In Win Glacier 900 W Review

Name: In Win Glacier 900 W
Brand: InWin

crmaris

on Sep 26th, 2011,

in Power Supplies.

Manufacturer: InWin

Value & Conclusion »

Ripple Measurements

In the following table you will find the ripple levels that we measured on the main rails of IRP-GOL900. According to ATX specification the limits are 120 mV (+12V) and 50 mV (5V, 3.3V and 5VSB).

Ripple Measurements In Win IRP-GOL900
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	14.7 mV	10.8 mV	12.7 mV	7.4 mV	Pass
40% Load	16.8 mV	12.5 mV	13.7 mV	10.0 mV	Pass
50% Load	18.1 mV	14.4 mV	16.0 mV	12.2 mV	Pass
60% Load	20.4 mV	13.9 mV	17.1 mV	72.9 mV	Fail
80% Load	23.3 mV	14.8 mV	18.3 mV	17.0 mV	Pass
100% Load	29.5 mV	17.6 mV	22.8 mV	20.3 mV	Pass
Crossload 1	26.9 mV	14.8 mV	19.2 mV	10.6 mV	Pass
Crossload 2	22.0 mV	16.9 mV	20.5 mV	15.4 mV	Pass

Ripple/noise suppression in general is very good, as we expected from a high-end unit. For some weird reason at 60% of max rated capacity, our logging program caught a ripple spike on the 5VSB up to 72.86 mV. Here we should note that most of the time 5VSB registered arount 13 mV ripple at this load level but every 4-5 sec almost instantly a ripple spike around 70 mV p-p occurred. Unfortunately for the unit this spike was enough for our ripple logging program to mark it as fail at the specific test.

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 0.01V) as standard.