Cooler Master V Series 850 W Review

Name: Cooler Master V Series 850 W
Brand: Cooler Master

crmaris

on Oct 23rd, 2013,

in Power Supplies.

Manufacturer: Cooler Master

Performance Rating, Performance per Dollar & Noise Rating »

Ripple Measurements

You will see the ripple levels we measured on the main rails of the V850 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 Cooler Master V850
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	19.1 mV	10.9 mV	9.2 mV	5.0 mV	Pass
40% Load	21.0 mV	11.4 mV	10.5 mV	6.6 mV	Pass
50% Load	22.2 mV	11.6 mV	10.9 mV	7.1 mV	Pass
60% Load	22.4 mV	12.0 mV	10.3 mV	7.5 mV	Pass
80% Load	26.4 mV	12.5 mV	10.8 mV	9.3 mV	Pass
100% Load	31.4 mV	13.2 mV	11.9 mV	11.2 mV	Pass
110% Load	34.2 mV	13.8 mV	12.1 mV	11.9 mV	Pass
Crossload 1	19.4 mV	11.2 mV	10.8 mV	17.2 mV	Pass
Crossload 2	30.4 mV	12.3 mV	9.9 mV	11.4 mV	Pass

Ripple suppression on all rails is jaw dropping. Seasonic platforms have repeatedly proven that they are ripple proof and the V850 is a clear example of this.

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 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.