CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
ASRock Steel Legend SL-850G / SL-850GW
Serial Number
Lab IDAR85002548
  • Report: 24PS2548A
  • Receipt Date: Aug 9, 2024
  • Test Date: Aug 24, 2024
  • Report Date: Aug 24, 2024
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Lab Director

General Information

DUT Information

BrandASRock
Manufacturer (OEM)HEC
SeriesSteel Legend
Model NumberSL-850G / SL-850GW
Serial Number
DUT NotesThe result apply to both the black and white models.

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)5-10
Rated Frequency (Hz)50-60
Rated Power (W)850
TypeATX12V
Cooling135mm Fluid Dynamic Bearing Fan (S1352512EH-3M)
Semi-Passive Operation✓ (selectable)
Cable DesignFully Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps202070.930.3
Watts120850153.6
Total Max. Power (W)850

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 (600mm) 1 1 18AWG No
4+4 pin EPS12V (640mm) 2 2 18AWG No
6+2 pin PCIe (590mm+140mm) 2 4 18AWG No
6+2 pin PCIe (590mm) 1 1 18AWG No
12+4 pin PCIe (645mm) (600W) 1 1 16-24AWG No
SATA (450mm+120mm+120mm) 3 9 18AWG No
4-pin Molex (440mm+110mm+110mm) 1 3 18AWG No

Parts Description

General Data
Manufacturer (OEM) HEC
PCB Type Double-Sided
Primary Side
Transient Filter 4x Y caps, 3x X caps, 2x CM chokes, 1x MOV, 1x Power Integrations CAP200DG (X capacitor Discharge IC)
Inrush Protection 1x NTC Thermistor 5D-15 (5 Ohm @25°C) & Relay
Bridge Rectifier(s)

2x GBU15K (800V, 15A)
APFC MOSFETs

2x Infineon IPA60R099P7 (650V, 20A @ 100°C, Rds(on): 0.099Ohm)
APFC Boost Diode

1x CREE C6D10065A (650V, 10A @ 155°C)
Bulk Cap(s)

1x Nippon Chemi-Con (400V, 560uF, 2000h @ 105°C, KMR)
Main Switchers

2x Infineon IPA60R120P7 (650V, 16A @ 100°C, Rds(on): 0.120Ohm)
APFC Controller

1x Champion CM6500UNX & 1x Champion CM03X
Resonant Controller

1x Champion CM6901T6X
Topology

Primary side: APFC, Half-Bridge & LLC Resonant converter Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side
+12V MOSFETs No info
5V & 3.3V DC-DC Converters: 2x Potens PDC39F2BX (30V, 76A @ 100°C, Rds(on): 2.95mOhm) PWM Controller(s): 1x ANPEC APW7159C
Filtering Capacitors

Electrolytic: 2x Nippon Chemi-con (2-5,000 @ 105°C, KZE) 2x Rubycon (2-10,000 @ 105°C, YXF), 2x Rubycon (3-6,000 @ 105°C, YXG), 1x Rubycon (4-10,000 @ 105°C, YXJ), 3x Rubycon (6-10,000 @ 105°C, ZLH), 1x Rubycon (6-10,000 @ 105°C, YXH) Polymer: 31x Nippon Chemi-con
Supervisor IC Weltrend WT7527RT (OCP, OVP, UVP, SCP, PG)
Fan Model Nuvoton MS51FBAE
Fan Model RL4Z S1352512EH-3M (135mm, 12V, 0.50A, Fluid Dynamic Bearing Fan)
5VSB/12VSB Circuit
Rectifier 1x PXY PS1060L (60V, 10A)
Standby PWM Controller Excelliance MOS EM85690

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)89.823%
Average Noise Output (>1450 Load Combinations)18.27dBA
Average PF (>1450 Load Combinations)0.982
Efficiency With 10W (≤500W) or 2% (>500W) Load70.773%
Standby Power Consumption0.0556W
12V Ripple (Full Load)44.38mV
5V Ripple (Full Load)16.97mV
3.3V Ripple (Full Load)17.24mV
5VSB Ripple (Full Load)18.29mV
12V Load Regulation0.36%
5V Load Regulation0.42%
3.3V Load Regulation0.74%
5VSB Load Regulation2.33%
Inrush Current24.010A
Efficiency RatingPLATINUM
Noise RatingA+
Average Efficiency (>1450 load combinations)91.931%
Average Noise Output (>1450 Load Combinations)17.54dBA
Average PF (>1450 Load Combinations)0.944
Efficiency With 10W (≤500W) or 2% (>500W) Load0.000%
Standby Power Consumption0.1105W
12V Ripple (Full Load)46.46mV
5V Ripple (Full Load)17.19mV
3.3V Ripple (Full Load)16.66mV
5VSB Ripple (Full Load)17.94mV
12V Load Regulation0.41%
5V Load Regulation0.46%
3.3V Load Regulation0.74%
5VSB Load Regulation2.37%
Inrush Current61.710A
12V Transient Response (200%)11.48V
5V Transient Response (200%)4.979V
3.3V Transient Response (200%)3.152V
5VSB Transient Response (200%)4.960V
Hold-Up Time & Power Ok Signal18.20ms
AC Loss to PWR_OK Hold Up Time15.70ms
PWR_OK Inactive to DC Loss Delay2.50ms
PSU Timings: T1 (20% / 100%)53.0ms53.0ms
PSU Timings: T3 (20% / 100%)123.0ms123.0ms
12V OCP (29.0°C / 41.4°C)85.60A (120.73%), 12.139V84.20A (118.76%), 12.155V
5V OCP (29.0°C / 41.4°C)31A (155.00%), 5.049V30.4A (152.00%), 5.05V
3.3V OCP (29.0°C / 41.4°C)30.1A (150.50%), 3.243V29.4A (147.00%), 3.243V
5VSB OCP (29.0°C / 41.4°C)4.1A (136.67%), 5.051V4A (133.33%), 5.055V
OPP (27.93°C / 44.99°C)123.84%121.73%

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)18.2
AC Loss to PWR_OK Hold Up Time (ms)15.7
PWR_OK Inactive to DC Loss Delay (ms)2.5

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.09 V 115.05 V 113.85 V 115.13 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.94 Hz 59.40 Hz 60.02 Hz 60.60 Hz PASS
Mains Voltage CF: 1.416 1.415 1.340 1.418 1.490 PASS
Mains Voltage THD: 0.13 % 0.08 % N/A 0.19 % 2.00 % PASS
Real Power: 0.056 W -0.004 W N/A 0.090 W N/A N/A
Apparent Power: 9.964 W 9.903 W N/A 10.028 W N/A N/A
Power Factor: 0.005 N/A N/A N/A N/A N/A
Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 231.05 V 230.95 V 227.70 V 231.11 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 1.417 1.340 1.419 1.490 PASS
Mains Voltage THD: 0.17 % 0.15 % N/A 0.26 % 2.00 % PASS
Real Power: 0.110 W 0.065 W N/A 0.167 W N/A N/A
Apparent Power: 34.258 W 34.005 W N/A 34.501 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

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 0.231W 67.299% 0.033
5.136V 0.343W 114.92V
2 0.09A 0.462W 74.31% 0.06
5.134V 0.622W 114.92V
3 0.55A 2.818W 81.257% 0.264
5.125V 3.468W 114.92V
4 1A 5.115W 81.61% 0.349
5.115V 6.267W 114.91V
5 1.5A 7.659W 81.599% 0.412
5.105V 9.386W 114.92V
6 3A 15.222W 80.212% 0.487
5.075V 18.977W 114.9V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.231W 56.659% 0.012
5.136V 0.409W 229.9V
2 0.09A 0.462W 65.987% 0.02
5.135V 0.701W 229.91V
3 0.55A 2.818W 79.548% 0.098
5.125V 3.543W 229.88V
4 1A 5.115W 80.663% 0.164
5.116V 6.342W 229.89V
5 1.5A 7.658W 81.118% 0.204
5.106V 9.439W 229.88V
6 2.999A 15.223W 81.043% 0.318
5.076V 18.783W 229.89V

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% 5.199A 1.971A 2.02A 0.978A 85.005 88.285% 0 <6.0 48.94°C 0.968
12.195V 5.074V 3.267V 5.114V 96.283 40.45°C 114.89V
20% 11.406A 2.957A 3.033A 1.176A 169.951 91.063% 0 <6.0 48.18°C 0.973
12.191V 5.072V 3.265V 5.104V 186.631 40.54°C 114.86V
30% 17.963A 3.452A 3.54A 1.374A 254.962 91.847% 0 <6.0 51.42°C 0.974
12.186V 5.071V 3.263V 5.095V 277.593 41.26°C 114.83V
40% 24.529A 3.946A 4.048A 1.573A 340.055 91.888% 0 <6.0 52.66°C 0.979
12.183V 5.069V 3.261V 5.085V 370.073 41.84°C 114.81V
50% 30.742A 4.935A 5.065A 1.774A 424.906 91.482% 447 <6.0 42.15°C 0.983
12.179V 5.066V 3.258V 5.075V 464.468 50.44°C 114.77V
60% 36.934A 5.925A 6.083A 1.975A 509.433 90.957% 861 19 42.81°C 0.987
12.174V 5.064V 3.255V 5.064V 560.081 49.79°C 114.74V
70% 43.199A 6.917A 7.103A 2.177A 594.73 90.356% 962 22.1 43.26°C 0.989
12.167V 5.061V 3.253V 5.054V 658.211 50.3°C 114.71V
80% 49.471A 7.907A 8.124A 2.28A 679.573 89.611% 1133 25 43.63°C 0.991
12.162V 5.058V 3.25V 5.045V 758.359 51.19°C 114.67V
90% 56.141A 8.404A 8.621A 2.383A 765.007 88.855% 1428 34.9 44.06°C 0.993
12.157V 5.056V 3.248V 5.037V 860.963 51.85°C 114.64V
100% 62.551A 8.901A 9.15A 2.989A 849.807 87.98% 1679 39.5 45.47°C 0.994
12.152V 5.055V 3.246V 5.018V 965.912 53.04°C 114.6V
110% 68.834A 9.896A 10.268A 2.993A 934.374 87.02% 1925 44.3 46.68°C 0.995
12.147V 5.052V 3.243V 5.011V 1073.751 54.96°C 114.56V
CL1 0.115A 14.276A 14.69A 0A 121.301 84.436% 1179 29.3 40.35°C 0.978
12.200V 5.057V 3.247V 5.125V 143.657 47.39°C 114.87V
CL2 0.115A 19.762A 0A 0A 101.362 83.426% 1177 29.3 40.5°C 0.974
12.200V 5.059V 3.26V 5.13V 121.499 45.46°C 114.87V
CL3 0.114A 0A 20.316A 0A 67.399 78.796% 640 7.6 40.15°C 0.965
12.198V 5.069V 3.249V 5.13V 85.538 45.41°C 114.89V
CL4 69.903A 0A 0A 0A 849.57 88.803% 1475 36.2 45.21°C 0.994
12.154V 5.067V 3.26V 5.089V 956.699 51.21°C 114.61V

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% 5.280A 2A 2A 1A 86.223 89.795% 0 <6.0 48.02°C 0.835
12.201V 5.074V 3.267V 5.115V 96.023 40.26°C 229.88V
20% 11.600A 3A 3A 1.2A 172.614 92.514% 0 <6.0 48.81°C 0.917
12.196V 5.072V 3.265V 5.104V 186.582 40.73°C 229.87V
30% 18.242A 3.5A 3.5A 1.4A 258.688 93.386% 0 <6.0 52.6°C 0.94
12.191V 5.071V 3.263V 5.095V 277.009 41.28°C 229.85V
40% 24.908A 4A 4A 1.6A 345 93.602% 0 <6.0 51.75°C 0.952
12.187V 5.069V 3.261V 5.084V 368.583 41.95°C 229.83V
50% 31.206A 5.001A 5.001A 1.8A 430.902 93.472% 450 <6.0 42.39°C 0.96
12.182V 5.066V 3.258V 5.074V 460.997 50.04°C 229.82V
60% 37.530A 5.999A 6A 2A 516.936 93.171% 864 19.1 42.83°C 0.965
12.175V 5.063V 3.255V 5.063V 554.829 49.03°C 229.81V
70% 43.826A 6.999A 7A 2.2A 602.581 92.791% 965 22.3 43.19°C 0.969
12.168V 5.06V 3.252V 5.053V 649.4 49.09°C 229.79V
80% 50.187A 7.999A 8.001A 2.3A 688.443 92.335% 1135 25 43.74°C 0.972
12.162V 5.058V 3.25V 5.044V 745.596 49.98°C 229.78V
90% 56.886A 8.499A 8.5A 2.4A 774.24 91.851% 1429 34.9 44.34°C 0.975
12.157V 5.056V 3.248V 5.036V 842.935 50.51°C 229.76V
100% 63.368A 8.999A 9A 3A 859.776 91.269% 1680 39.6 45.42°C 0.978
12.151V 5.054V 3.246V 5.017V 942.017 51.67°C 229.74V
110% 69.769A 9.998A 10A 3A 945.406 90.602% 2001 45 46.87°C 0.979
12.146V 5.052V 3.244V 5.011V 1043.471 53.29°C 229.73V
CL1 0.118A 14.456A 14.459A 0A 121.497 86.056% 1181 29.4 41.36°C 0.893
12.201V 5.057V 3.248V 5.125V 141.186 47.5°C 229.87V
CL2 0.116A 19.991A 0A 0A 102.55 84.829% 1178 29.3 40.27°C 0.873
12.200V 5.059V 3.26V 5.13V 120.89 45°C 229.88V
CL3 0.116A 0A 20.003A 0A 66.422 80.153% 641 7.7 41.3°C 0.807
12.198V 5.069V 3.25V 5.13V 82.869 45.3°C 229.88V
CL4 70.838A 0A 0A 0A 860.892 91.982% 1521 36.9 45.87°C 0.977
12.153V 5.067V 3.26V 5.089V 935.934 50.48°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 1.218A 0.492A 0.505A 0.195A 20.004 73.484% 0 <6.0 43.67°C 0.87
12.193V 5.076V 3.27V 5.135V 27.223 36.7°C 114.93V
40W 2.681A 0.689A 0.706A 0.292A 40.001 83.001% 0 <6.0 44.1°C 0.936
12.194V 5.076V 3.27V 5.132V 48.192 37.48°C 114.91V
60W 4.144A 0.886A 0.908A 0.39A 60 86.477% 0 <6.0 46.15°C 0.957
12.194V 5.076V 3.27V 5.129V 69.382 38.59°C 114.9V
80W 5.602A 1.084A 1.11A 0.488A 79.949 88.423% 0 <6.0 46.89°C 0.966
12.195V 5.076V 3.269V 5.126V 90.416 39.52°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 1.240A 0.5A 0.5A 0.2A 20.332 75.101% 0 <6.0 41.49°C 0.489
12.200V 5.077V 3.27V 5.136V 27.075 36.5°C 229.89V
41W 2.720A 0.7A 0.7A 0.3A 40.569 84.449% 0 <6.0 41.59°C 0.669
12.200V 5.077V 3.27V 5.133V 48.041 37.12°C 229.89V
61W 4.224A 0.9A 0.9A 0.4A 61.098 88.007% 0 <6.0 44.06°C 0.767
12.199V 5.076V 3.27V 5.129V 69.424 38.2°C 229.88V
81W 5.704A 1.1A 1.1A 0.5A 81.332 89.977% 0 <6.0 45.55°C 0.824
12.199V 5.076V 3.269V 5.126V 90.392 39.14°C 229.88V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load19.03mV14.82mV13.61mV13.76mVPass
20% Load20.52mV14.92mV13.40mV13.91mVPass
30% Load20.77mV15.17mV13.86mV15.14mVPass
40% Load23.69mV14.51mV13.20mV15.04mVPass
50% Load25.99mV15.58mV14.58mV15.34mVPass
60% Load25.48mV14.51mV13.76mV15.04mVPass
70% Load27.52mV14.87mV13.71mV15.65mVPass
80% Load29.06mV14.61mV14.63mV16.42mVPass
90% Load30.90mV15.02mV15.30mV15.81mVPass
100% Load44.38mV16.97mV17.24mV18.29mVPass
110% Load47.37mV16.68mV16.87mV17.40mVPass
Crossload124.30mV15.90mV15.65mV15.40mVPass
Crossload217.80mV17.01mV13.20mV13.97mVPass
Crossload316.88mV14.82mV16.68mV14.02mVPass
Crossload444.99mV15.20mV14.35mV16.55mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load17.80mV14.46mV13.45mV13.91mVPass
20% Load20.00mV14.46mV13.25mV13.96mVPass
30% Load22.76mV15.68mV14.48mV14.83mVPass
40% Load23.79mV15.28mV13.91mV13.86mVPass
50% Load25.12mV14.87mV14.37mV14.68mVPass
60% Load25.79mV14.10mV13.66mV14.68mVPass
70% Load26.60mV15.38mV14.58mV15.19mVPass
80% Load28.91mV15.89mV14.68mV16.73mVPass
90% Load32.59mV15.07mV15.81mV15.60mVPass
100% Load46.46mV17.19mV16.66mV17.94mVPass
110% Load47.67mV16.96mV17.51mV18.60mVPass
Crossload124.79mV15.57mV14.93mV15.27mVPass
Crossload218.21mV17.73mV13.30mV15.04mVPass
Crossload318.52mV14.30mV15.55mV14.17mVPass
Crossload445.75mV15.11mV14.66mV16.85mVPass

The results above are not used in the certification process

ASRock Steel Legend SL-850G / SL-850GW

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
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