FSP Aurum PT Series 1200 W Review

Name: FSP Aurum PT Series 1200 W
Brand: FSP

crmaris

on Oct 15th, 2014,

in Power Supplies.

Manufacturer: FSP

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

Ripple Measurements

You will see the ripple levels we measured on the PT-1200FM'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 - FSP FSP
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
10% Load	21.4 mV	4.3 mV	11.4 mV	10.0 mV	Pass
20% Load	25.3 mV	4.7 mV	11.6 mV	11.1 mV	Pass
30% Load	29.2 mV	4.6 mV	12.1 mV	11.0 mV	Pass
40% Load	31.4 mV	4.7 mV	12.6 mV	13.3 mV	Pass
50% Load	30.9 mV	5.2 mV	12.6 mV	11.6 mV	Pass
60% Load	29.3 mV	5.0 mV	13.3 mV	12.7 mV	Pass
70% Load	30.4 mV	5.7 mV	17.8 mV	12.2 mV	Pass
80% Load	31.8 mV	5.4 mV	14.2 mV	13.7 mV	Pass
90% Load	34.3 mV	6.3 mV	13.5 mV	14.7 mV	Pass
100% Load	37.0 mV	7.1 mV	15.4 mV	16.6 mV	Pass
110% Load	40.7 mV	8.0 mV	19.6 mV	20.2 mV	Pass
Crossload 1	23.9 mV	4.5 mV	9.6 mV	10.4 mV	Pass
Crossload 2	36.3 mV	7.4 mV	15.4 mV	13.1 mV	Pass

Ripple suppression was very good, and we could easily call it excellent hadn't we tested Super Flower's or Delta's products. However, 5V ripple control definitely incredible. FSP's design with its Japanese polymer and electrolytic caps did pretty well in these tests (and not only).

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.