ASRock SL-1200G 1200W ATX v3.1 PSU Review

Load Regulation

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

Load regulation is tight enough at 12V and extra-tight on the minor rails.

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

A glance at the light loads table is always useful, as the PSU will typically operate at light loads. As you can see, the fan doesn’t operate in the loads I applied, despite the high operating temperatures.

Ripple Suppression

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 26.7 mV 18.7 mV 19.1 mV 10.6 mV Pass
20% Load 32.1 mV 18.1 mV 18.6 mV 10.6 mV Pass
30% Load 29.2 mV 20.4 mV 21.3 mV 11.7 mV Pass
40% Load 27.4 mV 19.1 mV 19.3 mV 10.8 mV Pass
50% Load 38.2 mV 25.5 mV 39.5 mV 15.5 mV Pass
60% Load 29.1 mV 22.4 mV 34.1 mV 11.1 mV Pass
70% Load 29.4 mV 17.8 mV 20.6 mV 11.9 mV Pass
80% Load 30.9 mV 19.7 mV 21.7 mV 12.2 mV Pass
90% Load 30.8 mV 18.6 mV 23.4 mV 12.1 mV Pass
100% Load 32.7 mV 23.1 mV 26.4 mV 12.2 mV Pass
110% Load 34.1 mV 23.6 mV 28.0 mV 13.1 mV Pass
Crossload 1 24.1 mV 17.3 mV 18.9 mV 9.9 mV Pass
Crossload 2 25.8 mV 19.2 mV 25.7 mV 10.4 mV Pass
Crossload 3 30.3 mV 17.5 mV 19.9 mV 10.5 mV Pass
Crossload 4 32.1 mV 18.3 mV 20.8 mV 11.8 mV Pass

Ripple suppression is good enough at 12V but not that good on the minor rails.

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6 thoughts on “ASRock SL-1200G 1200W ATX v3.1 PSU Review

  1. Aris would u update Gamemax Lioncore 1000/1200P series, i’ve seen they just had cybenetics platinum ratings

    1. I will review them at some point. Their OEM is doing some serious effort to improve, and I try to help them (as I do with all the other OEMs who send me products for testing)

  2. Love your work but could you in future articles explain every test with simple explanation? I always forget what’s what and have to go to your Tom’s HW reviews to check 😀
    For example from the Hold up time segment there: “Put simply; hold-up time is the amount of time that the system can continue to run without shutting down or rebooting during a power interruption.”

    If you could mention briefly at the beginning of each test that would be great. If it’s not hassle to paste it every time of course 🙂

    I’m still rocking a 2019 Seasonic Focus GX which I picked based on Jonny Guru’s review and I’m afraid that it will die soon so started my research and I’m glad to see that there is a new Guru in the PSU review space so thank you for your work.
    Also, your reviews now made me hesitant to buy Seasonic when the time is here lol hopefully they are still reliable even though they are now midrange in these tests

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