PCCooler YT1200 ATX v3.1 PSU Review

Load Regulation

It measures the stability of the output voltage when the load connected to the power supply varies.

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 8.119A 1.991A 1.952A 0.983A 120.015 86.011% 0 <6.0 47.26°C 0.974
12.122V 5.024V 3.381V 5.09V 139.542 40.44°C 114.93V
20% 17.252A 2.988A 2.931A 1.182A 239.981 90.881% 0 <6.0 47.68°C 0.976
12.119V 5.021V 3.378V 5.078V 264.055 40.72°C 114.9V
30% 26.723A 3.488A 3.422A 1.382A 359.396 91.865% 0 <6.0 48.71°C 0.977
12.100V 5.019V 3.375V 5.065V 391.225 41.42°C 114.87V
40% 36.251A 3.988A 3.914A 1.584A 479.758 91.714% 908 26.8 41.84°C 0.981
12.097V 5.017V 3.373V 5.053V 523.104 58.94°C 114.83V
50% 45.392A 4.987A 4.897A 1.786A 599.522 91.424% 907 26.7 42.36°C 0.984
12.095V 5.014V 3.369V 5.041V 655.758 59.25°C 114.79V
60% 54.586A 5.988A 5.882A 1.989A 720.047 90.885% 903 26.5 42.95°C 0.986
12.096V 5.011V 3.367V 5.028V 792.265 62.35°C 114.76V
70% 63.720A 6.991A 6.869A 2.193A 839.783 90.157% 1484 41.2 43.03°C 0.987
12.095V 5.008V 3.363V 5.016V 931.463 57.19°C 114.73V
80% 72.917A 7.994A 7.856A 2.298A 959.785 89.458% 1482 41.1 43.85°C 0.988
12.095V 5.004V 3.36V 5.006V 1072.886 60.19°C 114.7V
90% 82.410A 8.498A 8.339A 2.403A 1079.599 88.631% 1478 40.9 44.82°C 0.989
12.099V 5.002V 3.358V 4.995V 1218.079 64.16°C 114.66V
100% 91.726A 9.001A 8.853A 3.017A 1199.669 87.681% 1866 48.4 45.33°C 0.99
12.100V 5V 3.355V 4.972V 1368.213 63.41°C 114.62V
110% 100.949A 10.005A 9.935A 3.023A 1320.287 86.609% 1860 48.4 46.63°C 0.991
12.105V 4.998V 3.352V 4.963V 1524.423 67.97°C 114.58V
CL1 0.116A 12.015A 11.765A 0A 101.303 82.663% 919 27.4 40.07°C 0.976
12.064V 5.011V 3.374V 5.106V 122.555 54.91°C 114.95V
CL2 0.115A 19.985A 0A 0A 101.398 78.933% 1194 35.5 40.89°C 0.974
12.131V 5.004V 3.383V 5.111V 128.457 48.9°C 114.95V
CL3 0.116A 0A 19.583A 0A 67.39 76.424% 1199 35.6 40.07°C 0.958
12.050V 5.025V 3.37V 5.11V 88.179 46.13°C 114.96V
CL4 99.293A 0A 0A 0.001A 1200.099 88.312% 1867 48.4 45.94°C 0.99
12.086V 5.014V 3.364V 5.059V 1358.939 60.66°C 114.63V

Load regulation is within 1% on all primary rails, so all is good here.

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.234A 0.497A 0.487A 0.195A 20.005 71.534% 0 <6.0 44.36°C 0.727
12.041V 5.028V 3.385V 5.119V 26.208 36.39°C 114.96V
40W 2.715A 0.696A 0.682A 0.293A 40.002 82.267% 0 <6.0 44.72°C 0.89
12.041V 5.028V 3.385V 5.115V 48.623 37.25°C 114.96V
60W 4.194A 0.895A 0.878A 0.391A 60.001 85.163% 0 <6.0 44.25°C 0.942
12.047V 5.027V 3.384V 5.11V 70.459 38.23°C 114.94V
80W 5.670A 1.095A 1.073A 0.49A 79.963 86.388% 0 <6.0 43.85°C 0.96
12.050V 5.026V 3.383V 5.106V 92.566 39.03°C 114.94V

A glance at the light loads table is always useful, as the PSU will typically operate at light loads.

Ripple Suppression

Ripple in power supplies refers to the small, unwanted AC voltage fluctuations superimposed on the DC output. It occurs due to imperfect filtering of the AC-to-DC conversion process. Lower ripple is highly preferable because it ensures a cleaner, more stable DC output, thereby reducing noise and potential interference in sensitive electronics, which improves performance and extends the lifespan of components. High ripple can cause instability, overheating, or damage to connected devices.

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 13.1 mV 7.4 mV 6.1 mV 12.9 mV Pass
20% Load 11.6 mV 8.2 mV 6.8 mV 14.2 mV Pass
30% Load 11.8 mV 8.9 mV 7.2 mV 16.1 mV Pass
40% Load 12.2 mV 13.5 mV 11.9 mV 15.7 mV Pass
50% Load 13.4 mV 9.8 mV 8.9 mV 18.0 mV Pass
60% Load 13.2 mV 10.1 mV 9.5 mV 17.3 mV Pass
70% Load 13.1 mV 10.6 mV 10.2 mV 20.9 mV Pass
80% Load 13.3 mV 11.9 mV 16.0 mV 20.8 mV Pass
90% Load 14.3 mV 11.7 mV 16.9 mV 21.2 mV Pass
100% Load 18.2 mV 12.0 mV 18.1 mV 27.7 mV Pass
110% Load 17.3 mV 12.5 mV 19.0 mV 28.8 mV Pass
Crossload 1 20.1 mV 10.6 mV 13.5 mV 10.9 mV Pass
Crossload 2 12.6 mV 9.6 mV 6.7 mV 9.2 mV Pass
Crossload 3 21.7 mV 8.7 mV 15.0 mV 9.7 mV Pass
Crossload 4 17.1 mV 11.6 mV 12.1 mV 16.1 mV Pass

Ripple suppression is good overall.

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