Seasonic Core GX Series 500 W Review

Name: Seasonic Core GX Series 500 W
Brand: Seasonic
Price: 82 USD

crmaris

on Apr 15th, 2022,

in Power Supplies.

Manufacturer: Seasonic

Efficiency »

Test Setup

Primary Rails Load Regulation

The following charts show the voltage values of the main rails, recorded over a range from 60 W to the maximum specified load, and the deviation (in percent) for the same load range. Tight load regulation is essential for every power supply because it allows for constant voltage levels despite changes in load.

5VSB Regulation

Load regulation is very tight at +12 V, but not on the minor rails.

Ripple Measurements

Ripple represents the AC fluctuations (periodic) and noise (random) found in the DC rails of PSUs. Ripple significantly decreases the life span of capacitors because it increases their temperature; a 10 °C increase can cut into a capacitor's life span by up to 50 percent. Ripple also plays a vital role in overall system stability, especially when it is overclocked. According to the ATX specification, the ripple limits are 120 mV (+12V) and 50 mV (+5V, +3.3V, and 5VSB).

Ripple Measurements - Seasonic Core GX-500
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
10% Load	7.3 mV	6.9 mV	5.3 mV	8.0 mV	Pass
20% Load	9.1 mV	7.6 mV	5.8 mV	8.5 mV	Pass
30% Load	10.6 mV	7.5 mV	6.0 mV	9.3 mV	Pass
40% Load	10.7 mV	7.8 mV	6.3 mV	8.8 mV	Pass
50% Load	11.8 mV	8.3 mV	6.5 mV	9.0 mV	Pass
60% Load	12.1 mV	9.0 mV	6.6 mV	11.2 mV	Pass
70% Load	14.3 mV	9.3 mV	7.1 mV	9.9 mV	Pass
80% Load	15.2 mV	10.8 mV	13.7 mV	14.8 mV	Pass
90% Load	17.6 mV	11.0 mV	13.6 mV	13.2 mV	Pass
100% Load	30.3 mV	14.1 mV	14.4 mV	13.9 mV	Pass
110% Load	31.1 mV	14.2 mV	15.4 mV	16.7 mV	Pass
Crossload 1	15.3 mV	15.2 mV	15.4 mV	9.9 mV	Pass
Crossload 2	28.2 mV	9.5 mV	7.1 mV	10.4 mV	Pass

Ripple suppression is excellent on the minor rails and good enough at +12 V. As you can see in the table, there is a significant increase in ripple at +12 V from the 90% to full load test, which shows that I pushed the platform hard.