CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
be quiet! Power Zone 2 750W
Serial Number006EUS4341000003
Lab IDBQ75002681
  • Report: 24PS2681A
  • Receipt Date: Dec 6, 2024
  • Test Date: Dec 18, 2024
  • Report Date: Dec 20, 2024
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

Brandbe quiet!
Manufacturer (OEM)FSP
SeriesPOWER ZONE 2
Model NumberZ2-750W
Serial Number006EUS4341000003
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)5-10
Rated Frequency (Hz)50-60
Rated Power (W)750
TypeATX12V
Cooling140mm Rifle Bearing Fan (Pure Wings 3, BQ PUW3-14025-HR)
Semi-Passive Operation✓
Cable DesignFully Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps202062.530.3
Watts120750153.6
Total Max. Power (W)750

Test Equipment

Electronic Loads

Chroma 63601-5 x2
Chroma 63600-2
63640-80-80 x10
63610-80-20
AC Sources Chroma 6530, APM SP300VAC4000W-P
Power Analyzers RS HMC8015, N4L PPA1530, N4L PPA5530
Oscilloscopes Picoscope 4444, Rigol DS7014, 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, Keithley 2015 - THD
UPS FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA
Isolation Transformer 4kVA
Testing Methodology Cybenetics PSU Test Protocol

Cables and Connectors

Modular Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (590mm) 1 1 16-22AWG No
4+4 pin EPS12V (700mm) 1 1 16AWG No
8 pin EPS12V (700mm) 1 1 16AWG No
2x 6+2 pin PCIe (600mm) 1 2 16-18AWG No
6+2 pin PCIe (600mm) 1 1 16AWG No
12+4 pin PCIe (600mm) (600W) 1 1 16-26AWG No
SATA (550mm+150mm+150mm+155mm) 1 4 18AWG No
SATA (500mm+150mm+150) / 4-pin Molex (+150mm) 1 3/1 18AWG No
AC Power Cord (1350mm) - C13 coupler 1 1 18AWG -

Parts Description

General Data
Manufacturer (OEM)

FSP
PCB Type Single-Sided
Primary Side
Transient Filter 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush Protection 1x NTC Thermistor SCK 202R0 (2 ohm) & Relay
Bridge Rectifier(s)

2x GBJ25V08 (800V, 25A @ 25°C)
APFC MOSFETs

2x Magnachip MMFT65R090RTH (650V, 22A @ 100°C, Rds(on): 0.090Ohm)
APFC Boost Diode

1x ROHM SCS306AM (650V, 6A @ 120°C)
Bulk Cap(s)

2x Elite (420V, 270uF or 540uF combined, 3,000h @ 105°C, PK)
Main Switchers

2x Infineon IPA60R180P7 (650V, 11A @ 100°C, Rds(on): 0.180Ohm)
IC Driver

Novosense NSi6602
Resonant Controller

Champion CM6901X
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 Nexperia PSMN1R4-40YLD (40V, 240A @ 25°C, Rds(on): 1.4mOhm)
5V & 3.3V DC-DC Converters: 4x Magnachip MDU1513 (30V, 70.4A @ 70°C, Rds(on): 4.6mOhm) PWM Controller(s): UPI-semi uP3861P
Filtering Capacitors

Electrolytic: 5x Elite (3-5,000h @105°C, EJ) 5x Elite (2-5,000h @105°C, ED) 4x Elite (3-6,000h @105°C, EV) Polymer: 8x Apaq, 7x Elite (CS), 5x CapXon
Supervisor IC Weltrend WT7527RA (OCP, OVP, UVP, SCP,PG)
Fan Controller Grenergy GR8031
Fan Model Pure Wings 3, BQPUW3-14025-HR (140mm, 12V, 0.42A, Rifle Bearing Fan)
5VSB
Rectifier

MPS MP9989 & 1x CET CEF03N8 (800V, 2A @ 100°C, Rds(on): 4.8Ohm)
Standby PWM Controller

MPS MP9989

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

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)17.9
AC Loss to PWR_OK Hold Up Time (ms)13.4
PWR_OK Inactive to DC Loss Delay (ms)4.5

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.06 V 115.01 V 113.85 V 115.09 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.99 Hz 59.40 Hz 60.01 Hz 60.60 Hz PASS
Mains Voltage CF: 1.416 1.415 1.340 1.418 1.490 PASS
Mains Voltage THD: 0.13 % 0.09 % N/A 0.18 % 2.00 % PASS
Real Power: 0.054 W -0.008 W N/A 0.087 W N/A N/A
Apparent Power: 9.034 W 8.822 W N/A 9.267 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: 231.00 V 230.89 V 227.70 V 231.06 V 232.30 V PASS
Mains Frequency: 50.00 Hz 49.99 Hz 49.50 Hz 50.01 Hz 50.50 Hz PASS
Mains Voltage CF: 1.417 1.416 1.340 1.419 1.490 PASS
Mains Voltage THD: 0.17 % 0.14 % N/A 0.26 % 2.00 % PASS
Real Power: 0.094 W 0.047 W N/A 0.175 W N/A N/A
Apparent Power: 30.386 W 29.913 W N/A 30.904 W N/A N/A
Power Factor: 0.003 N/A N/A N/A N/A N/A

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

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 0.228W 68.632% 0.037
5.062V 0.333W 114.91V
2 0.09A 0.455W 75.963% 0.065
5.06V 0.6W 114.91V
3 0.55A 2.776W 86.068% 0.258
5.049V 3.225W 114.91V
4 1A 5.037W 86.784% 0.324
5.037V 5.804W 114.91V
5 1.5A 7.538W 86.433% 0.372
5.025V 8.72W 114.91V
6 3A 14.959W 85.132% 0.437
4.987V 17.572W 114.9V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.228W 55.736% 0.013
5.062V 0.41W 229.91V
2 0.09A 0.455W 66.998% 0.022
5.061V 0.682W 229.9V
3 0.55A 2.776W 83.116% 0.104
5.048V 3.34W 229.89V
4 1A 5.036W 84.597% 0.17
5.036V 5.952W 229.88V
5 1.5A 7.535W 85.306% 0.204
5.023V 8.833W 229.89V
6 3A 14.949W 85.114% 0.303
4.984V 17.565W 229.88V

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% 4.368A 1.963A 1.969A 0.993A 74.996 87.536% 0 <6.0 49.95°C 0.948
12.227V 5.094V 3.352V 5.035V 85.675 40.01°C 114.89V
20% 9.742A 2.948A 2.958A 1.194A 149.925 91.372% 0 <6.0 52.27°C 0.968
12.219V 5.089V 3.347V 5.024V 164.082 40.57°C 114.86V
30% 15.468A 3.442A 3.455A 1.396A 224.922 92.184% 0 <6.0 53.69°C 0.975
12.211V 5.085V 3.343V 5.014V 243.991 41.34°C 114.84V
40% 21.208A 3.937A 3.953A 1.599A 300.006 92.282% 0 <6.0 55.36°C 0.981
12.203V 5.08V 3.339V 5.004V 325.099 41.81°C 114.81V
50% 26.561A 4.926A 4.95A 1.803A 374.408 91.995% 0 <6.0 56.61°C 0.985
12.194V 5.075V 3.334V 4.992V 406.982 42.12°C 114.78V
60% 31.965A 5.918A 5.95A 2A 449.291 91.441% 0 <6.0 58.77°C 0.988
12.186V 5.07V 3.328V 4.983V 491.345 42.85°C 114.76V
70% 37.371A 6.91A 6.951A 2.213A 524.251 90.885% 738 14.9 43.32°C 0.99
12.179V 5.066V 3.324V 4.971V 576.83 47.34°C 114.73V
80% 42.849A 7.902A 7.955A 2.317A 599.44 90.342% 903 21.8 43.92°C 0.992
12.172V 5.061V 3.318V 4.962V 663.525 47.35°C 114.7V
90% 48.663A 8.402A 8.447A 2.422A 674.453 89.796% 1068 27.4 44.47°C 0.992
12.164V 5.057V 3.314V 4.953V 751.094 47.31°C 114.67V
100% 54.289A 8.904A 8.973A 3.042A 749.654 89.172% 1223 31.4 45°C 0.993
12.157V 5.053V 3.31V 4.931V 840.692 47.5°C 114.64V
110% 59.792A 9.904A 10.077A 3.045A 824.675 88.455% 1405 35.2 46.1°C 0.994
12.149V 5.048V 3.304V 4.925V 932.312 49.08°C 114.61V
CL1 0.113A 14.252A 14.365A 0A 121.282 85.504% 0 <6.0 46.66°C 0.966
12.214V 5.065V 3.321V 5.048V 141.844 40°C 114.86V
CL2 0.113A 19.728A 0A 0A 101.342 84.028% 0 <6.0 49.11°C 0.962
12.220V 5.067V 3.334V 5.055V 120.604 40.37°C 114.87V
CL3 0.113A 0A 19.874A 0A 67.391 78.723% 0 <6.0 50.95°C 0.948
12.218V 5.072V 3.321V 5.055V 85.606 40.69°C 114.88V
CL4 61.623A 0A 0A 0A 749.496 89.763% 1237 31.7 45°C 0.993
12.163V 5.069V 3.328V 5.019V 834.975 48.22°C 114.66V

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% 4.368A 1.963A 1.969A 0.993A 74.996 88.932% 0 <6.0 47.06°C 0.849
12.227V 5.094V 3.352V 5.035V 84.329 40.37°C 229.87V
20% 9.742A 2.948A 2.958A 1.194A 149.927 92.556% 0 <6.0 48.2°C 0.926
12.219V 5.089V 3.347V 5.024V 161.986 40.5°C 229.86V
30% 15.468A 3.442A 3.455A 1.396A 224.926 93.637% 0 <6.0 50.11°C 0.949
12.211V 5.085V 3.343V 5.013V 240.211 41°C 229.85V
40% 21.209A 3.937A 3.954A 1.599A 300.013 93.933% 0 <6.0 51.6°C 0.962
12.203V 5.08V 3.339V 5.003V 319.39 41.55°C 229.84V
50% 26.563A 4.926A 4.95A 1.803A 374.42 93.905% 0 <6.0 53.26°C 0.969
12.195V 5.075V 3.333V 4.992V 398.723 42.11°C 229.82V
60% 31.966A 5.918A 5.95A 2A 449.306 93.624% 0 <6.0 55.52°C 0.972
12.186V 5.07V 3.328V 4.982V 479.908 42.9°C 229.81V
70% 37.377A 6.911A 6.953A 2.213A 524.273 93.151% 718 13.9 43.35°C 0.976
12.177V 5.065V 3.323V 4.97V 562.818 45.86°C 229.8V
80% 42.857A 7.903A 7.958A 2.318A 599.486 92.848% 882 21 42.7°C 0.979
12.170V 5.06V 3.318V 4.961V 645.666 45.51°C 229.78V
90% 48.675A 8.404A 8.45A 2.423A 674.51 92.52% 1064 27.1 44.17°C 0.981
12.163V 5.056V 3.313V 4.952V 729.041 46.55°C 229.77V
100% 54.304A 8.907A 8.972A 3.043A 749.725 92.122% 1235 31.7 45.62°C 0.982
12.154V 5.052V 3.311V 4.929V 813.839 47.79°C 229.76V
110% 59.813A 9.907A 10.082A 3.047A 824.756 91.586% 1417 35.6 46.22°C 0.983
12.145V 5.046V 3.303V 4.922V 900.527 48.28°C 229.74V
CL1 0.115A 14.255A 14.369A 0A 121.29 86.596% 0 <6.0 45.48°C 0.916
12.212V 5.064V 3.32V 5.047V 140.064 40.84°C 229.86V
CL2 0.113A 19.732A 0A 0A 101.355 85.001% 0 <6.0 47.91°C 0.9
12.218V 5.066V 3.334V 5.054V 119.241 40.5°C 229.87V
CL3 0.113A 0A 19.878A 0A 67.398 80.031% 0 <6.0 49.3°C 0.85
12.217V 5.071V 3.321V 5.054V 84.215 40.04°C 229.87V
CL4 61.645A 0A 0A 0A 749.577 92.692% 1242 31.9 45.57°C 0.982
12.160V 5.068V 3.327V 5.017V 808.67 47.54°C 229.76V

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 1.214A 0.49A 0.492A 0.198A 19.993 71.708% 0 <6.0 43.49°C 0.897
12.225V 5.099V 3.356V 5.06V 27.882 36.05°C 114.9V
40W 2.672A 0.687A 0.689A 0.297A 39.994 82.209% 0 <6.0 45.02°C 0.916
12.232V 5.098V 3.355V 5.056V 48.649 37.14°C 114.89V
60W 4.132A 0.883A 0.885A 0.396A 59.993 86.846% 0 <6.0 46.63°C 0.936
12.230V 5.097V 3.354V 5.052V 69.079 38.13°C 114.9V
80W 5.586A 1.079A 1.083A 0.495A 79.932 88.545% 0 <6.0 48.12°C 0.95
12.227V 5.096V 3.352V 5.048V 90.274 39.04°C 114.89V

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 1.214A 0.49A 0.492A 0.198A 19.994 70.935% 0 <6.0 42.19°C 0.548
12.225V 5.099V 3.356V 5.059V 28.186 36.02°C 229.89V
40W 2.672A 0.686A 0.689A 0.297A 39.993 82.766% 0 <6.0 43.21°C 0.726
12.232V 5.098V 3.355V 5.055V 48.321 37.19°C 229.88V
60W 4.132A 0.883A 0.885A 0.396A 59.993 87.716% 0 <6.0 44.21°C 0.811
12.230V 5.097V 3.354V 5.052V 68.393 38.01°C 229.88V
80W 5.586A 1.079A 1.083A 0.495A 79.932 89.919% 0 <6.0 45.31°C 0.858
12.227V 5.096V 3.353V 5.048V 88.895 39.14°C 229.87V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load21.37mV13.90mV12.99mV12.12mVPass
20% Load28.68mV13.39mV13.05mV12.17mVPass
30% Load27.46mV13.23mV13.91mV11.81mVPass
40% Load27.81mV13.49mV13.15mV12.17mVPass
50% Load30.83mV13.69mV13.56mV12.38mVPass
60% Load31.91mV14.15mV13.97mV13.25mVPass
70% Load33.85mV14.81mV14.32mV13.45mVPass
80% Load35.80mV14.10mV14.27mV13.35mVPass
90% Load37.64mV14.56mV14.73mV13.40mVPass
100% Load56.30mV15.99mV16.64mV14.80mVPass
110% Load65.74mV16.97mV17.58mV15.60mVPass
Crossload140.42mV15.65mV18.51mV13.98mVPass
Crossload226.59mV17.88mV15.65mV13.20mVPass
Crossload323.52mV14.36mV20.46mV13.30mVPass
Crossload457.87mV14.50mV14.60mV13.12mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load22.29mV13.49mV13.10mV12.23mVPass
20% Load30.94mV13.03mV12.89mV12.02mVPass
30% Load30.48mV12.72mV12.74mV12.17mVPass
40% Load30.94mV13.39mV13.30mV12.12mVPass
50% Load33.49mV12.87mV13.04mV11.66mVPass
60% Load37.89mV13.18mV13.91mV12.28mVPass
70% Load36.82mV13.49mV14.07mV13.15mVPass
80% Load39.02mV13.13mV14.07mV12.38mVPass
90% Load40.96mV14.81mV15.81mV12.99mVPass
100% Load61.69mV15.26mV16.66mV15.23mVPass
110% Load71.50mV15.37mV18.22mV15.55mVPass
Crossload142.83mV16.03mV19.67mV15.03mVPass
Crossload231.45mV17.22mV14.73mV13.97mVPass
Crossload324.74mV13.64mV18.26mV13.25mVPass
Crossload461.02mV14.45mV15.25mV14.20mVPass

The results above are not used in the certification process

be quiet! Power Zone 2 750W

Top side
Power specifications label
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