Customer: -
Wilhelm-Bergner-Str. 11 c, 21509 Glinde, Germany

Pure Power 13 M 550W

Report Number: 25PS2851A
Customer ID: 22
Lab ID: BQ55002851

Test Report Results

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, Rohde & Schwarz 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)90.603%92.463%
Efficiency Graphs
Average PF (>1450 Load Combinations)0.9870.957
Standby Power Consumption0.0434W0.1319W
ErP Lot 3/6 Ready
(EU) No 617/2013 Compliance
Average Efficiency VSB85.813%83.580%
Conducted Emissions EN55032 & CISPR 32Passed

Section C: LAMBDA

Voltage115V230V
Noise Rating (>1450 Load Combinations)6.00dBA6.00dBA
Noise Graphs

Section D: ATX

Efficiency With 10W (≤500W) or 2% (>500W) Load69.680
Hold Up Time25.30
Power OK23.40
Power OK to DC Loss1.90

Section E: Information about DUT

Model Namebe quiet!
Lab IDBQ55002851
Serial NumberEUS5081000876
Date of receiptMay 9, 2025
Testing DateJun 16, 2025
Report Issued DateJun 18, 2025
DUT Notes2851
Engineer Name
Authorized By the Laboratory General ManagerAristeidis Bitziopoulos
Signature

Cables And Connectors

Modular Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 24 pin (550mm) 1 1 18-22AWG No
4+4 pin EPS12V (650mm) 1 1 18AWG No
2x 6+2 pin PCIe (500mm) 2 2 18AWG No
12+4 pin PCIe (600mm) (300W) 1 1 16-28AWG No
SATA (500mm+150mm+150mm) 1 3 16-28AWG No
SATA (510mm+150mm) / 4-pin Molex (+150mm+145mm) 1 2 / 2 18AWG No
AC Power Cord (1350mm) - C13 Coupler 1 1 18AWG -

Technical Specifications

Manufacturer (OEM)

FSP

Max. DC Output

550W

Efficiency (115V) Cybenetics Platinum (90.603%)
Efficiency (230V) Cybenetics Platinum (92.463%)

Noise (115V)

Cybenetics A++ (5 dB[A])

Noise (230V)

Cybenetics A++ (5 dB[A])

Modular

✓ (Fully)

Intel C6/C7 Power State Support

Operating Temperature (Continuous Full Load)

0 - 50°C

Over Voltage Protection

Under Voltage Protection

Over Power Protection

Over Current (+12V) Protection

Over Temperature Protection

Short Circuit Protection

Surge Protection

Inrush Current Protection

Fan Failure Protection

No Load Operation

Cooling

120mm Rifle Bearing Fan (BQ QF2-12025-LS)

Semi-Passive Operation

Dimensions (W x H x D)

150 x 85 x 160mm

Weight

1.65 kg (3.64 lb)

Form Factor

ATX12V v3.1, EPS 2.92

ATX 3.1 & PCIe 5.1 ready
Alternative Low Power Mode (ALPM) compatible

Warranty

10 Years

Parts Description

General Data
Manufacturer (OEM) FSP
PCB Type Double-Sided
Primary Side
Transient Filter 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush Protection NTC Thermistor SCK085A & Relay
Bridge Rectifier(s)

2x Yangjie GBJ1508 (800V, 15A @ 87°C)

APFC MOSFETs

2x STMicroelectronics STF18N60M2 (650V, 8A @ 100°C, Rds(on): 0.280Ohm)

APFC Boost Diode

1x DSC06C065 (650V, 6A @ 25°C)

Bulk Cap(s)

2x Elite (420V, 270uF each or 540uF combined, 3000h @ 85°C, GSF(M))

Main Switchers

2x Toshiba TK12A60W (600V, 11.5A @ 25°C, Rds(on): 0.3Ohm)

IC Driver

Novosense NSI6602

APFC Controller

Champion CM6500UNX

Resonant Controller Champion CM6901X
Topology
  • Primary side: APFC, Half-Bridge & LLC Resonant Converter
  • Secondary side: [12V] Synchronous Rectification, [Minor Rails] DC-DC converters
Secondary Side
+12V MOSFETs 4x CMR024N04NS
5V & 3.3V DC-DC Converters: 4x Nexperia PSMN3RO-30YLD (30V, 100A @ 25°C, Rds(on): 3.1mOhm) PWM Controller(s): ANPEC APW7159C
Filtering Capacitors

Electrolytic: 3x Elite (2,000 @ 105°C, EL) 2x Elite (2-5,000 @ 105°C, ED) 1x Elite (4-10,000 @ 105°C, EY) 2x Elite (3-6,000 @ 105°C, EV) Polymer: 19x Apaq, 8 Elite (CS), 9x Biostar

Supervisor IC IN1S4241-SDG (OCP, OVP, UVP, SCP, PG)
Fan Controller Grenergy GR8031
Fan Model BQ QF2-12025-LS (120mm, 12V, 0.12A, Rifle Bearing Fan)
5VSB Circuit
Synchronous Rectification Driver

Leadtrend LD8926AA13 Synchronous Rectification IC

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)5-10
Rated Frequency (Hz)50-60
Rated Power (W)550
TypeATX12V
Dimensions (W x H x D)
Cooling120mm Rifle Bearing Fan (BQ QF2-12025-LS)
Semi-Passive Operation
Cable DesignFully Modular

Section F: Deviation Additions, deviations, and exceptions to the method table

Efficiency Uncertainty Estimation

The Efficiency Measurement’s Uncertainty is ±0.15%

The reported expanded uncertainty (U) was derived as the product of the combined standard uncertainty (u) and the coverage factor k = 2, corresponding to a confidence interval of approximately 95%. Measurement uncertainty was determined in accordance with JCGM Guide 100:2008, "Guide to the Expression of Uncertainty in Measurements". The estimate of the reported uncertainty pertains to values obtained during the measurements and does not account for possible long-term changes.

Efficiency Measurement Uncertainty Budget

Source of Uncertainty Standard Uncertainty, u(xi) Relative Standard Uncertainty, u(xi)/xi
Intralab Reproducibility 0.0310 0.00031
Electronic loads Calibration 0.0500 0.00050
Power Analyzer Calibration 0.0250 0.00025
Operator and Test Fixture 0.0350 0.00035
Relative Combined Standard Uncertainty (RSS): 0.00073
% Expanded Uncertainty U (k=2, norm): 0.15
Noise Output  Uncertainty Estimation

The Noise Measurement’s Uncertainty is ±1.23 dBA

The reported expanded uncertainty (U) was derived as the product of the combined standard uncertainty (u) and the coverage factor k = 2, corresponding to a confidence interval of approximately 95%. Measurement uncertainty was determined in accordance with JCGM Guide 100:2008, "Guide to the Expression of Uncertainty in Measurements". The estimate of the reported uncertainty pertains to values obtained during the measurements and does not account for possible long-term changes.

Noise Output Measurement Uncertainty Budget
Source of Uncertainty

Standard Uncertainty, u(xi)/xi

(dBA)
Intralab Reproducibility 0.031
Mic Calibrator 4231 calibration 0.200
Microphone frequency response 0.577
Temperature 0.12
 Position error  0.058
Relative Combined Standard Uncertainty (RSS): 0.61
Expanded Uncertainty U (k=2, norm): 1.23
Conducted Electromagnetic Interference (EMI) Emissions Uncertainty Estimation

The Conducted EMI Emissions Measurement’s Uncertainty is ±1.75 dB

The reported expanded uncertainty (U) was derived as the product of the combined standard uncertainty (u) and the coverage factor k = 2, corresponding to a confidence interval of approximately 95%. Measurement uncertainty was determined in accordance with JCGM Guide 100:2008, "Guide to the Expression of Uncertainty in Measurements". The estimate of the reported uncertainty pertains to values obtained during the measurements and does not account for possible long-term changes.

Conducted EMI Measurement Uncertainty Budget
Source of Uncertainty

Standard Uncertainty, u(xi)/xi

(dB)
Spectrum Analyzer total measurement uncertainty 0.250
Spectrum Analyzer calibration 0.500
Noise and Signal Quality 0.577
Bandwidth and Resolution Bandwidth (RBW) 0.289
Measurement time and Averaging  0.115
Environmental Factors 0.115
Relative Combined Standard Uncertainty (RSS): 0.87
Expanded Uncertainty U (k=2, norm): 1.75