CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Version:00
ASRock Steel Legend SL-1200G / SL-1200GW
Serial Number-
Lab IDAR12002830
Certification ID252830
  • Test Result Report ID: 25PS2830A
  • Certificate Issue Date: Jun 2, 2025
115V230V
Scheme: ETA-EMI PSU
115V230V
Scheme: LAMBDA PSU
Aristeidis Bitziopoulos, Certification Body General Manager

General Information

DUT Information

BrandASRock
Manufacturer (OEM)HEC
SeriesSteel Legend
Model NumberSteel Legend SL-1200G
Serial Number-
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)
Cooling135mm Fluid Dynamic Bearing Fan (S1352512EH-3M)
Semi-Passive Operation✓ (selectable)
Cable DesignFully Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps252510030.3
Watts1501200153.6
Total Max. Power (W)1200

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
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
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 24 pin (590mm) 1 1 16-18AWG No
4+4 pin EPS12V (640mm) 1 1 18AWG No
8 pin EPS12V (640mm) 1 1 18AWG No
6+2 pin PCIe (650mm) 3 3 16AWG No
12+4 pin PCIe (645mm) (600W) 2 2 16-24AWG No
SATA (450mm+120mm+120mm+120mm) 2 8 18AWG No
SATA (445mm) / 4-pin Molex (120mm+110mm+110mm) 1 1 / 3 18AWG No

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)89.875%
Average Noise Output (>1450 Load Combinations)22.62dBA
Average PF (>1450 Load Combinations)0.986
Efficiency With 10W (≤500W) or 2% (>500W) Load78.869%
Standby Power Consumption0.0455W
12V Ripple (Full Load)32.71mV
5V Ripple (Full Load)23.10mV
3.3V Ripple (Full Load)26.42mV
5VSB Ripple (Full Load)12.24mV
12V Load Regulation0.72%
5V Load Regulation0.20%
3.3V Load Regulation0.42%
5VSB Load Regulation1.74%
Inrush Current35.810A
Efficiency RatingPLATINUM
Noise RatingA
Average Efficiency (>1450 load combinations)92.059%
Average Noise Output (>1450 Load Combinations)22.17dBA
Average PF (>1450 Load Combinations)0.953
Efficiency With 10W (≤500W) or 2% (>500W) Load79.152%
Standby Power Consumption0.1166W
12V Ripple (Full Load)34.08mV
5V Ripple (Full Load)23.38mV
3.3V Ripple (Full Load)25.63mV
5VSB Ripple (Full Load)12.28mV
12V Load Regulation0.74%
5V Load Regulation0.23%
3.3V Load Regulation0.49%
5VSB Load Regulation1.84%
Inrush Current64.690A
12V Transient Response (200%)11.35V
5V Transient Response (200%)5.054V
3.3V Transient Response (200%)3.191V
5VSB Transient Response (200%)5.044V
Hold-Up Time & Power Ok Signal16.00ms
AC Loss to PWR_OK Hold Up Time13.10ms
PWR_OK Inactive to DC Loss Delay2.90ms
PSU Timings: T1 (20% / 100%)55.0ms54.0ms
PSU Timings: T3 (20% / 100%)125.0ms123.0ms
12V OCP (27.0°C / 45.0°C)138.00A (138.00%), 11.982V137.00A (137.00%), 11.986V
5V OCP (27.0°C / 45.0°C)30.7A (122.80%), 5.175V30.2A (120.80%), 5.173V
3.3V OCP (27.0°C / 45.0°C)30.9A (123.60%), 3.296V30.4A (121.60%), 3.304V
5VSB OCP (27.0°C / 45.0°C)4.7A (156.67%), 5.075V4.7A (156.67%), 5.077V
OPP (29.22°C / 44.54°C)126.76%122.09%

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)16
AC Loss to PWR_OK Hold Up Time (ms)13.1
PWR_OK Inactive to DC Loss Delay (ms)2.9

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 115.09 V 115.04 V 113.85 V 115.12 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 0.19 % 2.00 % PASS
Real Power: 0.046 W -0.003 W N/A 0.095 W N/A N/A
Apparent Power: 14.349 W 13.727 W N/A 15.000 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: 231.03 V 230.94 V 227.70 V 231.10 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 % 0.14 % N/A 0.26 % 2.00 % PASS
Real Power: 0.117 W 0.062 W N/A 0.189 W N/A N/A
Apparent Power: 47.025 W 45.898 W N/A 47.952 W N/A N/A
Power Factor: 0.002 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 0.231W 66.058% 0.026
5.139V 0.35W 114.85V
2 0.09A 0.463W 74.629% 0.046
5.139V 0.62W 114.85V
3 0.55A 2.822W 81.516% 0.219
5.131V 3.462W 114.85V
4 1A 5.123W 81.946% 0.323
5.123V 6.252W 114.83V
5 1.5A 7.673W 81.731% 0.381
5.115V 9.388W 114.83V
6 3A 15.272W 80.785% 0.468
5.09V 18.903W 114.83V
Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.231W 55.458% 0.009
5.138V 0.419W 229.85V
2 0.09A 0.462W 68.267% 0.014
5.137V 0.679W 229.84V
3 0.55A 2.822W 80.354% 0.072
5.13V 3.512W 229.83V
4 1A 5.123W 81.522% 0.124
5.122V 6.285W 229.83V
5 1.5A 7.672W 82.172% 0.175
5.114V 9.336W 229.82V
6 3A 15.269W 81.536% 0.287
5.089V 18.727W 229.82V

Protection Features

OCP (Normal @ 27.0°C)12V: 138.00A (138.00%), 11.982V
5V: 30.7A (122.80%), 5.175V
3.3V: 30.9A (123.60%), 3.296V
5VSB: 4.7A (156.67%), 5.075V
OCP (Hot @ 45.0°C)12V: 137.00A (137.00%), 11.986V
5V: 30.2A (120.80%), 5.173V
3.3V: 30.4A (121.60%), 3.304V
5VSB: 4.7A (156.67%), 5.077V
OPP (Normal @ 29.2°C)1521.14W (126.76%)
OPP (Hot @ 44.5°C)1465.12W (122.09%)
OTP✓ (130°C @ Heat Sink)
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% 8.170A 1.947A 1.995A 0.974A 119.981 86.552% 0 <6.0 47.92°C 0.966
12.041V 5.136V 3.309V 5.135V 138.624 40.19°C 114.81V
20% 17.368A 2.921A 2.993A 1.17A 239.933 91.871% 0 <6.0 48.78°C 0.973
12.036V 5.135V 3.307V 5.127V 261.163 40.89°C 114.77V
30% 26.853A 3.408A 3.493A 1.368A 359.092 92.52% 0 <6.0 49.25°C 0.982
12.030V 5.135V 3.307V 5.119V 388.126 41.33°C 114.73V
40% 36.450A 3.896A 3.994A 1.566A 479.465 92.42% 514 <6.0 41.75°C 0.988
12.023V 5.133V 3.305V 5.111V 518.791 49.05°C 114.68V
50% 45.661A 4.871A 4.995A 1.764A 599.25 92.036% 710 12.9 24.29°C 0.991
12.018V 5.132V 3.303V 5.102V 651.104 50.71°C 114.65V
60% 54.940A 5.847A 5.997A 1.964A 719.804 91.404% 959 23.3 42.51°C 0.993
12.013V 5.131V 3.302V 5.093V 787.498 49.55°C 114.59V
70% 64.161A 6.823A 7.001A 2.163A 839.556 90.722% 1130 28.5 43.05°C 0.994
12.008V 5.13V 3.3V 5.085V 925.41 51.07°C 114.56V
80% 73.453A 7.798A 8.003A 2.265A 959.55 89.931% 1249 31.8 43.86°C 0.995
12.003V 5.13V 3.299V 5.078V 1066.986 52.88°C 114.51V
90% 83.089A 8.289A 8.493A 2.367A 1079.425 89.044% 1609 39 44.82°C 0.996
11.998V 5.128V 3.297V 5.072V 1212.238 55.44°C 114.46V
100% 92.520A 8.777A 9.011A 2.967A 1199.454 88.095% 1885 44.2 45.73°C 0.996
11.995V 5.127V 3.296V 5.057V 1361.547 56.03°C 114.41V
110% 101.907A 9.754A 10.108A 2.97A 1320.047 87.128% 2278 48.6 46.58°C 0.996
11.989V 5.127V 3.294V 5.052V 1515.06 55.83°C 114.36V
CL1 0.117A 17.578A 18.085A 0A 151.315 83.669% 1035 25.9 42.75°C 0.969
12.030V 5.138V 3.295V 5.145V 180.851 52.88°C 114.79V
CL2 0.117A 19.402A 0A 0A 101.385 81.329% 713 13 42.58°C 0.963
12.036V 5.153V 3.3V 5.151V 124.66 50.9°C 114.82V
CL3 0.116A 0A 19.957A 0A 67.391 73.268% 688 11.7 41.29°C 0.95
12.035V 5.124V 3.307V 5.15V 91.979 49.01°C 114.82V
CL4 99.985A 0A 0A 0A 1199.993 88.743% 1704 40.8 46.09°C 0.996
12.001V 5.129V 3.305V 5.107V 1352.228 54.59°C 114.43V

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% 8.172A 1.948A 1.995A 0.974A 120.009 87.419% 678 10.5 40.28°C 0.849
12.041V 5.133V 3.308V 5.136V 137.306 46.01°C 229.82V
20% 17.369A 2.923A 2.994A 1.17A 239.975 93.031% 0 <6.0 43.11°C 0.925
12.037V 5.133V 3.307V 5.128V 257.944 40.67°C 229.79V
30% 26.863A 3.411A 3.494A 1.368A 359.247 93.869% 508 <6.0 41.38°C 0.95
12.031V 5.131V 3.306V 5.119V 382.714 47.24°C 229.77V
40% 36.460A 3.9A 3.996A 1.566A 479.621 94.083% 687 11.7 42.03°C 0.963
12.024V 5.129V 3.304V 5.11V 509.782 47.91°C 229.75V
50% 45.677A 4.875A 4.999A 1.766A 599.357 94.051% 528 <6.0 42.49°C 0.969
12.016V 5.128V 3.301V 5.098V 637.27 45.15°C 229.74V
60% 54.949A 5.851A 6A 1.964A 719.89 93.773% 848 19.2 42.94°C 0.975
12.012V 5.128V 3.301V 5.091V 767.693 47.58°C 229.71V
70% 64.164A 6.828A 7.003A 2.164A 839.614 93.415% 1099 27.5 43.37°C 0.978
12.008V 5.127V 3.299V 5.084V 898.796 49.29°C 229.69V
80% 73.452A 7.803A 8.006A 2.266A 959.598 92.948% 1232 31.3 43.63°C 0.981
12.004V 5.126V 3.297V 5.077V 1032.398 50.61°C 229.66V
90% 83.077A 8.292A 8.494A 2.367A 1079.343 92.522% 1410 35.1 44.62°C 0.983
11.999V 5.125V 3.296V 5.07V 1166.588 50.95°C 229.64V
100% 92.508A 8.783A 9.013A 2.967A 1199.407 91.87% 1703 40.8 45.52°C 0.985
11.995V 5.124V 3.295V 5.056V 1305.545 52.44°C 229.62V
110% 101.887A 9.761A 10.111A 2.971A 1320.038 91.17% 2285 48.8 46.67°C 0.986
11.991V 5.122V 3.293V 5.05V 1447.876 53.39°C 229.6V
CL1 0.117A 17.602A 18.089A 0A 151.311 84.804% 895 20.7 41.44°C 0.89
12.029V 5.13V 3.294V 5.144V 178.426 48.9°C 229.79V
CL2 0.117A 19.425A 0A 0A 101.385 82.183% 687 11.7 41.34°C 0.831
12.035V 5.147V 3.299V 5.15V 123.372 48.21°C 229.8V
CL3 0.116A 0A 19.957A 0A 67.39 74.359% 666 10.3 42.38°C 0.762
12.035V 5.124V 3.307V 5.15V 90.625 48.46°C 229.81V
CL4 99.979A 0A 0A 0A 1200.002 92.342% 1605 39 44.23°C 0.984
12.002V 5.128V 3.304V 5.106V 1299.513 49.65°C 229.61V

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 1.242A 0.487A 0.498A 0.194A 19.995 76.62% 0 <6.0 41.59°C 0.794
11.955V 5.137V 3.31V 5.145V 26.09 36.09°C 114.86V
40W 2.730A 0.681A 0.698A 0.292A 39.996 82.144% 0 <6.0 44.2°C 0.896
11.972V 5.137V 3.31V 5.144V 48.693 37.59°C 114.84V
60W 4.214A 0.876A 0.897A 0.389A 59.996 85.112% 0 <6.0 42.37°C 0.929
11.990V 5.137V 3.31V 5.143V 70.492 38.1°C 114.84V
80W 5.672A 1.07A 1.096A 0.486A 79.933 80.713% 0 <6.0 46.03°C 0.951
12.041V 5.137V 3.31V 5.144V 99.035 39.46°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 1.242A 0.487A 0.498A 0.194A 20.007 78.194% 0 <6.0 36.54°C 0.382
11.956V 5.136V 3.311V 5.148V 25.589 36.1°C 229.83V
40W 2.730A 0.681A 0.698A 0.291A 40.006 83.184% 0 <6.0 40.87°C 0.575
11.975V 5.136V 3.311V 5.147V 48.095 37.73°C 229.82V
60W 4.196A 0.876A 0.897A 0.389A 60.005 77.818% 0 <6.0 41.79°C 0.719
12.042V 5.136V 3.311V 5.149V 77.109 38.77°C 229.82V
80W 5.673A 1.071A 1.096A 0.486A 79.955 81.601% 0 <6.0 44.07°C 0.782
12.044V 5.136V 3.31V 5.146V 97.986 39.35°C 229.81V

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load26.70mV18.68mV19.09mV10.62mVPass
20% Load32.07mV18.12mV18.57mV10.57mVPass
30% Load29.20mV20.37mV21.29mV11.70mVPass
40% Load27.36mV19.14mV19.29mV10.78mVPass
50% Load38.15mV25.51mV39.50mV15.45mVPass
60% Load29.05mV22.38mV34.06mV11.14mVPass
70% Load29.41mV17.76mV20.57mV11.85mVPass
80% Load30.94mV19.71mV21.70mV12.16mVPass
90% Load30.84mV18.58mV23.39mV12.06mVPass
100% Load32.71mV23.10mV26.42mV12.24mVPass
110% Load34.06mV23.62mV27.98mV13.14mVPass
Crossload124.07mV17.27mV18.87mV9.87mVPass
Crossload225.78mV19.24mV25.65mV10.42mVPass
Crossload330.28mV17.45mV19.90mV10.52mVPass
Crossload432.10mV18.29mV20.82mV11.83mVPass

The results above are not used in the certification process

Test12V5V3.3V5VSBPass/Fail
10% Load30.02mV16.78mV16.37mV9.34mVPass
20% Load31.86mV18.84mV18.83mV10.93mVPass
30% Load27.88mV21.04mV20.78mV10.62mVPass
40% Load33.25mV23.35mV34.63mV16.37mVPass
50% Load29.92mV20.53mV24.58mV11.39mVPass
60% Load29.97mV17.91mV19.03mV10.72mVPass
70% Load30.23mV19.35mV20.78mV11.91mVPass
80% Load29.97mV18.73mV21.19mV11.59mVPass
90% Load33.19mV18.73mV21.96mV12.16mVPass
100% Load34.08mV23.38mV25.63mV12.28mVPass
110% Load33.15mV23.67mV26.66mV11.94mVPass
Crossload126.11mV16.51mV18.72mV9.86mVPass
Crossload225.01mV19.86mV18.06mV10.21mVPass
Crossload330.02mV18.73mV20.93mV10.21mVPass
Crossload432.18mV18.17mV21.31mV10.75mVPass

The results above are not used in the certification process

ASRock Steel Legend SL-1200G / SL-1200GW

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
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