Rosewill Hercules 1600 W Review

Name: Rosewill Hercules 1600 W
Brand: Rosewill

crmaris

on Aug 27th, 2013,

in Power Supplies.

Manufacturer: Rosewill

Performance Rating & Performance per Dollar »

Ripple Measurements

You will see the ripple levels we measured on the main rails of the Hercules-1600 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 Rosewill Hercules-1600
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	18.4 mV	11.4 mV	19.4 mV	18.1 mV	Pass
40% Load	18.4 mV	13.1 mV	23.2 mV	18.9 mV	Pass
50% Load	23.7 mV	15.3 mV	25.1 mV	23.7 mV	Pass
60% Load	29.0 mV	19.1 mV	26.6 mV	24.6 mV	Pass
80% Load	33.6 mV	20.6 mV	32.3 mV	28.1 mV	Pass
100% Load	36.2 mV	21.3 mV	40.4 mV	34.5 mV	Pass
110% Load	51.8 mV	24.4 mV	43.9 mV	39.3 mV	Pass
Crossload 1	14.2 mV	13.9 mV	27.6 mV	19.2 mV	Pass
Crossload 2	33.4 mV	16.9 mV	32.3 mV	26.6 mV	Pass

Ripple suppression on +12V was outstanding considering the unit's capacity and good enough on the 5V rail. However, ripple could be lower on 5VSB and 3.3V since especially the latter rail exceeded 40 mV during both the full load and overload test. That said, the +12V rail is what matters the most, and it performed really well in this case.

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.