Rosewill Capstone Modular 1000 W Review

Name: Rosewill Capstone Modular 1000 W
Brand: Rosewill

crmaris

on Jul 21st, 2014,

in Power Supplies.

Manufacturer: Rosewill

Performance Rating, Performance per Dollar, Noise & Efficiency Rating »

Ripple Measurements

You will see the ripple levels we measured on the CAPSTONE-1000-M's rails 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 CAPSTONE-1000-M
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
10% Load	8.5 mV	6.8 mV	12.0 mV	5.3 mV	Pass
20% Load	11.7 mV	7.0 mV	14.0 mV	6.0 mV	Pass
30% Load	13.5 mV	7.1 mV	15.8 mV	7.1 mV	Pass
40% Load	15.3 mV	8.4 mV	16.8 mV	8.1 mV	Pass
50% Load	16.5 mV	7.3 mV	19.0 mV	8.8 mV	Pass
60% Load	18.7 mV	8.3 mV	19.7 mV	9.9 mV	Pass
70% Load	20.3 mV	9.7 mV	21.2 mV	10.6 mV	Pass
80% Load	22.7 mV	11.3 mV	21.5 mV	11.2 mV	Pass
90% Load	24.6 mV	12.7 mV	23.1 mV	12.0 mV	Pass
100% Load	27.2 mV	14.2 mV	23.2 mV	13.3 mV	Pass
110% Load	29.0 mV	15.8 mV	24.0 mV	14.9 mV	Pass
Crossload 1	13.5 mV	9.1 mV	18.7 mV	14.0 mV	Pass
Crossload 2	24.6 mV	12.8 mV	22.8 mV	10.4 mV	Pass

Although old, the platform features very good ripple suppression, so it will provide your system with incredibly clean DC outputs.

Ripple at Full Load

You can see the AC ripple and noise the main rails registered (+12V, 5V, 3.3V, and 5VSB) in the following oscilloscope screenshots. The bigger the fluctuations on the oscilloscope's screen, the bigger the ripple/noise. We set 0.01 V/Div (each vertical division/box equals 0.01 V) as the standard for all measurements.