Ripple Measurements
You will see the ripple levels we measured on the main rails of the HALE82 V2 700 W in the following table. The limits are, according to the ATX specification, 120 mV (+12V) and 50 mV (5V, 3.3V, and 5VSB).
Ripple Measurements NZXT HALE82-700 V2 |
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Test | 12 V | 5 V | 3.3 V | 5VSB | Pass/Fail |
20% Load | 25.3 mV | 11.9 mV | 15.1 mV | 18.6 mV | Pass |
40% Load | 26.1 mV | 14.8 mV | 16.7 mV | 19.3 mV | Pass |
50% Load | 30.2 mV | 17.0 mV | 15.7 mV | 23.5 mV | Pass |
60% Load | 30.2 mV | 17.3 mV | 15.6 mV | 26.4 mV | Pass |
80% Load | 36.9 mV | 22.0 mV | 20.2 mV | 36.0 mV | Pass |
100% Load | 62.6 mV | 30.3 mV | 22.4 mV | 42.6 mV | Pass |
110% Load | 55.9 mV | 27.6 mV | 26.5 mV | 46.0 mV | Pass |
Crossload 1 | 61.7 mV | 142.2 mV | 25.7 mV | 9.7 mV | Fail |
Crossload 2 | 44.2 mV | 23.7 mV | 30.2 mV | 40.7 mV | Pass |
Ripple suppression on the +12V rail and up to the 80% load test was fine, but exploded after 80% load. It is also really strange that ripple during the overload test is lower than the registered ripple at full load, and that for all rails but 5VSB. Something that affects ripple suppression apparently chimes best with 770 W load instead of 700 W. All in all, we would like lower ripple, 40 mV or so, on the +12V rail, and much lower ripple at 5VSB, though the components this rail feeds aren't as sensitive to ripple. Ripple on 5V also exploded during the for a group regulated PSU tough CL1 test, exceeding 140 mV, which is almost three times the limit!
Ripple at Full Load
In the following oscilloscope screenshots, you can see the AC ripple and noise the main rails registered (+12V, 5V, 3.3V, and 5VSB). The bigger the fluctuations on the oscilloscope's screen, the bigger the ripple/noise. For all measurements, we set 0.01 V/Div (each vertical division/box equals 0.01 V) as standard.
Ripple at 110% Load
Ripple at Crossload 1
Ripple at Crossload 2