CYS-CYSAB accreditation symbol, ISO/IEC 17025:2017
No. of Accred.: L152
TESTING
Customer: Cybenetics LTD
Syrou 6, Latsia, 2231, Nicosia Cyprus

EG0850Gv2

Report Number: 26PS3423A
Customer ID: 79
Lab ID: LL85003423

Test Results Report

Section A: Testing 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

Section B: ETA

Voltage115V230V
Efficiency (>1450 Load Combinations)89.043%91.195%
Efficiency Graphs
Average PF (>1450 Load Combinations)0.9810.939
12V Step8.00W
5V/3.3V Step2.00W
Standby Power Consumption0.0652W0.1178W
ErP Lot 3/6 Ready✓
(EU) No 617/2013 Compliance✓
Average Efficiency VSB79.994%79.403%
Conducted Emissions EN 55032 & CISPR 32 (48W)Passed

Section C: LAMBDA

Voltage115V230V
Noise Rating (>1450 Load Combinations)19.45dBA19.25dBA
Noise Graphs

Section D: ATX

Efficiency With 10W (≤500W) or 2% (>500W) Load67.138%
Hold Up Time18.20ms
Power OK16.90ms
Power OK to DC Loss1.30ms
Test\Rail+12V5V3.3V5VSB
100ms12.1024.9963.2804.922
10ms11.6914.9463.2304.875
1ms11.5604.9293.2104.860
0.1ms11.4344.9113.1884.875

Section E: Information about DUT

Product Identification Details
BrandLian Li
ModelEG0850Gv2
OEM/ODMHelly Technology (Guangzhou) Co., Ltd.
Serial NumberG9PEG0850CBY263500002
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)0 - 40
TypeATX12V
Cable DesignFully Modular
Warranty10 years
Cybenetics
Dimensions (W x H x D)150 x 86 x 182 mm
Weight1.55 kg (3.41 lb)
Cooling120mm Fluid Dynamic Bearing Fan (D12SH-12)
Semi-Passive Operation✓ (selectable)
Cybenetics Testing Information
Lab IDLL85003423
Date of receiptSep 8, 2026
Testing DateSep 23, 2026
Report Issued DateOct 13, 2026
DUT NotesIn the first sample, the 12V-2x6 (12+4-pin) cable, rated at 450W, used 18AWG wires for its power conductors, while the ATX v3.0 and v3.1 specifications require 16AWG for all twelve power and ground pins, regardless of the cable's power rating. Lian Li re-sent a new cable with 16AWG power gauges and said this change will also be passed to production to meet ATX v3.1 requirements.
Engineer NameIoannis Kalyviotis
Authorized By the Laboratory Technical ManagerAristeidis Bitziopoulos
Signature

Cables And Connectors(Non-accredited measurements)

Modular Cables
Description Cable Count Connector Count (Total) Gauge Cable Type
ATX connector 24 pin (600mm) 1 1 16AWG Tinned Copper
4+4 pin EPS12V (700mm) 1 1 18AWG

Tinned Copper

8 pin EPS12V (700mm) 1 1 18AWG

Tinned Copper

6+2 pin PCIe (550mm) 3 3 18AWG Tinned Copper
12+4 pin PCIe (600mm) (450W) 1 1 16-24AWG Tinned Copper
SATA Y cable, 2 branches (380mm+150mm each) 1 4 18AWG Tinned Copper
SATA (300mm+15mm+15mm+15mm) 1 4 18AWG Tinned Copper
4-pin Molex (450mm+150mm+150mm+150mm) 1 4 18AWG Tinned Copper
AC Power Cord (1400mm) - C13 coupler 1 1 3G 0.75mm²  

Protection Features(Non-accredited measurements)

Over Power Protection✓
Over Current (+12V) Protection✓
Over Temperature Protection✓
Short Circuit Protection✓
Surge Protection✓
Inrush Current Protection✓
Fan Failure Protection✗

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 1x Cantherm MF72-10D20 (10 ohm) & Relay
Bridge Rectifier(s) 2x GBU1510 (1000V, 15A @ 100°C)
APFC MOSFETs 2x PIP Semiconductor PTA28N50 (500V, 18A @ 100°C, Rds(on): 0.21Ohm)
APFC Boost Diode SID6P650 (650V, 6A @ 155°C)
Bulk Cap(s) 2x Rubycon (420V, 330uF, @ 105°C, CE)
Main Switchers 4x SI-Trend SI16N50F (500V, 16A @ 25°C, Rds(on): 0.35Ohm)
Resonant Controller Champion CM6901T6X
APFC Controller Champion CM6500UNX
Topology Primary side: APFC, Full-Bridge & LLC Resonant converter
Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side
+12V MOSFETs 6x PIP Semiconductor SPTJ04R014E
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): 1x uPi semi uP3861
Filtering Capacitors

Electrolytic:
4x Ltec (2-5,000h @105°C, LXY)
1x Ltec (4-7,000h @105°C, LZG)
1x Teapo (5,000h @105°C, TX)
Polymer:
5x Beryl, 26x Chengx

Supervisor IC Weltrend WT7527RA (OVD, PGO, UVD, OCD)
Fan Model Yate Loon D12SH-12 (120mm, 12V, 0.30A, Fluid Dynamic Bearing Fan)
5VSB
Rectifier 1x Dongke Semiconductor DK5V60R20S
Standby PWM Controller Excelliance MOS EM8569C

Photos

Top side
Top side
Power specifications label
Power specifications label
Fan
Fan
PSU Internals
PSU Internals

Section F: Uncertainty

Efficiency Uncertainty Estimation

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