Corsair CX-M Series 450 W Review - Ideal for Small PCs

Name: Corsair CX-M Series 450 W
Brand: Corsair
Price: 60 USD

crmaris

on Sep 8th, 2022,

in Power Supplies.

Manufacturer: Corsair

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 decent on all rails. Take note that this is a budget unit, so I cannot be extra picky.

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 if overclocked. According to the ATX specification, the ripple limits are 120 mV (+12V) and 50 mV (+5V, +3.3V, and 5VSB).

Ripple Measurements - Corsair CX450M
Test	12V	5V	3.3V	5VSB	Pass/Fail
10% Load	14.1 mV	10.2 mV	12.6 mV	28.5 mV	Pass
20% Load	14.3 mV	8.9 mV	10.0 mV	26.6 mV	Pass
30% Load	14.0 mV	9.4 mV	11.5 mV	25.4 mV	Pass
40% Load	14.2 mV	10.6 mV	12.0 mV	29.2 mV	Pass
50% Load	16.0 mV	10.1 mV	11.1 mV	25.4 mV	Pass
60% Load	17.7 mV	11.3 mV	12.6 mV	27.9 mV	Pass
70% Load	13.0 mV	10.2 mV	11.8 mV	15.4 mV	Pass
80% Load	15.2 mV	13.1 mV	13.9 mV	24.1 mV	Pass
90% Load	15.6 mV	13.0 mV	14.3 mV	18.7 mV	Pass
100% Load	26.5 mV	16.3 mV	17.4 mV	19.5 mV	Pass
110% Load	28.5 mV	12.0 mV	18.1 mV	20.4 mV	Pass
Crossload 1	12.1 mV	9.9 mV	14.4 mV	10.5 mV	Pass
Crossload 2	13.0 mV	10.9 mV	10.8 mV	27.3 mV	Pass
Crossload 3	10.4 mV	7.0 mV	14.9 mV	11.0 mV	Pass
Crossload 4	24.5 mV	11.0 mV	13.0 mV	13.0 mV	Pass