PC Power & Cooling Silencer MK III 1200 W Review

Name: PC Power & Cooling Silencer MK III 1200 W
Brand: PC Power & Cooling

crmaris

on Aug 28th, 2012,

in Power Supplies.

Manufacturer: PC Power & Cooling

Performance Rating & Performance per Dollar »

Ripple Measurements

In the following table, you will see the ripple levels that we measured on the main rails of the MK3S1200. According to the ATX specification, the limits are 120 mV (+12V) and 50 mV (5V, 3.3V, and 5VSB).

Ripple Measurements PC Power & Cooling MK3S1200
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	8.8 mV	11.1 mV	6.8 mV	5.7 mV	Pass
40% Load	12.8 mV	14.5 mV	9.8 mV	6.9 mV	Pass
50% Load	14.5 mV	15.8 mV	12.3 mV	7.8 mV	Pass
60% Load	17.4 mV	17.0 mV	18.4 mV	10.7 mV	Pass
80% Load	22.5 mV	17.9 mV	19.9 mV	12.1 mV	Pass
100% Load	26.9 mV	20.2 mV	25.1 mV	13.8 mV	Pass
Crossload 1	9.7 mV	15.4 mV	10.6 mV	5.6 mV	Pass
Crossload 2	25.1 mV	15.6 mV	19.1 mV	11.7 mV	Pass

Ripple suppression is marvelous with ripple at +12V rail never exceeding 30 mV and ripple is, on the minor rails, at worst case, around half of the limit. The 5VSB rail also delivers very clean output. In general this unit is, like all Super Flower platforms we have tested in the past, ripple proof even under severe conditions, something that all overclockers/enthusiast users out there will highly appreciate.

Ripple at Full Load

In the following oscilloscope screenshots, you can see the AC ripple and noise that 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 to 0.01 V) as standard.