MSI MAG A1250GL PCIE5 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% 8.522A 1.981A 1.972A 1.001A 124.967 85.068% 400 <6.0 40.18C 0.971
12.130V 5.047V 3.347V 4.995V 146.902 44.47C 114.87V
20% 18.077A 2.975A 2.961A 1.205A 249.974 89.756% 401 <6.0 40.70C 0.981
12.119V 5.042V 3.344V 4.979V 278.511 45.29C 114.83V
30% 28.008A 3.473A 3.457A 1.402A 374.46 90.902% 401 <6.0 41.25C 0.981
12.082V 5.039V 3.342V 4.993V 411.934 46.25C 114.78V
40% 20.784A 0.391A 0.282A 0.129A 490.414 91.006% 402 <6.0 41.64C 0.27
12.122V 5.049V 3.352V 5.025V 538.882 47.19C 114.87V
50% 47.754A 4.971A 4.946A 1.813A 624.917 90.235% 446 7.2 42.45C 0.987
12.028V 5.029V 3.336V 4.964V 692.542 48.46C 114.69V
60% 57.460A 5.971A 5.942A 2A 749.329 89.45% 931 28.6 42.65C 0.989
12.002V 5.025V 3.333V 4.95V 837.71 49.15C 114.65V
70% 67.284A 6.973A 6.941A 2.229A 874.73 88.549% 1348 39.4 43.35C 0.991
11.975V 5.02V 3.329V 4.935V 987.85 50.41C 114.59V
80% 77.135A 7.973A 7.94A 2.336A 999.515 87.556% 1799 46.1 43.91C 0.992
11.949V 5.016V 3.325V 4.922V 1141.58 52.02C 114.54V
90% 87.373A 8.478A 8.43A 2.444A 1124.929 86.537% 2187 50.2 44.69C 0.993
11.931V 5.012V 3.322V 4.909V 1299.946 53.83C 114.5V
100% 97.312A 8.984A 8.95A 3.072A 1249.771 85.405% 2186 50.2 45.47C 0.994
11.921V 5.008V 3.319V 4.882V 1463.341 55.47C 114.43V
110% 107.009A 9.99A 10.036A 3.079A 1374.37 84.289% 2188 50.3 46.34C 0.995
11.925V 5.005V 3.318V 4.872V 1630.544 57.21C 114.38V
CL1 0.114A 14.382A 14.31A 0A 121.275 79.997% 402 <6.0 40.76C 0.972
12.131V 5.019V 3.333V 5.013V 151.602 48.89C 114.87V
CL2 0.114A 21.963A 0A 0A 111.294 77.247% 403 <6.0 41.38C 0.972
12.144V 5.005V 3.345V 5.017V 144.075 48.17C 114.88V
CL3 0.114A 0A 21.762A 0A 73.992 72.183% 403 <6.0 41.59C 0.961
12.147V 5.02V 3.336V 5.017V 102.509 48.27C 114.89V
CL4 104.773A 0A 0A 0A 1249.551 86.095% 2192 50.3 45.40C 0.994
11.926V 5.028V 3.336V 4.969V 1451.368 53.12C 114.45V

Load regulation is loose at 12V, the most important rail. It is within 1% on the minor rails, 5V and 3.3V, but still, it is not competitive.

Ripple Suppression

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 13.6 mV 13.5 mV 12.0 mV 16.4 mV Pass
20% Load 14.5 mV 13.2 mV 12.0 mV 15.2 mV Pass
30% Load 19.0 mV 13.9 mV 12.2 mV 16.4 mV Pass
40% Load 22.4 mV 13.0 mV 10.5 mV 17.4 mV Pass
50% Load 18.0 mV 14.5 mV 13.2 mV 17.3 mV Pass
60% Load 19.3 mV 23.6 mV 14.3 mV 18.6 mV Pass
70% Load 19.8 mV 26.9 mV 17.7 mV 20.4 mV Pass
80% Load 21.1 mV 18.1 mV 14.8 mV 20.0 mV Pass
90% Load 21.1 mV 18.4 mV 15.4 mV 21.3 mV Pass
100% Load 16.4 mV 20.3 mV 16.4 mV 29.9 mV Pass
110% Load 32.9 mV 21.2 mV 18.4 mV 32.0 mV Pass
Crossload 1 15.8 mV 15.5 mV 14.0 mV 17.0 mV Pass
Crossload 2 17.6 mV 22.9 mV 12.8 mV 15.6 mV Pass
Crossload 3 18.4 mV 14.5 mV 18.5 mV 16.1 mV Pass
Crossload 4 28.6 mV 18.4 mV 16.3 mV 30.7 mV Pass

Ripple suppression is good enough.

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One thought on “MSI MAG A1250GL PCIE5 ATX v3.1 PSU Review

  1. I got a MAG A1250GL power supply for my ryzen 9 7950X, X870 Tomahawk Wifi and RTX 3090 Gaming X, is this power supply safe for long productivity and 3D Rendering usage ?

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