Customer: Cybenetics LTD
Syrou 6, Latsia, 2231, Nicosia Cyprus

Toughpower GF3 850W (#2)

Report Number: 26PS3368A
Customer ID: 56
Lab ID: TT85003368

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)89.061%91.200%
Efficiency Graphs
Average PF (>1450 Load Combinations)0.9810.939
12V Step9.00W
5V/3.3V Step2.00W
Standby Power Consumption0.0490W0.0950W
ErP Lot 3/6 Ready
(EU) No 617/2013 Compliance
Average Efficiency VSB76.304%76.304%
Conducted Emissions EN 55032 & CISPR 32 (48W)Passed
Conducted Emissions Graphs

Section C: LAMBDA

Voltage115V230V
Noise Rating (>1450 Load Combinations)29.63dBA30.35dBA
Noise Graphs

Section D: ATX

Efficiency With 10W (≤500W) or 2% (>500W) Load66.116%
Hold Up Time18.30ms
Power OK17.10ms
Power OK to DC Loss1.20ms
Test\Rail+12V5V3.3V5VSB
100ms12.0485.0123.3154.990
10ms11.5824.9853.2784.906
1ms11.4554.9753.2684.881
0.1ms11.3404.9733.2644.859

Section E: Information about DUT

Product Identification Details
BrandThermaltake
ModelToughpower GF3 850W (#2)
OEM/ODMCWT
Serial NumberPSTPD0850FNFAGU4BRVW00438
Product Specifications
Manufacturer
Rated Voltage (Vrms)100-240
Rated Current (Arms)12
Rated Frequency (Hz)47-63
Rated Power (W)850
Operating Temperature (Continuous Full Load) (°C)0 - 50
TypeATX12VO
Cable DesignFully Modular
Warranty10 years
Cybenetics
Dimensions (W x H x D)150 x 87 x 140mm
Weight1.48 kg (3.26 lb)
Cooling135mm Fluid Dynamic Bearing Fan (CWT13525H12F-9)
Semi-Passive Operation
Cybenetics Testing Information
Lab IDTT85003368
Date of receiptJul 3, 2026
Testing DateAug 4, 2026
Report Issued DateAug 11, 2026
Engineer NameEfstathios Papadopoulos
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 20+4 pin (550mm) 1 1 16AWG Tinned Copper
4+4 pin EPS12V (700mm) 2 2 16AWG Tinned Copper
6+2 pin PCIe (600mm+150mm) 2 4 16AWG Tinned Copper
12+4 pin PCIe (600mm) (600W) 2 2 16-26AWG Tinned Copper
SATA (450mm+150mm+150mm) 2 6 18AWG Tinned Copper
SATA (500mm+150mm) / 4-pin Molex (450mm+150mm+150mm+150mm) 1 4 18AWG Tinned Copper
AC Power Cord (1350mm) - C13 coupler 1 1 14AWG  

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)

CWT

PCB Type Double-Sided
Primary Side
Transient Filter 2x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush Protection 1x NTC Thermistor SCK-056 (5 Ohm @ 25°C) & Relay
Bridge Rectifier 1x Yangjie GBU1506 (600V, 15A @ 100°C)
APFC MOSFETs 2x Great Power GP28S50YERD   (500V, 17.7A @ 100°C, Rds(on): 0.125Ohm)
APFC Boost Diode 1x CRMicro  CRXI06D065G2  (650V, 6A @ 167°C)
Bulk Cap(s) 1x Nippon Chemi-Con (400V, 560uF 2000h @ 105°C, KMR)
Main Switchers 4x Silan SVF20N50F (500V, 12.6A @ 100°C, Rds(on): 0.27Ohm)

APFC Controller

Champion CM6500UNX &
Sync Power SPN5003 (reducing no load consumption)

Resonant Controller Champion CM6901XIS
Topology Primary side: APFC, Full-Bridge & LLC Resonant Converter
Secondary side: [12V] Synchronous Rectification & [Minor Rails] DC-DC converters
Secondary Side
+12V MOSFETs 6x Infineon BSC014N04LS (40V, 100A @ 100°C, Rds(on): 1.4mOhm)
5V & 3.3V DC-DC Converters: 4x UBIQ Semi  QM3054M6  (30V, 61A @ 100°C, Rds(on): 4.8mOhm)
PWM Controller(s): ANPEC  APW7159C
Filtering Capacitors

Electrolytic:
3x Jun Fu (h@ 105°C, WL)
3x Jun Fu (h@ 105°C, WG)
9x ChengX (h@ 105°C, GR)
Polymer:
17x Chinsan
10x ChengX

Fan Model TT-13525 CWT13525H12F-9 (135mm, 12V, 0.4A, Fluid Dynamic Bearing Fan)
5VSB Circuit
Rectifier PFC Device PFS5V45H
Standby PWM Controller Power Integrations TNY287PG

Photos
Top sidePower specifications label

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 ±0.18%
Timings ±0.48ms
Power Excursions (Transient Response) ±0.1V
Conducted EMI Emissions (150 kHz – 30 MHz) ±2.35 dB
Noise Output ±1.23 dB