Customer: Cybenetics LTD
Syrou 6, Latsia, 2231, Nicosia Cyprus
Syrou 6, Latsia, 2231, Nicosia Cyprus
PS850G
| 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 |
| Voltage | 115V | 230V |
|---|---|---|
| Efficiency (>1450 Load Combinations) | 89.788% | 91.721% |
| Efficiency Graphs |  |  |
| Average PF (>1450 Load Combinations) | 0.992 | 0.967 |
| 12V Step | - | |
| 5V/3.3V Step | - | |
| Standby Power Consumption | 0.0429W | 0.0964W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✗ | |
| Average Efficiency VSB | 81.919% | 81.127% |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 30.18dBA | 30.42dBA |
| Noise Graphs |  |  |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 70.219% |
| Hold Up Time | 18.80ms |
| Power OK | 17.30ms |
| Power OK to DC Loss | 1.50ms |
| Test\Rail | +12V | 5V | 3.3V | 5VSB |
| 100ms | 11.997 | 5.044 | 3.346 | 5.044 |
| 10ms | 11.794 | 5.018 | 3.321 | 5.021 |
| 1ms | 11.696 | 5.006 | 3.310 | 5.006 |
| 0.1ms | 11.575 | 4.987 | 3.289 | 4.982 |
| Product Identification Details | |
| Brand | Gamer Storm |
| Model | PS850G |
| OEM/ODM | Helly |
| Serial Number | - |
| Product Specifications | |
| Manufacturer | |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 10-5 |
| Rated Frequency (Hz) | 50-60 |
| Rated Power (W) | 850 |
| Operating Temperature (Continuous Full Load) (°C) | |
| Type | SFX |
| Cable Design | Fully Modular |
| Warranty | - |
| Cybenetics | |
| Dimensions (W x H x D) | |
| Weight | |
| Cooling | 92mm Fluid Dynamic Bearing Fan (HA9220H12F-Z) |
| Semi-Passive Operation | ✗ |
| Cybenetics Testing Information | |
| Lab ID | GA85002955 |
| Date of receipt | Aug 21, 2025 |
| Testing Date | Sep 3, 2025 |
| Report Issued Date | Sep 11, 2025 |
| Engineer Name | - |
| Authorized By the Laboratory Technical Manager | Aristeidis Bitziopoulos |
| Signature |  |
| 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 |
| Over Power Protection | ✓ |
| Over Current (+12V) Protection | ✓ |
| Over Temperature Protection | ✓ |
| Short Circuit Protection | ✓ |
| Surge Protection | ✓ |
| Inrush Current Protection | ✓ |
| Fan Failure Protection | ✗ |
| 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, 1x Sanrise Tech SRC60R075B2 (600V, 30.3A @ 100°C, Rds(on): 0.075Ohm) |
| Bridge Rectifier | GBU15J (600V, 15A @ 100°C) |
| APFC MOSFETs | 2x Oriental Semiconductor OSG60R099FT3F (650V, 19A @ 100°C, Rds(on): 0.099Ohm) |
| APFC Boost Diode | Sanan SDS065J010C3 (650V, 10A @ 155°C) |
| Bulk Cap(s) | Rubycon (400V, 560uF, 3000h @ 105°C, MXT ) |
| 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: |
| 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 |
F.1 General Statement
Measurement uncertainty associated with the reported results was evaluated and estimated in accordance with JCGM 100:2008 (Guide to the Expression of Uncertainty in Measurement — GUM) and ISO/IEC 17025:2017, Clauses 7.6 and 7.2.
The uncertainty budget accounts for all significant identified contributors arising from the measurement process, instrumentation, test conditions, and operator interaction.
The reported expanded uncertainty U is obtained by multiplying the combined standard uncertainty uc by a coverage factor k = 2, corresponding to a confidence level of approximately 95 %, assuming a normal probability distribution.
Unless otherwise stated, the reported uncertainty applies only to the specific measurements performed and does not include long-term drift, aging effects, or future environmental changes.
F.2 Expanded Measurement Uncertainty by Measurement Type
| Measurement | Expanded Uncertainty U (k=2, norm) |
| Efficiency | ±0.43% |
| Timings | ±2.64ms |
| Power Excursions (Transient Response) | ±0.18V |
| Conducted EMI Emissions (150 kHz – 30 MHz) | ±2.35 dB |
| Noise Output | ±1.23 dB |