SilentiumPC Supremo M1 700 W Review

Name: SilentiumPC Supremo M1 700 W
Brand: SilentiumPC

crmaris

on Apr 23rd, 2014,

in Power Supplies.

Manufacturer: SilentiumPC

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

Ripple Measurements

You will see the ripple levels we measured on the main rails of the Supremo M1-700 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 - SilentiumPC Supremo M1-700
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	21.6 mV	13.3 mV	15.6 mV	22.2 mV	Pass
40% Load	28.6 mV	19.0 mV	21.3 mV	26.3 mV	Pass
50% Load	35.6 mV	21.9 mV	23.6 mV	28.7 mV	Pass
60% Load	28.6 mV	27.3 mV	29.9 mV	31.8 mV	Pass
80% Load	35.6 mV	33.1 mV	32.9 mV	38.4 mV	Pass
100% Load	48.3 mV	41.2 mV	39.3 mV	48.5 mV	Pass
107% Load	51.0 mV	43.1 mV	41.6 mV	50.8 mV	Fail
Crossload 1	26.9 mV	18.4 mV	18.8 mV	12.3 mV	Pass
Crossload 2	38.9 mV	38.2 mV	37.9 mV	38.7 mV	Pass

We expected better ripple results from such a high-end platform. Ripple should, for starters, be below 40 mV on the +12V rail, and both minor rails should stay under 30 mV or, ideally, 20 mV. As for the 5VSB rail: It was on the verge of failing the full-load test and actually did so in our overload test. High Power definitely needs to deliver better ripple suppression to keep up with the competition.

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 each measurement.