CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Version:00
ASUS TUF Gaming 850W Gold EVO
Serial Number2Q024144894
Lab IDAS85003254
Certification ID263254
  • Test Result Report ID: 26PS3254A
  • Certificate Issue Date: Apr 27, 2026
115V230V
Scheme: ETA-EMI PSU
115V230V
Scheme: LAMBDA PSU
Outside Validation Scope
Aristeidis Bitziopoulos, Certification Body General Manager

General Information

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

DUT Information(Non-accredited measurements)

Product Identification Details
BrandASUS
ModelTUF Gaming 850W Gold EVO
OEM/ODMGreat Wall
Serial Number2Q024144894
Product Specifications
Manufacturer-Provided Information
Rated Voltage (Vrms)100-240
Rated Current (Arms)6-10
Rated Frequency (Hz)47-63
Rated Power (W)850
Operating Temperature (Continuous Full Load) (°C)0 - 40
TypeATX12V
Cable DesignFully Modular
Warranty8 years
Cybenetics Measurements
Dimensions (W x H x D)150 x 85 x 140mm
Weight1.34 kg (2.95 lb)
Cooling135mm Ball Bearing Fan (HA13525M12B-Z)
Semi-Passive Operation✗
Cybenetics Testing Information
Lab IDAS85003254
Date of receiptMar 26, 2026
Testing DateApr 17, 2026
Report Issued DateApr 27, 2026
Engineer NameIoannis Kalyviotis
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 (500mm) 1 1 18AWG Tinned Copper
4+4 pin EPS12V (650mm+100mm) 1 2 18AWG Tinned Copper
6+2 pin PCIe (500mm) 1 1 18AWG Tinned Copper
2x 6+2 pin PCIe (500mm) 2 2 18AWG Tinned Copper
12+4 pin PCIe (500mm) (600W) 1 1 16-24AWG Tinned Copper
SATA (400mm+115mm) / 4-pin Molex (+115mm) 2 4 / 2 18AWG Tinned Copper

Protection Features(Manufacturer)

Over Power Protection✓
Over Current (+12V) Protection✓
Over Temperature Protection✓
Short Circuit Protection✓
Surge Protection✓
Inrush Current Protection✓
Fan Failure Protection✗

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps202070.8330.3
Watts110850153.6
Total Max. Power (W)850

Parts Description

General Data
Manufacturer (OEM) Great Wall
PCB Type Double-Sided
Primary Side
Transient Filter 4x Y caps, 3x X caps, 2x CM chokes, 1x MOV
Inrush Protection 1x NTC Thermistor SCK-056 (5 Ohm @ 20°C) & Relay
Bridge Rectifier 1x LRC GBU25M (1000V, 25A @ 100°C)
APFC MOSFETs 1x Infineon IPW60R060C7 (650V, 10A @ 100°C, Rds(on): 0.060 Ohm)
APFC Boost Diode 1x Wolfspeed C6D10065A (650V, 10A @ 155°C)
Bulk Cap(s) 1x Elite (450V, 560uF, 2,000h @ 105°C, PL )
Main Switchers 2x ST STF33N60DM2 (600V, 15.5A @ 100°C, Rds(on): 0.130 Ohm)
PFC/PWM Combo Controller

MPS HR1280

Topology Primary side: APFC, Half-Bridge & LLC converter
Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side
+12V MOSFETs 4x ONSEMI NTMFS5C430NL (40V, 140A @ 100°C, Rds(on): 1.4 mOhm)
5V & 3.3V DC-DC Converters: 4x AP4024GEMT-HF (30V, 60A @ 25°C, Rds(on): 4.5 mOhm)
PWM Controller(s): ANPEC APW7159C
Filtering Capacitors

Electrolytic:
4x Elite (5000 @ 105°C, EJ )
1x Elite (4000 @ 105°C, EK )
2x Elite (4000 @ 105°C, ED )
Polymer:
8x Nichicon FPCAP, 3x Elite

Supervisor IC NDP NDP5201KC
Fan Controller BCD AS358M
Fan Model HongHua HA13525M12B-Z (135mm, 12V, 0.36A, Dual Ball Bearing Fan)
5VSB Circuit
Rectifier DIODES SDT8A60VP5 (60V,8A)
Standby PWM Controller Lendtrend LD5537E1

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

Accredited
Average Efficiency (>1450 load combinations)88.476%
Average Noise Output (>1450 Load Combinations)29.37dBA
Average PF (>1450 Load Combinations)0.978
Efficiency With 10W (≤500W) or 2% (>500W) Load75.694%
Standby Power Consumption0.0460W
Non-Accredited
12V Ripple (Full Load)55.54mV
5V Ripple (Full Load)34.28mV
3.3V Ripple (Full Load)31.24mV
5VSB Ripple (Full Load)20.73mV
12V Load Regulation1.64%
5V Load Regulation0.95%
3.3V Load Regulation3.29%
5VSB Load Regulation3.27%
Inrush Current28.830A
Accredited
Average Efficiency (>1450 load combinations)91.248%
Average Noise Output (>1450 Load Combinations)28.21dBA
Average PF (>1450 Load Combinations)0.972
Efficiency With 10W (≤500W) or 2% (>500W) Load78.022%
Standby Power Consumption0.1378W
Non-Accredited
12V Ripple (Full Load)55.95mV
5V Ripple (Full Load)33.77mV
3.3V Ripple (Full Load)29.91mV
5VSB Ripple (Full Load)19.50mV
12V Load Regulation1.72%
5V Load Regulation1.99%
3.3V Load Regulation3.46%
5VSB Load Regulation3.37%
Inrush Current74.710A
12V Transient Response (200%)11.33V
5V Transient Response (200%)4.946V
3.3V Transient Response (200%)3.139V
5VSB Transient Response (200%)5.045V
Hold-Up Time & PWR_OK Signal18.40ms
AC Loss to PWR_OK Hold Up Time16.80ms
PWR_OK Inactive to DC Loss Delay1.60ms
PSU Timings: T1 (20% / 100%)66.0ms60.0ms
PSU Timings: T3 (20% / 100%)125.0ms126.0ms
12V OCP (28.7°C / 42.9°C)89.60A (126.50%), 11.947V87.60A (123.68%), 11.944V
5V OCP (28.7°C / 42.9°C)28.5A (142.50%), 5.093V *High Ripple (55.32mV)27.6A (138.00%), 5.097V *High Ripple (54.66mV)
3.3V OCP (28.7°C / 42.9°C)27.9A (139.50%), 3.268V27.5A (137.50%), 3.269V
5VSB OCP (28.7°C / 42.9°C)4.2A (140.00%), 5.074V4.2A (140.00%), 5.073V
OPP (27.21°C / 41.93°C)123.96%120.79%

Hold-Up Time & PWR_OK Signal

Hold-Up Time (ms)18.4
AC Loss to PWR_OK Hold Up Time (ms)16.8
PWR_OK Inactive to DC Loss Delay (ms)1.6

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.03 V 115.02 V 113.85 V 115.06 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.95 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 % 0.11 % N/A 0.15 % 2.00 % PASS
Real Power: 0.046 W 0.014 W N/A 0.077 W N/A N/A
Apparent Power: 13.582 W 13.540 W N/A 13.619 W N/A N/A
Power Factor: 0.003 N/A N/A N/A N/A N/A
Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 230.11 V 230.08 V 227.70 V 230.12 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: 0.138 W 0.101 W N/A 0.191 W N/A N/A
Apparent Power: 44.953 W 44.920 W N/A 44.987 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 EN 55032 & 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 0.234W 66.344% 0.026
5.189V 0.353W 114.88V
2 0.09A 0.467W 73.194% 0.046
5.188V 0.638W 114.89V
3 0.55A 2.847W 80.719% 0.22
5.176V 3.527W 114.88V
4 1A 5.164W 80.825% 0.324
5.164V 6.389W 114.88V
5 1.5A 7.726W 80.54% 0.386
5.15V 9.593W 114.88V
6 3A 15.331W 78.115% 0.477
5.11V 19.628W 114.88V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.234W 54.453% 0.009
5.191V 0.43W 229.88V
2 0.09A 0.467W 66.85% 0.015
5.188V 0.7W 229.88V
3 0.55A 2.847W 78.914% 0.075
5.176V 3.608W 229.88V
4 1A 5.164W 79.851% 0.129
5.163V 6.467W 229.9V
5 1.5A 7.726W 80.353% 0.18
5.15V 9.617W 229.9V
6 3A 15.331W 79.721% 0.293
5.11V 19.232W 229.89V

Protection Features

OCP (Normal @ 28.7°C)12V: 89.60A (126.50%), 11.947V
5V: 28.5A (142.50%), 5.093V *High Ripple (55.32mV)
3.3V: 27.9A (139.50%), 3.268V
5VSB: 4.2A (140.00%), 5.074V
OCP (Hot @ 42.9°C)12V: 87.60A (123.68%), 11.944V
5V: 27.6A (138.00%), 5.097V *High Ripple (54.66mV)
3.3V: 27.5A (137.50%), 3.269V
5VSB: 4.2A (140.00%), 5.073V
OPP (Normal @ 27.2°C)1053.67W (123.96%)
OPP (Hot @ 41.9°C)1026.69W (120.79%)
OTP✓ (110°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% 5.208A 1.955A 1.992A 0.97A 85.007 86.421% 364 <6.0 40.42°C 0.908
12.176V 5.115V 3.313V 5.155V 98.346 46.96°C 114.86V
20% 11.438A 2.938A 2.998A 1.167A 169.944 89.621% 391 <6.0 40.98°C 0.951
12.156V 5.105V 3.302V 5.141V 189.461 51.01°C 114.73V
30% 18.036A 3.434A 3.508A 1.365A 254.952 90.163% 453 8.2 41.21°C 0.959
12.137V 5.097V 3.293V 5.128V 279.158 55.76°C 113.5V
40% 24.662A 3.931A 4.02A 1.565A 340.039 90.864% 582 15 41.84°C 0.985
12.117V 5.088V 3.283V 5.114V 374.239 59.22°C 114.77V
50% 30.942A 4.923A 5.042A 1.765A 424.838 90.676% 699 21.2 42.03°C 0.994
12.098V 5.078V 3.273V 5.099V 468.558 61.24°C 114.73V
60% 37.222A 5.92A 6.072A 1.967A 509.374 90.107% 886 28.7 42.96°C 0.996
12.078V 5.068V 3.261V 5.085V 564.781 64.41°C 114.62V
70% 43.592A 6.921A 7.108A 2.17A 594.694 89.249% 1046 43.2 43.31°C 0.998
12.057V 5.058V 3.25V 5.07V 666.356 65.7°C 114.68V
80% 49.984A 7.925A 8.15A 2.274A 679.514 88.298% 1172 37.7 43.87°C 0.998
12.036V 5.047V 3.239V 5.057V 769.603 66.53°C 114.63V
90% 56.805A 8.436A 8.671A 2.379A 764.938 87.288% 1387 41.7 44.18°C 0.998
12.014V 5.037V 3.229V 5.046V 876.326 69.24°C 114.61V
100% 63.385A 8.95A 9.227A 2.989A 849.753 86.155% 1546 45.9 45.22°C 0.998
11.991V 5.028V 3.218V 5.019V 984.573 71.86°C 114.4V
110% 69.863A 9.966A 10.384A 2.995A 934.326 84.974% 1680 46.4 46.41°C 0.999
11.967V 5.017V 3.206V 5.009V 1099.451 75.17°C 114.53V
CL1 0.115A 13.004A 13.323A 0A 111.296 82.21% 710 21.4 40.23°C 0.929
12.171V 5.091V 3.28V 5.166V 135.382 56.96°C 114.84V
CL2 0.114A 19.574A 0A 0A 101.354 81.055% 549 13.4 40.89°C 0.924
12.179V 5.107V 3.295V 5.172V 125.069 53.39°C 114.85V
CL3 0.114A 0A 20.062A 0A 67.38 75.827% 492 9.7 40.73°C 0.903
12.179V 5.095V 3.289V 5.172V 88.853 51.46°C 114.86V
CL4 70.864A 0A 0A 0A 849.487 87.136% 1465 43.4 45.03°C 0.998
11.988V 5.052V 3.248V 5.114V 974.885 69.09°C 114.57V

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% 5.208A 1.955A 1.993A 0.97A 85.01 88.352% 336 <6.0 40.46°C 0.871
12.173V 5.114V 3.311V 5.154V 96.215 43.16°C 229.87V
20% 11.442A 2.939A 3A 1.168A 169.957 92.404% 360 <6.0 40.61°C 0.956
12.153V 5.104V 3.3V 5.14V 183.94 44.82°C 229.86V
30% 18.041A 3.435A 3.51A 1.366A 254.969 93.267% 417 6.6 41.17°C 0.977
12.134V 5.095V 3.29V 5.126V 273.363 47.41°C 229.85V
40% 24.671A 3.933A 4.024A 1.565A 340.064 93.342% 542 13.1 41.62°C 0.985
12.114V 5.086V 3.281V 5.112V 364.321 49.63°C 229.84V
50% 30.959A 4.926A 5.047A 1.766A 424.896 93.058% 692 20.9 42.14°C 0.99
12.093V 5.076V 3.27V 5.097V 456.575 51.09°C 229.82V
60% 37.246A 5.924A 6.079A 1.969A 509.43 92.646% 818 26.2 42.89°C 0.993
12.072V 5.065V 3.258V 5.081V 549.887 51.69°C 229.8V
70% 43.621A 6.927A 7.119A 2.172A 594.75 92.115% 962 31.1 43.42°C 0.995
12.050V 5.054V 3.245V 5.065V 645.669 52.1°C 229.79V
80% 50.022A 7.932A 8.164A 2.277A 679.574 91.429% 1203 37.9 43.85°C 0.996
12.028V 5.042V 3.233V 5.052V 743.289 54.69°C 229.78V
90% 56.855A 8.445A 8.688A 2.381A 765 90.769% 1401 42 44.62°C 0.997
12.004V 5.033V 3.223V 5.04V 842.852 56.15°C 229.76V
100% 63.447A 8.96A 9.248A 2.993A 849.817 90.011% 1558 46.5 45.89°C 0.997
11.981V 5.022V 3.211V 5.013V 944.104 58.29°C 229.75V
110% 69.952A 9.979A 10.412A 3A 934.411 89.159% 1693 46.7 46.13°C 0.997
11.953V 5.01V 3.198V 5.001V 1048.042 60.92°C 229.73V
CL1 0.116A 13.009A 13.345A 0A 111.305 84.535% 726 22.3 40.04°C 0.921
12.166V 5.089V 3.274V 5.164V 131.662 53.45°C 229.87V
CL2 0.115A 19.58A 0A 0A 101.362 83.17% 591 15.6 41.28°C 0.911
12.174V 5.105V 3.293V 5.171V 121.872 52.07°C 229.87V
CL3 0.114A 0A 20.107A 0A 67.384 77.159% 508 11.2 40.62°C 0.85
12.175V 5.093V 3.282V 5.171V 87.32 50.4°C 229.88V
CL4 70.931A 0A 0A 0A 849.561 90.829% 1476 43.3 45.24°C 0.997
11.978V 5.047V 3.244V 5.11V 935.374 54.91°C 229.75V

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 1.219A 0.488A 0.496A 0.193A 20.007 71.581% 356 <6.0 36.68°C 0.754
12.188V 5.126V 3.324V 5.183V 27.984 45.41°C 114.86V
40W 2.683A 0.683A 0.696A 0.29A 40.004 83.164% 333 <6.0 37.63°C 0.841
12.185V 5.123V 3.321V 5.179V 48.122 44.33°C 114.86V
60W 4.148A 0.879A 0.895A 0.387A 60.003 85.62% 343 <6.0 38.53°C 0.88
12.181V 5.121V 3.319V 5.174V 70.1 45.23°C 114.86V
80W 5.610A 1.074A 1.095A 0.484A 79.946 86.748% 359 <6.0 39.58°C 0.904
12.176V 5.118V 3.316V 5.17V 92.166 46.13°C 114.86V

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 1.218A 0.488A 0.497A 0.193A 20.003 78.995% 323 <6.0 36.53°C 0.408
12.187V 5.122V 3.322V 5.182V 25.402 38.41°C 229.89V
40W 2.684A 0.684A 0.696A 0.29A 40.004 84.045% 326 <6.0 37.66°C 0.58
12.183V 5.121V 3.319V 5.178V 47.64 39.18°C 229.89V
60W 4.150A 0.879A 0.895A 0.387A 60.004 86.943% 328 <6.0 38.95°C 0.786
12.178V 5.118V 3.317V 5.173V 69.016 39.25°C 229.88V
80W 5.612A 1.075A 1.095A 0.484A 79.952 88.58% 328 <6.0 39.32°C 0.856
12.174V 5.116V 3.315V 5.169V 90.266 40.74°C 229.88V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load24.11mV29.36mV23.65mV16.93mVPass
20% Load27.62mV32.64mV25.70mV18.83mVPass
30% Load41.94mV35.16mV27.96mV21.14mVPass
40% Load37.59mV34.39mV27.91mV22.01mVPass
50% Load37.39mV35.25mV27.45mV19.34mVPass
60% Load40.20mV36.03mV28.27mV19.24mVPass
70% Load45.52mV30.85mV26.94mV18.73mVPass
80% Load47.11mV31.97mV28.68mV21.34mVPass
90% Load52.53mV32.69mV29.40mV20.06mVPass
100% Load55.54mV34.28mV31.24mV20.73mVPass
110% Load63.37mV37.82mV33.50mV22.63mVPass
Crossload130.28mV36.70mV32.94mV19.09mVPass
Crossload246.85mV45.98mV27.75mV18.73mVPass
Crossload338.41mV26.12mV34.12mV19.19mVPass
Crossload456.82mV31.87mV28.17mV19.70mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load31.15mV27.56mV22.16mV15.91mVPass
20% Load33.80mV29.25mV22.21mV18.88mVPass
30% Load36.24mV29.30mV21.85mV15.75mVPass
40% Load39.02mV29.82mV23.14mV14.98mVPass
50% Load36.31mV32.13mV23.91mV16.47mVPass
60% Load39.23mV34.13mV25.96mV18.11mVPass
70% Load40.81mV29.15mV25.86mV16.68mVPass
80% Load43.27mV30.79mV26.58mV19.75mVPass
90% Load48.69mV30.38mV28.47mV18.88mVPass
100% Load55.95mV33.77mV29.91mV19.50mVPass
110% Load63.98mV35.98mV32.68mV20.58mVPass
Crossload126.29mV31.46mV28.78mV16.06mVPass
Crossload238.46mV41.93mV24.32mV15.80mVPass
Crossload336.93mV24.02mV31.71mV16.62mVPass
Crossload455.39mV28.43mV26.11mV19.39mVPass

The results above are not used in the certification process

ASUS TUF Gaming 850W Gold EVO

Top side
Power specifications label
Fan
PSU Internals
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 runs voluntary certification programs for power supplies - ETA for efficiency, LAMBDA for noise and SAFE for safety and correct operation - and for cooling products, with DELTA for chassis soundproofing and PHI for fan airflow and static pressure
CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
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