Seasonic X-460FL 460 W Review

Name: Seasonic X-460FL 460 W
Brand: Seasonic

crmaris

on May 13th, 2011,

in Power Supplies.

Manufacturer: Seasonic

Value & Conclusion »

Ripple Measurements

In the following table you will find the ripple levels that we measured on the main rails of X-460FL. According to ATX specification the limits are 120 mV (+12V) and 50 mV (5V & 3.3V).

Ripple Measurements
Test	12 V	5 V	3.3 V	Pass/Fail
20% Load	5.8 mV	8.2 mV	5.4 mV	Pass
40% Load	19.6 mV	8.4 mV	5.6 mV	Pass
50% Load	17.8 mV	8.6 mV	5.8 mV	Pass
60% Load	17.4 mV	8.6 mV	5.8 mV	Pass
80% Load	17.2 mV	8.8 mV	6.0 mV	Pass
100% Load	17.4 mV	8.8 mV	6.2 mV	Pass
Crossload 1	21.8 mV	8.8 mV	6.0 mV	Pass
Crossload 2	17.4 mV	9.0 mV	6.2 mV	Pass

Ripple/noise suppression, as usual for a Seasonic PSU, is excellent. The quality of the DC outputs on this PSU is extraordinary!

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). 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 to 0.01V) as standard but sometimes we are forced to use 0.02 V/Div, meaning that the fluctuations will look smaller but actually this wont be the case.