996
12.119V 5.057V 3.365V 5.021V 659.358 49.84°C 114.81V
80% 49.686A 7.917A 7.852A 2.295A 679.826 89.536% 2825 43.9 43.86°C 0.996
12.115V 5.053V 3.362V 5.011V 759.274 50.96°C 114.78V
90% 56.375A 8.417A 8.333A 2.4A 765.26 88.79% 3156 47.3 44.45°C 0.997
12.111V 5.05V 3.36V 5.001V 861.874 51.93°C 114.76V
100% 62.809A 8.917A 8.846A 3.016A 850.138 87.916% 3227 47.4 45.03°C 0.997
12.107V 5.047V 3.357V 4.974V 966.987 51.8°C 114.73V
110% 69.104A 9.915A 9.926A 3.02A 934.675 86.979% 3238 47.3 46.62°C 0.997
12.104V 5.043V 3.355V 4.968V 1074.596 54.78°C 114.72V
CL1 0.116A 11.908A 11.775A 0A 101.314 83.169% 1557 26.6 40.86°C 0.987
12.145V 5.056V 3.371V 5.118V 121.821 43.5°C 114.92V
CL2 0.115A 19.831A 0A 0A 101.406 82.81% 1064 14.6 40.05°C 0.987
12.143V 5.043V 3.382V 5.121V 122.455 43.78°C 114.91V
CL3 0.115A 0A 19.611A 0A 67.403 76.627% 1207 18.5 40.84°C 0.981
12.142V 5.075V 3.365V 5.12V 87.963 43.83°C 114.9V
CL4 70.240A 0A 0A 0A 849.927 88.621% 3231 47.3 45.35°C 0.997
12.101V 5.066V 3.365V 5.083V 959.061 51.77°C 114.7V

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% 5.220A 1.971A 1.953A 0.982A 85.008 88.614% 511 <6.0 40.41°C 0.897
12.145V 5.074V 3.38V 5.092V 95.931 44.75°C 230.02V
20% 11.453A 2.959A 2.931A 1.181A 169.977 92.039% 573 <6.0 40.7°C 0.952
12.142V 5.07V 3.378V 5.08V 184.678 45.35°C 230.02V
30% 18.035A 3.454A 3.422A 1.382A 254.991 92.958% 690 <6.0 41.97°C 0.968
12.140V 5.068V 3.375V 5.068V 274.305 46.79°C 230.01V
40% 24.627A 3.95A 3.914A 1.583A 340.09 93.135% 1071 14.9 41.75°C 0.975
12.136V 5.065V 3.373V 5.055V 365.162 46.97°C 230V
50% 30.878A 4.941A 4.896A 1.786A 425.133 92.952% 1542 25.9 42.31°C 0.98
12.132V 5.061V 3.371V 5.042V 457.369 47.56°C 229.99V
60% 37.090A 5.934A 5.88A 1.989A 509.654 92.65% 1999 35.2 43.33°C 0.982
12.128V 5.058V 3.368V 5.029V 550.082 48.39°C 229.98V
70% 43.375A 6.928A 6.866A 2.194A 594.983 92.206% 2413 39.7 43.02°C 0.984
12.124V 5.054V 3.365V 5.015V 645.273 47.52°C 229.98V
80% 49.667A 7.921A 7.852A 2.298A 679.8 91.754% 2799 43.8 43.73°C 0.986
12.119V 5.05V 3.362V 5.006V 740.895 48.4°C 229.96V
90% 56.356A 8.421A 8.333A 2.402A 765.231 91.268% 3130 46.9 44.11°C 0.987
12.115V 5.047V 3.36V 4.996V 838.443 48.54°C 229.95V
100% 62.779A 8.921A 8.846A 3.02A 850.057 90.684% 3242 47.3 45.54°C 0.987
12.111V 5.045V 3.357V 4.967V 937.385 50.66°C 229.94V
110% 69.071A 9.921A 9.926A 3.025A 934.64 90.051% 3246 47.3 46.91°C 0.988
12.109V 5.04V 3.355V 4.96V 1037.903 52.36°C 229.93V
CL1 0.116A 11.915A 11.775A 0A 101.311 84.394% 1599 27.4 40.94°C 0.923
12.147V 5.053V 3.371V 5.118V 120.049 43.45°C 230.03V
CL2 0.115A 19.844A 0A 0A 101.401 84.079% 1096 15.5 40.75°C 0.923
12.144V 5.039V 3.382V 5.121V 120.602 44.44°C 230.03V
CL3 0.115A 0A 19.61A 0A 67.393 77.551% 1195 18.3 41.2°C 0.884
12.143V 5.073V 3.365V 5.12V 86.9 44.41°C 230.04V
CL4 70.221A 0A 0A 0A 849.735 91.563% 3235 47.3 45.18°C 0.987
12.101V 5.063V 3.365V 5.083V 928.036 49.78°C 229.95V

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 1.224A 0.492A 0.488A 0.195A 20.014 72.31% 380 <6.0 36.38°C 0.919
12.139V 5.081V 3.381V 5.124V 27.681 39.22°C 114.89V
40W 2.694A 0.689A 0.683A 0.293A 40.012 82.019% 388 <6.0 37.76°C 0.961
12.139V 5.08V 3.381V 5.12V 48.782 41.01°C 114.88V
60W 4.163A 0.887A 0.879A 0.391A 60.012 85.937% 396 <6.0 38.13°C 0.975
12.139V 5.079V 3.381V 5.115V 69.835 41.7°C 114.88V
80W 5.630A 1.085A 1.075A 0.489A 80.025 86.266% 415 <6.0 398.3°C 0.982
12.147V 5.075V 3.38V 5.111V 92.747 42.63°C 114.89V

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 1.224A 0.492A 0.488A 0.195A 20.007 72.5% 388 <6.0 37.53°C 0.618
12.142V 5.079V 3.381V 5.124V 27.594 41.24°C 230.04V
40W 2.692A 0.689A 0.683A 0.293A 40.005 82.718% 396 <6.0 37.51°C 0.774
12.142V 5.078V 3.382V 5.12V 48.363 41.37°C 230.04V
60W 4.162A 0.887A 0.878A 0.391A 60.004 86.837% 407 <6.0 38.74°C 0.849
12.142V 5.077V 3.381V 5.115V 69.098 42.57°C 230.03V
80W 5.628A 1.084A 1.074A 0.489A 79.994 87.165% 451 <6.0 39.22°C 0.891
12.146V 5.075V 3.38V 5.11V 91.78 43.14°C 230.05V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load22.90mV10.66mV7.63mV6.93mVPass
20% Load24.53mV9.49mV5.70mV7.08mVPass
30% Load24.83mV11.73mV8.69mV6.73mVPass
40% Load28.29mV10.05mV5.85mV7.13mVPass
50% Load31.80mV10.30mV7.73mV7.49mVPass
60% Load33.33mV9.85mV7.17mV7.69mVPass
70% Load33.84mV26.37mV18.26mV8.20mVPass
80% Load34.04mV15.61mV15.56mV8.36mVPass
90% Load35.21mV11.37mV10.63mV8.51mVPass
100% Load36.65mV11.55mV10.04mV9.24mVPass
110% Load38.64mV11.30mV10.74mV9.25mVPass
Crossload122.47mV10.20mV8.67mV7.24mVPass
Crossload223.10mV11.94mV4.53mV21.30mVPass
Crossload322.85mV8.72mV10.02mV21.14mVPass
Crossload435.98mV9.44mV6.56mV6.84mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load23.10mV8.93mV5.39mV7.13mVPass
20% Load24.22mV9.18mV5.54mV7.18mVPass
30% Load25.44mV9.49mV5.80mV7.39mVPass
40% Load26.41mV9.39mV6.66mV7.28mVPass
50% Load29.87mV9.74mV6.20mV7.44mVPass
60% Load30.38mV15.20mV13.63mV7.59mVPass
70% Load30.99mV10.56mV7.37mV7.85mVPass
80% Load32.26mV10.56mV9.76mV8.86mVPass
90% Load33.48mV11.02mV10.02mV8.25mVPass
100% Load34.57mV11.30mV10.57mV8.83mVPass
110% Load36.13mV11.34mV11.20mV8.88mVPass
Crossload122.55mV10.35mV9.21mV10.46mVPass
Crossload223.25mV11.78mV4.68mV10.95mVPass
Crossload323.91mV9.28mV9.92mV10.75mVPass
Crossload433.98mV10.12mV6.65mV11.34mVPass

The results above are not used in the certification process

Gamer Storm PS850G

Top side
Power specifications label
Fan
PSU Internals
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