CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Asus TUF-550B-GAMING (#2)
Serial Number
Lab IDAS55002085
  • Report: 22PS2085A
  • Receipt Date: Aug 25, 2022
  • Test Date: Nov 3, 2022
  • Report Date: Nov 4, 2022
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandAsus
Manufacturer (OEM)Great Wall
SeriesTUF Gaming
Model NumberTUF-550B-GAMING
Serial Number
DUT Notes

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)8-4
Rated Frequency (Hz)47-63
Rated Power (W)550
TypeATX12V
Cooling135mm Double Ball-Bearing Fan
(CF1325H12D)
Semi-Passive Operation✓
Cable DesignFixed cables

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps252045.830.8
Watts120549.6159.6
Total Max. Power (W)550

Test Equipment

Electronic Loads Chroma 63601-5 x4
Chroma 63600-2 x2
63640-80-80 x20
63610-80-20 x2
AC Sources Chroma 6530, Keysight AC6804B
Power Analyzers N4L PPA1530 x2
Sound Analyzer Bruel & Kjaer 2270 G4
Microphone Bruel & Kjaer Type 4955-A
Data Loggers Picoscope TC-08 x2, Labjack U3-HV x2
Tachometer UNI-T UT372 x2
Digital Multimeter Keysight U1273AX, Fluke 289, Keithley 2015 - THD
UPS CyberPower OLS3000E 3kVA x2
Transformer 3kVA x2
Testing Methodology Cybenetics PSU Test Protocol

Cables and Connectors

Captive Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (610mm) 1 1 18-20AWG No
4+4 pin EPS12V (820mm) 1 1 18AWG No
6+2 pin PCIe (610mm+100mm) 1 2 18AWG No
SATA (400mm+110mm+110mm) 1 3 18AWG No
SATA (410mm+110mm) 1 2 18AWG No
4-pin Molex (400mm+150mm+150mm+150mm) 1 4 18AWG No
Modular Cables
AC Power Cord (1390mm) - C13 coupler 1 1 18AWG -

Parts Description

General Data -
Manufacturer (OEM) Great Wall
PCB Type Single Sided
Primary Side -
Transient Filter 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush Protection NTC Thermistor 15S1R5M (1.5 Ohm)
Bridge Rectifier(s) 1x GBU15K (800V, 15A @ 100°C)
APFC MOSFETs 2x ROHM R6020ENX (600V, 20A, Rds(on): 0.196Ohm)
APFC Boost Diode 1x NXP BYC8B-600 (600V, 8A)
Bulk Cap(s) 1x Lelon (450V, 330uF, 2,000h @ 105°C, LSG)
Main Switchers 2x STMicroelectronics STF24N60DM2 (600V, 11A @ 100°C, Rds(on): 0.2Ohm)
APFC Controller Champion CM6500UNX & CM03AX
Resonant Controller Champion CM6901X
Topology Primary side: APFC, Half-Bridge & LLC converter
Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side -
+12V MOSFETs 4x Advanced Power AP9990GP (60V, 80A @ 100°C, Rds(on): 6mOhm)
5V & 3.3V DC-DC Converters
Filtering Capacitors Electrolytic: 7x Lelon (4-7,000h @ 105°C, RXW), 2x Teapo (3-6,000h @ 105°C, SY)
Polymer: 1x Elite, 5x Lelon, 2x no info
Supervisor IC IN1S429I - DCG
Fan Model Champion CF1325H12D (135mm, 12V, 0.6A, Double Ball Bearing)
5VSB Circuit -
Rectifier 1x PFC PFR30L45CT SBR (45V, 30A)
Standby PWM Controller Power Intergrations TNY278PN

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✓

Performance Summary

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)11.3
AC Loss to PWR_OK Hold Up Time (ms)7.8
PWR_OK Inactive to DC Loss Delay (ms)3.5

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 114.86 V 114.81 V 113.85 V 114.89 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 1.416 1.340 1.418 1.490 PASS
Mains Voltage THD: 0.15 % 0.12 % N/A 0.21 % 2.00 % PASS
Real Power: 0.054 W 0.002 W N/A 0.080 W N/A N/A
Apparent Power: 12.233 W 12.199 W N/A 12.280 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: 229.91 V 229.85 V 227.70 V 229.94 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: 0.13 % 0.11 % N/A 0.15 % 2.00 % PASS
Real Power: 0.117 W 0.083 W N/A 0.155 W N/A N/A
Apparent Power: 42.144 W 42.104 W N/A 42.179 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 0.23W 64.462% 0.033
5.112V 0.357W 114.88V
2 0.09A 0.46W 71.964% 0.059
5.112V 0.639W 114.87V
3 0.55A 2.807W 79.824% 0.246
5.106V 3.517W 114.88V
4 1A 5.098W 80.257% 0.325
5.099V 6.353W 114.88V
5 1.5A 7.637W 78.897% 0.373
5.092V 9.679W 114.88V
6 2.999A 15.19W 77.812% 0.433
5.065V 19.523W 114.87V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.23W 52.446% 0.012
5.112V 0.439W 229.95V
2 0.09A 0.46W 63.496% 0.02
5.112V 0.726W 229.95V
3 0.55A 2.807W 76.927% 0.097
5.105V 3.649W 229.95V
4 1A 5.098W 79.153% 0.159
5.099V 6.442W 229.95V
5 1.5A 7.637W 79.069% 0.213
5.092V 9.659W 229.95V
6 2.999A 15.195W 79.076% 0.311
5.067V 19.215W 229.95V

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% 2.758A 1.952A 1.981A 0.982A 54.985 84.165% 0 <6.0 39.44°C 0.953
12.105V 5.122V 3.332V 5.093V 65.329 35.43°C 114.84V
20% 6.535A 2.929A 2.973A 1.179A 109.91 87.93% 0 <6.0 39.99°C 0.978
12.091V 5.12V 3.33V 5.088V 124.996 35.74°C 114.83V
30% 10.667A 3.418A 3.47A 1.377A 164.896 89.031% 0 <6.0 40.62°C 0.986
12.080V 5.119V 3.328V 5.082V 185.209 35.87°C 114.81V
40% 14.827A 3.912A 3.969A 1.576A 219.968 88.161% 1277 30.4 36.37°C 0.989
12.057V 5.112V 3.325V 5.077V 249.507 41.42°C 114.8V
50% 18.650A 4.895A 4.966A 1.774A 274.953 88.029% 1227 29.3 37°C 0.991
12.036V 5.108V 3.322V 5.072V 312.343 42.42°C 114.79V
60% 22.475A 5.877A 5.964A 1.974A 329.938 87.619% 1329 31.6 37.69°C 0.992
12.019V 5.105V 3.32V 5.067V 376.563 43.7°C 114.77V
70% 26.311A 6.86A 6.963A 2.173A 384.934 86.863% 1428 33.7 38.09°C 0.993
12.004V 5.103V 3.318V 5.06V 443.146 45.14°C 114.76V
80% 30.137A 7.844A 7.959A 2.274A 439.349 86.025% 1597 36.7 38.12°C 0.994
11.994V 5.101V 3.315V 5.055V 510.72 46.16°C 114.73V
90% 34.383A 8.333A 8.445A 2.375A 494.311 85.2% 1680 38.3 38.36°C 0.994
11.978V 5.099V 3.314V 5.051V 580.18 47.44°C 114.72V
100% 38.427A 8.827A 8.963A 2.976A 549.506 84.205% 1787 40 39.03°C 0.995
11.966V 5.097V 3.312V 5.038V 652.59 49.11°C 114.7V
110% 42.351A 9.81A 10.054A 2.979A 604.507 82.601% 1892 41.5 40.07°C 0.99
11.953V 5.096V 3.31V 5.035V 731.86 51.01°C 114.69V
CL1 0.114A 14.098A 14.35A 0A 121.259 82.457% 0 <6.0 44.05°C 0.982
12.090V 5.121V 3.323V 5.093V 147.058 38.63°C 114.82V
CL2 0.113A 19.483A 0A 0A 101.373 81.471% 0 <6.0 42.96°C 0.979
12.116V 5.132V 3.325V 5.098V 124.431 35.86°C 114.83V
CL3 0.113A 0A 24.802A 0A 83.86 75.11% 0 <6.0 44.03°C 0.977
12.103V 5.131V 3.326V 5.088V 111.653 34.91°C 114.82V
CL4 45.813A 0A 0A 0.001A 549.314 85.196% 1802 40.2 38.46°C 0.995
11.990V 5.115V 3.321V 5.085V 644.764 49.37°C 114.71V

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% 2.758A 1.952A 1.981A 0.982A 54.99 85.635% 0 <6.0 39.71°C 0.768
12.107V 5.121V 3.331V 5.093V 64.213 35.65°C 229.89V
20% 6.535A 2.93A 2.973A 1.179A 109.921 89.695% 0 <6.0 39.98°C 0.895
12.092V 5.12V 3.329V 5.088V 122.549 35.74°C 229.88V
30% 10.667A 3.419A 3.47A 1.377A 164.89 90.802% 0 <6.0 40.89°C 0.937
12.079V 5.118V 3.328V 5.083V 181.593 36.16°C 229.88V
40% 14.833A 3.913A 3.97A 1.575A 219.961 90.347% 1197 28.6 37.04°C 0.957
12.052V 5.111V 3.324V 5.078V 243.463 42.05°C 229.87V
50% 18.662A 4.897A 4.967A 1.774A 274.937 90.388% 1146 27.2 37.55°C 0.967
12.027V 5.105V 3.321V 5.074V 304.171 43.07°C 229.86V
60% 22.478A 5.879A 5.965A 1.973A 329.924 90.034% 1302 31 38.46°C 0.974
12.017V 5.103V 3.319V 5.068V 366.44 44.55°C 229.85V
70% 26.305A 6.861A 6.963A 2.172A 384.907 89.474% 1435 33.9 38.6°C 0.979
12.006V 5.102V 3.317V 5.062V 430.191 45.8°C 229.85V
80% 30.137A 7.845A 7.959A 2.273A 439.222 88.844% 1530 35.7 38.88°C 0.982
11.990V 5.1V 3.315V 5.058V 494.376 46.93°C 229.84V
90% 34.373A 8.333A 8.446A 2.374A 494.251 88.167% 1681 38.3 39.28°C 0.984
11.980V 5.098V 3.314V 5.053V 560.588 48.32°C 229.83V
100% 38.398A 8.823A 8.962A 2.975A 549.453 87.439% 1832 40.7 39.34°C 0.986
11.974V 5.099V 3.312V 5.04V 628.386 49.43°C 229.83V
110% 42.355A 9.811A 10.057A 2.978A 604.52 86.507% 1892 41.5 40.15°C 0.988
11.953V 5.095V 3.31V 5.036V 698.814 51.13°C 229.82V
CL1 0.114A 14.09A 14.349A 0A 121.264 83.837% 0 <6.0 41.74°C 0.916
12.095V 5.124V 3.323V 5.093V 144.642 36.25°C 229.88V
CL2 0.113A 19.486A 0A 0A 101.375 83.057% 0 <6.0 43.23°C 0.896
12.116V 5.132V 3.326V 5.099V 122.056 36.19°C 229.88V
CL3 0.114A 0A 24.798A 0A 83.861 76.532% 0 <6.0 45.3°C 0.88
12.104V 5.13V 3.326V 5.089V 109.577 36.19°C 229.88V
CL4 45.835A 0A 0A 0.001A 549.347 88.438% 1803 40.2 37.69°C 0.986
11.985V 5.109V 3.321V 5.089V 621.16 48.67°C 229.83V

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 0.488A 0.495A 0.196A 19.985 73.95% 0 <6.0 36.25°C 0.864
12.110V 5.121V 3.333V 5.108V 27.025 33.2°C 114.85V
40W 2.698A 0.683A 0.693A 0.294A 39.985 82.785% 0 <6.0 36.58°C 0.931
12.108V 5.122V 3.333V 5.106V 48.3 33.24°C 114.84V
60W 4.174A 0.878A 0.891A 0.392A 59.984 85.909% 0 <6.0 37.83°C 0.956
12.103V 5.122V 3.332V 5.103V 69.824 34.05°C 114.84V
80W 5.645A 1.074A 1.089A 0.49A 79.923 87.472% 0 <6.0 38.7°C 0.968
12.098V 5.121V 3.332V 5.101V 91.37 34.72°C 114.83V

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 1.225A 0.488A 0.495A 0.196A 19.986 75.083% 0 <6.0 36.02°C 0.488
12.108V 5.122V 3.333V 5.108V 26.618 32.94°C 229.9V
40W 2.699A 0.683A 0.693A 0.294A 39.987 83.954% 0 <6.0 36.88°C 0.682
12.107V 5.121V 3.332V 5.106V 47.632 33.61°C 229.89V
60W 4.174A 0.879A 0.891A 0.392A 59.987 87.404% 0 <6.0 37.65°C 0.785
12.102V 5.121V 3.331V 5.103V 68.632 34.14°C 229.89V
80W 5.645A 1.074A 1.09A 0.49A 79.938 89.058% 0 <6.0 37.31°C 0.844
12.100V 5.121V 3.331V 5.101V 89.757 33.46°C 229.89V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load52.99mV11.08mV8.95mV40.07mVPass
20% Load30.51mV8.33mV8.80mV12.50mVPass
30% Load24.38mV9.81mV8.95mV17.20mVPass
40% Load44.99mV11.43mV9.81mV36.74mVPass
50% Load40.91mV13.47mV10.72mV42.10mVPass
60% Load35.95mV14.18mV10.36mV37.70mVPass
70% Load41.16mV13.62mV10.92mV40.03mVPass
80% Load20.86mV13.21mV12.69mV22.97mVPass
90% Load38.98mV15.30mV13.04mV44.43mVPass
100% Load33.27mV19.62mV15.68mV31.93mVPass
110% Load38.78mV18.51mV16.13mV32.52mVPass
Crossload133.52mV16.16mV15.58mV14.06mVPass
Crossload227.83mV12.91mV8.90mV11.74mVPass
Crossload344.69mV10.42mV16.83mV34.86mVPass
Crossload432.53mV15.58mV12.07mV25.17mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load45.44mV9.96mV8.24mV41.44mVPass
20% Load33.09mV8.79mV9.35mV37.75mVPass
30% Load25.75mV10.01mV8.69mV16.55mVPass
40% Load35.69mV14.54mV9.45mV44.02mVPass
50% Load25.14mV12.45mV9.96mV18.37mVPass
60% Load43.22mV14.02mV10.62mV42.51mVPass
70% Load30.38mV12.96mV11.17mV34.10mVPass
80% Load30.99mV13.97mV13.85mV37.19mVPass
90% Load21.77mV14.64mV12.23mV22.57mVPass
100% Load34.15mV18.01mV15.12mV30.34mVPass
110% Load38.75mV19.33mV15.96mV33.45mVPass
Crossload133.82mV14.46mV15.06mV13.90mVPass
Crossload229.60mV13.47mV8.75mV10.98mVPass
Crossload330.71mV8.79mV18.30mV11.44mVPass
Crossload433.91mV15.70mV11.99mV23.49mVPass

The results above are not used in the certification process

Asus TUF-550B-GAMING (#2)

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