
EG0850G (#2)
| 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) | 88.788% | 91.266% |
| Efficiency Graphs | ![]() | ![]() |
| Average PF (>1450 Load Combinations) | 0.991 | 0.967 |
| 12V Step | - | |
| 5V/3.3V Step | - | |
| Standby Power Consumption | 0.0438W | 0.0852W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 80.446% | 80.466% |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 18.73dBA | 18.61dBA |
| Noise Graphs | ![]() | ![]() |
| Efficiency With 10W (≤500W) or 2% (>500W) Load | 68.183% |
| Hold Up Time | 17.50ms |
| Power OK | 14.30ms |
| Power OK to DC Loss | 3.20ms |
| Test\Rail | +12V | 5V | 3.3V | 5VSB |
| 100ms | 12.005 | 5.061 | 3.303 | 5.058 |
| 10ms | 11.794 | 5.037 | 3.272 | 5.046 |
| 1ms | 11.692 | 5.024 | 3.256 | 5.039 |
| 0.1ms | 11.594 | 5.011 | 3.241 | 5.035 |
| Product Identification Details | |
| Brand | Lian Li |
| Model | EG0850G (#2) |
| OEM | Helly |
| Serial Number | G9PEG0850GBY244600039 |
| Product Specifications | |
| Manufacturer | |
| Rated Voltage (Vrms) | 100-240 |
| Rated Current (Arms) | 5-10 |
| Rated Frequency (Hz) | 50-60 |
| Rated Power (W) | 850 |
| Operating Temperature (Continuous Full Load) (°C) | |
| Type | ATX12V |
| Cable Design | Fully Modular |
| Warranty | |
| Cybenetics | |
| Dimensions (W x H x D) | |
| Weight | |
| Cooling | 120mm Fluid Dynamic Bearing Fan (HA1225M12F-Z) |
| Semi-Passive Operation | ✓ |
| Cybenetics Testing Information | |
| Lab ID | LL85002747 |
| Date of receipt | Feb 6, 2025 |
| Testing Date | Feb 17, 2025 |
| Report Issued Date | Feb 21, 2025 |
| DUT Notes | Some protection features need adjustment. As a results, the ATX badge is not provided. |
| Engineer Name | - |
| Authorized By the Laboratory Technical Manager | Aristeidis Bitziopoulos |
| Signature | ![]() |
| Modular Cables | ||||
| Description | Cable Count | Connector Count (Total) | Gauge | In Cable Capacitors |
| ATX connector 20+4 pin (625mm) | 1 | 1 | 16-22AWG | No |
| 4+4 pin EPS12V (745mm) | 1 | 1 | 16AWG | No |
| 8 pin EPS12V (745mm) | 1 | 1 | 16AWG | No |
| 6+2 pin PCIe (645mm) | 3 | 3 | 16AWG | No |
| 6+2 pin PCIe (645mm+100mm) | 1 | 2 | 16AWG | No |
| 12+4 pin PCIe (650mm) (600W) | 1 | 1 | 16-26AWG | No |
| 2x SATA (380mm+150mm) | 1 | 4 | 16AWG | No |
| SATA (310mm+15mm+15mm+15mm) | 1 | 4 | 16AWG | No |
| SATA (400mm+150mm+150mm+150mm) | 1 | 4 | 16AWG | No |
| 4-pin Molex (495mm+150mm+150mm+150mm) | 1 | 4 | 16AWG | No |
| AC Power Cord (1390mm) - C13 coupler | 1 | 1 | 18AWG | - |
| Over Voltage Protection | ✓ |
| Under Voltage Protection | ✓ |
| Over Power Protection | ✓ |
| Over Current (+12V) Protection | ? |
| Over Temperature Protection | ✓ |
| Short Circuit Protection | ✓ |
| Surge Protection | ✓ |
| 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 | 1x NTC Thermistor MF73T-1 20/7 (20 ohm) & Relay |
| Bridge Rectifier(s) | 2x GBU1508 (800V, 15A @ 100°C) |
| APFC MOSFETs | 2x Fuxin Semiconductor FXN28N50F (500V, 16.7A @ 100°C, Rds(on): 0.20Ohm) |
| APFC Boost Diode | 1x WeEn BYC15-600P (600V, 15A @ 121°C) |
| Bulk Cap(s) | 1x TDK (420V, 560uF, 2,000h @ 105°C, EPCOS) |
| Main Switchers | 2x Fuxin Semiconductor FXN28N50F (500V, 16.7A @ 100°C, Rds(on): 0.20Ohm) |
| Resonant Controller | Champion CM6901T6X |
| APFC Controller | Champion CM6500UNX |
| Topology | Primary side: APFC, Half-Bridge & LLC Resonant converter Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 4x Huayi HYG009N04LS1C2 (40V,233A @ 100°C, Rds(on): 0.96mOhm) |
| 5V & 3.3V | DC-DC Converters: 2x XSEMI XP3NA3R4MT (30V, 46A @ 100°C, Rds(on): 3.4mOhm) & 2x Rectron Semiconductor RMN3N5R0DF (30V, 19.7A @ 70°C, Rds(on): 5mOhm) PWM Controller(s): 2x Anpec APW7073 |
| Filtering Capacitors | Electrolytic: 8x Ltec (2-5,000h @105°C, LXY) 3x Ltec (4-7,000h @105°C, LZG) 1x CS (3,000h @105°C, WE) Polymer: 16x Beryl, 7x Chengx (PC) |
| Supervisor IC | Weltrend WT7527RA (OVD, PGO, UVD, OCD) |
| Fan Model | Hong Hua HA1225M12F-Z (120mm, 12V, 0.45A, Fluid Dynamic Bearing Fan) |
| 5VSB | |
| Rectifier(s) | P6SMB (220V, 1A) & 1x Dongke Semiconductor DK5V60R20S |
| Standby PWM Controller | Excelliance MOS EM8569C |
| Photos | ![]() | ![]() |
| Top side | Power specifications label |
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 | ±0.18% |
| Timings | ±0.48ms |
| Power Excursions (Transient Response) | ±0.1V |
| Conducted EMI Emissions (150 kHz – 30 MHz) | ±2.35 dBμV |
| Noise Output | ±1.23 dB |