CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Version:00
be quiet! Power Zone 2 1200W (US)
Serial Number030UST5401000005
Lab IDBQ12003041
Certification ID253041
  • Test Result Report ID: 25PS3041A
  • Certificate Issue Date: Nov 21, 2025
115V230V
Scheme: ETA-EMI PSU
115V230V
Scheme: LAMBDA PSU
Outside Validation Scope
Aristeidis Bitziopoulos, Certification Body General Manager

General Information

DUT Information

Brandbe quiet!
Manufacturer (OEM)FSP
SeriesPower Zone 2 US
Model NumberZ2-1200W-US
Serial Number030UST5401000005
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)7.5-15
Rated Frequency (Hz)50-60
Rated Power (W)1200
TypeATX12V
Dimensions (W x H x D)150 x 85 x 160mm
Cooling140mm Rifle Bearing Fan (Pure Wings 3, BQ PUW3-14025-HR)
Semi-Passive Operation✓
Cable DesignFully Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps202010030.3
Watts1201200153.6
Total Max. Power (W)1200

Test 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

Cables and Connectors(Non-accredited measurements)

Modular Cables
Description Cable Count Connector Count (Total) Gauge Cable Type
ATX connector 20+4 pin (600mm) 1 1 16-22AWG Tinned Copper
4+4 pin EPS12V (700mm) 1 1 16AWG Tinned Copper
8 pin EPS12V (700mm) 1 1 16AWG Tinned Copper
2x 6+2 pin PCIe (600mm) 2 2 16-18AWG Tinned Copper
6+2 pin PCIe (600mm) 1 1 16AWG Tinned Copper
12+4 pin PCIe (600mm) (600W) 2 2 16-26AWG Tinned Copper
SATA (550mm+150mm+150mm+150mm) 1 4 18AWG Tinned Copper
SATA (500mm+150mm+150mm) / 4-pin Molex (+150mm) 1 3 / 1 18AWG Tinned Copper
AC Power Cord (1370mm) - C13 Coupler 1 1 18AWG -

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 SCK 202R0 (2 ohm) & Relay
Bridge Rectifier
2x GBJ25V08 (800V, 25A @ 25°C)
APFC MOSFETs
2x Wuxin Unigroup Microelectronics TPW65R075DFD (700V, 27A @ 100°C, Rds(on): 0.075Ohm)
APFC Boost Diode
WeEn WNSC6D10650X (650V, 10A @ 96°C)
Bulk Cap(s)
2x Elite (420V, 470uF or 940uF combined, 2,000h @ 105°C, PL)
Main Switchers
2x Wuxin Unigroup Microelectronics TPW65R075DFD (700V, 27A @ 100°C, Rds(on): 0.075Ohm)

APFC Controller

Champion CM6500UNX
Resonant Controller
Champion CM6901X
IC Driver Novosense NSi6602
Topology Primary side: APFC, Half-Bridge & LLC Resonant Converter
Secondary side: [12V] Synchronous Rectification & [Minor Rails] DC-DC converters
Secondary Side
+12V MOSFETs 6x
5V & 3.3V DC-DC Converters: no info
PWM Controller(s): no info
Filtering Capacitors

Electrolytic:
7x Elite (3-6,000h @105°C, EV)
5x Elite (2-5,000h @105°C, EK)
Polymer:
6x Apaq, 8x Elite (CS), 6x CapXon
Supervisor IC Weltrend WT7527RT (OVP, UVP, OCP, PG)
Fan Model Pure Wings 3, BQPUW3-14025-HR (140mm, 12V, 0.42A, Riffle Bearing Fan)
5VSB Circuit
Synchronous Rectifcation IC
Lead Trend LD8928CA1
Standby PWM Controller
Lead Trend LD8928CA1

Test Results

Temperature & Compliance Info

Temperature Range (°C /°F)30-32 / 86-89.6
ErP Lot 3/6 Ready✓
(EU) No 617/2013 Compliance✓
ALPM (Alternative Low Power Mode) compatible✓
ATX v3.1 PSU Power Excursion✓

Performance Summary

Efficiency RatingPLATINUM
Noise RatingA+
Average Efficiency (>1450 load combinations)90.632%
Average Noise Output (>1450 Load Combinations)15.83dBA
Average PF (>1450 Load Combinations)0.989
Efficiency With 10W (≤500W) or 2% (>500W) Load69.367%
Standby Power Consumption0.0404W
12V Ripple (Full Load)28.15mV
5V Ripple (Full Load)13.12mV
3.3V Ripple (Full Load)14.95mV
5VSB Ripple (Full Load)16.27mV
12V Load Regulation0.81%
5V Load Regulation0.87%
3.3V Load Regulation1.92%
5VSB Load Regulation2.81%
Inrush Current63.600A
Efficiency RatingPLATINUM
Noise RatingA+
Average Efficiency (>1450 load combinations)92.539%
Average Noise Output (>1450 Load Combinations)15.06dBA
Average PF (>1450 Load Combinations)0.965
Efficiency With 10W (≤500W) or 2% (>500W) Load72.918%
Standby Power Consumption0.0960W
12V Ripple (Full Load)30.75mV
5V Ripple (Full Load)14.21mV
3.3V Ripple (Full Load)18.73mV
5VSB Ripple (Full Load)14.96mV
12V Load Regulation0.79%
5V Load Regulation0.81%
3.3V Load Regulation1.82%
5VSB Load Regulation2.79%
Inrush Current80.820A
12V Transient Response (200%)11.33V
5V Transient Response (200%)4.971V
3.3V Transient Response (200%)3.185V
5VSB Transient Response (200%)4.855V
Hold-Up Time & Power Ok Signal26.80ms
AC Loss to PWR_OK Hold Up Time21.20ms
PWR_OK Inactive to DC Loss Delay5.60ms
PSU Timings: T1 (20% / 100%)66.0ms66.0ms
PSU Timings: T3 (20% / 100%)120.0ms125.0ms
12V OCP (28.5°C / 44.5°C)125.20A (125.20%), 12.025V121.80A (121.80%), 12.024V
5V OCP (28.5°C / 44.5°C)28.5A (142.50%), 5.049V26.8A (134.00%), 5.053V
3.3V OCP (28.5°C / 44.5°C)27.4A (137.00%), 3.308V26.7A (133.50%), 3.312V
5VSB OCP (28.5°C / 44.5°C)4.7A (156.67%), 4.925V4.7A (156.67%), 4.922V
OPP (29.59°C / 43.92°C)135.92%129.75%

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)26.8
AC Loss to PWR_OK Hold Up Time (ms)21.2
PWR_OK Inactive to DC Loss Delay (ms)5.6

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.01 V 114.99 V 113.85 V 115.06 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.94 Hz 59.40 Hz 60.01 Hz 60.60 Hz PASS
Mains Voltage CF: 1.416 1.415 1.340 1.417 1.490 PASS
Mains Voltage THD: 0.13 % 0.10 % N/A 0.16 % 2.00 % PASS
Real Power: 0.040 W -0.008 W N/A 0.083 W N/A N/A
Apparent Power: 8.589 W 8.565 W N/A 8.614 W N/A N/A
Power Factor: 0.006 N/A N/A N/A N/A N/A
Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 230.01 V 230.01 V 227.70 V 230.05 V 232.30 V PASS
Mains Frequency: 50.00 Hz 50.00 Hz 49.50 Hz 50.00 Hz 50.50 Hz PASS
Mains Voltage CF: 1.415 1.415 1.340 1.416 1.490 PASS
Mains Voltage THD: 0.14 % 0.13 % N/A 0.16 % 2.00 % PASS
Real Power: 0.096 W 0.048 W N/A 0.179 W N/A N/A
Apparent Power: 27.835 W 27.798 W N/A 27.873 W N/A N/A
Power Factor: 0.003 N/A N/A N/A N/A N/A

Graphs

Efficiency Graph

INFO

This graph depicts the PSU`s efficiency throughout its entire operational range. For the generation of the efficiency and noise graphs we set our loaders to auto mode through our custom-made software before trying thousands of possible load combinations

INFO

This graph depicts the PSU`s efficiency throughout its entire operational range. For the generation of the efficiency and noise graphs we set our loaders to auto mode through our custom-made software before trying thousands of possible load combinations

Noise Graph

INFO

The PSU`s noise in its entire operational range and under 30-32 °C ambient is depicted in this graph. The X axis represents the load on the +12V rail(s) while the Y axis is the load on the minor rails

INFO

The PSU`s noise in its entire operational range and under 30-32 °C ambient is depicted in this graph. The X axis represents the load on the +12V rail(s) while the Y axis is the load on the minor rails

Conducted Emissions EN55032 & CISPR 32

NEUTRAL
PHASE

Indicative Performance

Efficiency under high ambient temperature

INFO

The PSU`s efficiency under high ambient temperatures with 115V and 230V input. For this graph the results of the 10-110% load regulation table are used

5VSB Efficiency

INFO

This graph depicts the efficiency levels of the 5VSB rail with 115V and 230V input

5VSB Efficiency (ERP LOT 3/6 & CEC)

Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.227W 69.324% 0.039
5.048V 0.327W 115.08V
2 0.09A 0.454W 76.502% 0.069
5.046V 0.594W 115.07V
3 0.55A 2.769W 86.488% 0.265
5.034V 3.203W 115.07V
4 1A 5.024W 86.79% 0.337
5.023V 5.791W 115.07V
5 1.5A 7.517W 86.486% 0.379
5.01V 8.694W 115.07V
6 3.001A 14.918W 84.636% 0.437
4.972V 17.629W 115.07V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.227W 56.943% 0.015
5.047V 0.399W 230.21V
2 0.09A 0.454W 67.421% 0.025
5.046V 0.678W 230.22V
3 0.55A 2.769W 82.941% 0.113
5.035V 3.341W 230.22V
4 1A 5.024W 85.037% 0.181
5.023V 5.91W 230.22V
5 1.5A 7.518W 83.27% 0.237
5.011V 9.035W 230.22V
6 3.001A 14.925W 83.879% 0.323
4.974V 17.8W 230.22V

Protection Features

OCP (Normal @ 28.5°C)12V: 125.20A (125.20%), 12.025V
5V: 28.5A (142.50%), 5.049V
3.3V: 27.4A (137.00%), 3.308V
5VSB: 4.7A (156.67%), 4.925V
OCP (Hot @ 44.5°C)12V: 121.80A (121.80%), 12.024V
5V: 26.8A (134.00%), 5.053V
3.3V: 26.7A (133.50%), 3.312V
5VSB: 4.7A (156.67%), 4.922V
OPP (Normal @ 29.6°C)1631.02W (135.92%)
OPP (Hot @ 43.9°C)1556.99W (129.75%)
OTP✓ (140°C @ 12V Heatsink)
SCP12V to Earth: ✓
5V to Earth: ✓
3.3V to Earth: ✓
5VSB to Earth: ✓
-12V to Earth: ✓
PWR_OKProper Operation
UVP (Full Load @ 90V)✓
UVP (No Damage @ 80V)✓
Conducted Emissions EN55032 & CISPR 32✓
NLO✓
Fan Failure Protection✗
SIPSurge: MOV
Inrush: NTC & Bypass Relay

Supplementary Tests (For Reference)

Typical Load Tests

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 8.122A 1.972A 1.975A 0.997A 120.015 89.27% 0 <6.0 49.22°C 0.972
12.116V 5.073V 3.342V 5.016V 134.441 40.45°C 115.02V
20% 17.270A 2.96A 2.968A 1.199A 239.984 92.025% 0 <6.0 50.18°C 0.98
12.106V 5.068V 3.336V 5.004V 260.781 40.81°C 114.98V
30% 26.719A 3.456A 3.469A 1.402A 359.268 92.62% 0 <6.0 52.31°C 0.988
12.097V 5.065V 3.33V 4.992V 387.896 41.24°C 114.94V
40% 36.274A 3.953A 3.972A 1.606A 479.637 92.38% 0 <6.0 55.9°C 0.992
12.086V 5.061V 3.324V 4.981V 519.202 41.71°C 114.89V
50% 45.452A 4.945A 4.976A 1.812A 599.382 92.204% 0 <6.0 60.28°C 0.993
12.076V 5.057V 3.316V 4.968V 650.062 42.17°C 114.85V
60% 54.700A 5.941A 5.984A 2A 719.805 91.628% 741 15.1 42.68°C 0.994
12.067V 5.052V 3.31V 4.957V 785.571 56.56°C 114.8V
70% 63.894A 6.939A 6.995A 2.225A 839.591 91.113% 740 15.1 43.17°C 0.994
12.059V 5.046V 3.303V 4.945V 921.485 57.23°C 114.75V
80% 73.177A 7.936A 8.009A 2.331A 959.581 90.467% 915 21.4 43.61°C 0.994
12.049V 5.04V 3.296V 4.936V 1060.715 60.26°C 114.7V
90% 82.800A 8.439A 8.507A 2.437A 1079.36 89.861% 1220 30.5 44.56°C 0.995
12.039V 5.037V 3.291V 4.926V 1201.14 59.47°C 114.67V
100% 92.241A 8.943A 9.039A 3.06A 1199.365 89.175% 1440 35 45.69°C 0.995
12.029V 5.032V 3.286V 4.904V 1344.963 59.45°C 114.65V
110% 101.631A 9.948A 10.155A 3.064A 1319.931 88.333% 1892 42 46.97°C 0.995
12.020V 5.026V 3.279V 4.897V 1494.275 58.05°C 114.64V
CL1 0.116A 14.281A 14.374A 0A 121.301 84.138% 0 <6.0 48.7°C 0.972
12.106V 5.056V 3.318V 5.029V 144.17 40.77°C 115.1V
CL2 0.115A 19.76A 0A 0A 101.385 83.016% 0 <6.0 51.98°C 0.975
12.113V 5.06V 3.336V 5.037V 122.13 40.13°C 115.12V
CL3 0.114A 0A 19.914A 0A 67.383 78.126% 0 <6.0 56.07°C 0.975
12.109V 5.071V 3.314V 5.032V 86.247 41.28°C 115.13V
CL4 99.659A 0A 0A 0A 1199.859 89.656% 1386 33.9 45.94°C 0.995
12.039V 5.049V 3.305V 4.992V 1338.293 58.99°C 114.73V

The results above are not used in the certification process

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 8.118A 1.971A 1.973A 0.997A 119.979 90.207% 0 <6.0 48.31°C 0.903
12.118V 5.073V 3.344V 5.017V 133.008 40.42°C 230.3V
20% 17.265A 2.959A 2.966A 1.199A 239.945 93.345% 0 <6.0 49.88°C 0.954
12.108V 5.069V 3.338V 5.004V 257.056 40.96°C 230.26V
30% 26.705A 3.455A 3.466A 1.402A 359.147 94.09% 0 <6.0 51.41°C 0.966
12.098V 5.065V 3.332V 4.993V 381.7 41.36°C 230.22V
40% 36.262A 3.952A 3.969A 1.606A 479.549 94.035% 0 <6.0 54.19°C 0.976
12.088V 5.062V 3.326V 4.981V 509.969 41.84°C 230.18V
50% 45.435A 4.944A 4.971A 1.811A 599.275 94.078% 0 <6.0 57.33°C 0.979
12.078V 5.058V 3.32V 4.969V 636.991 42.26°C 230.16V
60% 54.672A 5.938A 5.975A 2A 719.635 93.748% 742 15.2 42.87°C 0.981
12.070V 5.052V 3.314V 4.959V 767.628 53.12°C 230.15V
70% 63.864A 6.935A 6.984A 2.223A 839.399 93.464% 742 15.2 43.49°C 0.983
12.061V 5.048V 3.308V 4.947V 898.099 52.71°C 230.14V
80% 73.142A 7.931A 7.995A 2.329A 959.375 93.102% 956 22.9 43.94°C 0.985
12.052V 5.043V 3.302V 4.938V 1030.458 52.67°C 230.13V
90% 82.755A 8.434A 8.493A 2.434A 1079.178 92.706% 1196 29.8 44.22°C 0.987
12.044V 5.038V 3.296V 4.929V 1164.081 52.13°C 230.11V
100% 92.202A 8.938A 9.025A 3.057A 1199.231 92.241% 1461 35.3 45.6°C 0.988
12.034V 5.034V 3.29V 4.906V 1300.109 53.57°C 230.1V
110% 101.593A 9.943A 10.14A 3.062A 1319.851 91.754% 1891 42 46.12°C 0.989
12.024V 5.028V 3.284V 4.898V 1438.46 53.26°C 230.07V
CL1 0.114A 14.276A 14.355A 0A 121.279 85.07% 733 14.1 40.83°C 0.911
12.108V 5.057V 3.322V 5.03V 142.564 45.84°C 230.29V
CL2 0.114A 19.754A 0A 0A 101.366 83.9% 0 <6.0 50.93°C 0.894
12.115V 5.062V 3.337V 5.038V 120.812 40.83°C 230.29V
CL3 0.113A 0A 19.873A 0A 67.372 78.735% 0 <6.0 55.95°C 0.846
12.111V 5.072V 3.321V 5.034V 85.571 40.87°C 230.3V
CL4 99.632A 0A 0A 0A 1199.786 92.655% 1409 34.7 46.39°C 0.988
12.042V 5.05V 3.306V 4.993V 1294.892 54.16°C 230.11V

The results above are not used in the certification process

Light Load Tests

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.225A 0.493A 0.493A 0.198A 20.006 64.656% 0 <6.0 46.46°C 0.913
12.127V 5.076V 3.349V 5.042V 30.949 36.91°C 115.07V
40W 2.696A 0.69A 0.69A 0.298A 40.006 79.161% 0 <6.0 44.78°C 0.956
12.124V 5.075V 3.348V 5.039V 50.535 37.41°C 115.06V
60W 4.168A 0.887A 0.887A 0.397A 60.007 83.585% 0 <6.0 46.55°C 0.965
12.122V 5.075V 3.347V 5.035V 71.791 38.63°C 115.05V
80W 5.638A 1.084A 1.085A 0.497A 79.96 87.071% 0 <6.0 47.55°C 0.98
12.120V 5.074V 3.346V 5.031V 91.83 39.5°C 115.04V

The results above are not used in the certification process

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.224A 0.493A 0.492A 0.198A 19.992 68.67% 0 <6.0 43.2°C 0.547
12.129V 5.075V 3.35V 5.043V 30.275 36.24°C 230.39V
40W 2.695A 0.69A 0.69A 0.298A 39.993 78.814% 0 <6.0 43.08°C 0.701
12.127V 5.075V 3.349V 5.039V 50.72 37.04°C 230.38V
60W 4.168A 0.887A 0.887A 0.397A 59.993 84.352% 0 <6.0 45.5°C 0.801
12.124V 5.075V 3.348V 5.036V 71.122 38.24°C 230.36V
80W 5.634A 1.084A 1.084A 0.497A 79.929 87.593% 0 <6.0 47.23°C 0.857
12.122V 5.075V 3.347V 5.032V 91.252 39.11°C 230.33V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load17.43mV11.44mV11.79mV8.77mVPass
20% Load18.77mV11.85mV12.56mV8.93mVPass
30% Load20.11mV11.54mV12.72mV9.14mVPass
40% Load21.50mV11.69mV12.31mV9.65mVPass
50% Load21.91mV12.47mV13.55mV11.20mVPass
60% Load23.46mV12.93mV13.45mV11.25mVPass
70% Load25.26mV12.67mV14.17mV12.34mVPass
80% Load25.31mV12.73mV15.46mV12.18mVPass
90% Load26.81mV13.45mV15.00mV14.50mVPass
100% Load28.15mV13.12mV14.95mV16.27mVPass
110% Load29.24mV13.54mV16.41mV17.40mVPass
Crossload119.92mV12.04mV16.62mV13.61mVPass
Crossload220.21mV14.12mV14.01mV12.96mVPass
Crossload317.43mV11.95mV17.68mV13.42mVPass
Crossload426.94mV13.02mV13.84mV18.82mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load19.23mV13.91mV14.17mV10.32mVPass
20% Load20.83mV13.29mV14.27mV10.68mVPass
30% Load21.66mV13.55mV14.48mV10.68mVPass
40% Load23.97mV13.70mV13.96mV10.79mVPass
50% Load24.18mV14.32mV15.25mV12.13mVPass
60% Load25.47mV14.22mV15.36mV11.61mVPass
70% Load26.29mV14.53mV15.98mV13.01mVPass
80% Load27.69mV15.51mV16.96mV13.32mVPass
90% Load28.56mV15.35mV16.65mV13.78mVPass
100% Load30.75mV14.21mV18.73mV14.96mVPass
110% Load30.86mV15.32mV18.65mV15.13mVPass
Crossload121.73mV13.53mV19.62mV14.63mVPass
Crossload222.02mV15.51mV16.39mV14.30mVPass
Crossload319.23mV13.50mV19.34mV14.04mVPass
Crossload427.30mV15.01mV15.15mV14.86mVPass

The results above are not used in the certification process

be quiet! Power Zone 2 1200W (US)

Top side
Power specifications label
Fan
PSU
All data and graphs included in this test report can be used by any individual on the following conditions:
› It should be mentioned that the test results are provided by Cybenetics
› The link to the original test results document should be provided in any case
Cybenetics offers the ETA and Lambda voluntary certification programs, through which the efficient and silent power supplies are promoted
CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
www.cybenetics.com - info@cybenetics.com