Xilence XQ Series 850 W Review

Name: Xilence XQ Series 850 W
Brand: Xilence

crmaris

on May 21st, 2012,

in Power Supplies.

Manufacturer: Xilence

Performance Rating & Performance per Dollar »

Ripple Measurements

In the following table you will find the ripple levels that we measured on the main rails of the XQ Series 850W. According to ATX specification the limits are 120 mV (+12V) and 50 mV (5V, 3.3V and 5VSB).

Ripple Measurements Xilence XQ Series 850W
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	11.0 mV	11.7 mV	12.8 mV	8.7 mV	Pass
40% Load	17.6 mV	12.5 mV	17.9 mV	12.6 mV	Pass
50% Load	20.3 mV	14.3 mV	23.5 mV	13.5 mV	Pass
60% Load	23.6 mV	14.4 mV	27.7 mV	15.6 mV	Pass
80% Load	28.9 mV	16.8 mV	32.9 mV	22.8 mV	Pass
100% Load	34.7 mV	17.6 mV	33.2 mV	31.7 mV	Pass
Crossload 1	22.2 mV	25.1 mV	45.6 mV	13.3 mV	Pass
Crossload 2	28.9 mV	10.6 mV	13.6 mV	26.7 mV	Pass

Ripple suppression overall is pretty good, especially at +12V where it matters most. However at CL1 test we noticed high ripple at 3.3V and increased noise at 5V, a clear indication that 130W out of these two rails is very close to their limits. Nevertheless it is highly unlikely, if not impossible, that a contemporary system will ever reproduce the CL1 test scenario.

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.