Corsair HX1000i Shift 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% 6.500A 1.965A 1.94A 0.987A 99.976 88.834% 0 <6.0 49.39°C 0.889
12.059V 5.088V 3.401V 5.067V 112.54 40.04°C 114.89V
20% 14.026A 2.95A 2.913A 1.186A 199.923 92.067% 0 <6.0 51.44°C 0.991
12.051V 5.084V 3.398V 5.059V 217.149 40.51°C 114.85V
30% 21.911A 3.444A 3.402A 1.386A 299.969 92.942% 0 <6.0 53.35°C 0.994
12.045V 5.081V 3.395V 5.051V 322.763 41.13°C 114.82V
40% 29.765A 3.939A 3.891A 1.586A 399.479 92.956% 0 <6.0 56.05°C 0.995
12.037V 5.078V 3.392V 5.043V 429.752 41.52°C 114.79V
50% 37.360A 4.928A 4.87A 1.788A 499.206 92.593% 0 <6.0 58.8°C 0.995
12.010V 5.073V 3.388V 5.034V 539.146 42.44°C 114.75V
60% 44.989A 5.918A 5.85A 1.989A 599.754 91.893% 478 6.2 42.54°C 0.997
12.002V 5.07V 3.385V 5.027V 652.654 54.25°C 114.71V
70% 52.482A 6.907A 6.83A 2.191A 699.479 90.924% 578 11.8 43.16°C 0.998
12.011V 5.068V 3.383V 5.02V 769.304 54.36°C 114.68V
80% 60.118A 7.897A 7.812A 2.295A 799.495 90.257% 716 20.3 43.61°C 0.998
12.003V 5.064V 3.379V 5.011V 885.522 55.64°C 114.64V
90% 68.110A 8.395A 8.292A 2.399A 899.296 89.29% 1010 31.1 44.67°C 0.998
11.992V 5.061V 3.376V 5.003V 1007.271 57.43°C 114.6V
100% 75.898A 8.894A 8.803A 3.003A 999.308 88.57% 1197 36.1 45.61°C 0.998
11.985V 5.059V 3.374V 4.995V 1128.051 57.68°C 114.56V
110% 83.625A 9.889A 9.88A 3.008A 1099.933 87.797% 1353 39.3 46.37°C 0.998
11.977V 5.055V 3.371V 4.986V 1253.03 58.56°C 114.52V
CL1 0.116A 17.868A 17.675A 0A 151.296 84.576% 667 18.5 40.86°C 0.988
12.044V 5.053V 3.373V 5.051V 178.899 54.61°C 114.86V
CL2 0.115A 24.687A 0A 0A 126.238 83.437% 695 19.4 40.56°C 0.928
12.052V 5.057V 3.385V 5.057V 151.303 51.22°C 114.86V
CL3 0.115A 0A 24.469A 0A 83.898 78.14% 725 20.7 40.39°C 0.882
12.054V 5.066V 3.372V 5.058V 107.378 49.74°C 114.89V
CL4 83.355A 0A 0A 0A 999.897 89.274% 991 30.4 45.27°C 0.997
11.995V 5.074V 3.384V 4.998V 1121.162 52.69°C 114.57V

Load regulation is within 1% on all primary rails. I would like to see a tighter load regulation at 12V, given the digital control.

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.230A 0.491A 0.485A 0.197A 19.992 66.449% 0 <6.0 46.98°C 0.737
12.067V 5.093V 3.401V 5.073V 30.095 36.03°C 114.92V
40W 2.708A 0.687A 0.679A 0.296A 39.989 76.737% 0 <6.0 45.48°C 0.802
12.066V 5.093V 3.403V 5.072V 52.119 37.76°C 114.91V
60W 4.188A 0.884A 0.872A 0.394A 59.988 84.667% 0 <6.0 46.61°C 0.824
12.063V 5.091V 3.404V 5.07V 70.86 38.02°C 114.9V
80W 5.664A 1.08A 1.066A 0.493A 79.926 87.482% 0 <6.0 48.05°C 0.86
12.060V 5.09V 3.403V 5.069V 91.351 39.04°C 114.89V

A glance at the light-load table is always useful, as the PSU typically operates 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 during the AC-to-DC conversion. Lower ripple is highly preferable because it ensures a cleaner, more stable DC output, reducing noise and potential interference in sensitive electronics, improving performance, and extending component lifespan. High ripple can cause instability, overheating, or damage to connected devices.

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 16.0 mV 13.6 mV 13.9 mV 14.0 mV Pass
20% Load 15.0 mV 12.3 mV 13.0 mV 12.7 mV Pass
30% Load 16.8 mV 12.3 mV 12.9 mV 15.1 mV Pass
40% Load 18.9 mV 12.5 mV 12.0 mV 13.6 mV Pass
50% Load 25.3 mV 12.9 mV 12.8 mV 13.5 mV Pass
60% Load 19.9 mV 13.6 mV 13.4 mV 15.2 mV Pass
70% Load 19.2 mV 12.0 mV 12.6 mV 16.0 mV Pass
80% Load 23.0 mV 13.3 mV 13.6 mV 16.5 mV Pass
90% Load 20.7 mV 13.6 mV 14.5 mV 16.4 mV Pass
100% Load 25.8 mV 14.9 mV 15.6 mV 18.4 mV Pass
110% Load 28.1 mV 15.1 mV 15.2 mV 26.1 mV Pass
Crossload 1 23.9 mV 14.5 mV 17.4 mV 13.0 mV Pass
Crossload 2 17.1 mV 20.6 mV 15.1 mV 14.1 mV Pass
Crossload 3 15.5 mV 14.0 mV 18.8 mV 13.7 mV Pass
Crossload 4 27.2 mV 12.6 mV 13.9 mV 14.8 mV Pass

Ripple suppression is good overall.

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One thought on “Corsair HX1000i Shift ATX v3.1 PSU Review

  1. Ares,Do you intend to test the Rise mode PSU Zeus 1000 watts & 850 Watts PSUs?.
    They performed very well on teclab tests, i think they would get a good certification in cybenetics.com if tested

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