Channel Well Technology CSX 850M-G Review - The first PCIe 5.0 ready SFX PSU

Name: Channel Well Technology CSX 850M-G
Brand: Channel Well Technology

crmaris

on Sep 2nd, 2022,

in Power Supplies.

Manufacturer: Channel Well Technology

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

Ripple Measurements - CWT CSX 850M-G
Test	12V	5V	3.3V	5VSB	Pass/Fail
10% Load	6.6 mV	15.5 mV	13.5 mV	9.4 mV	Pass
20% Load	17.9 mV	15.9 mV	10.5 mV	8.8 mV	Pass
30% Load	14.3 mV	18.3 mV	9.3 mV	10.4 mV	Pass
40% Load	12.6 mV	17.3 mV	19.2 mV	8.9 mV	Pass
50% Load	13.7 mV	22.6 mV	24.9 mV	10.6 mV	Pass
60% Load	15.3 mV	18.6 mV	15.5 mV	11.0 mV	Pass
70% Load	17.5 mV	21.7 mV	14.5 mV	12.3 mV	Pass
80% Load	18.7 mV	20.9 mV	17.1 mV	12.7 mV	Pass
90% Load	21.2 mV	22.5 mV	18.8 mV	12.6 mV	Pass
100% Load	30.6 mV	21.5 mV	24.2 mV	17.8 mV	Pass
110% Load	32.6 mV	31.4 mV	25.1 mV	20.4 mV	Pass
Crossload 1	27.0 mV	12.7 mV	13.6 mV	11.9 mV	Pass
Crossload 2	22.2 mV	19.1 mV	7.5 mV	11.6 mV	Pass
Crossload 3	15.6 mV	13.5 mV	27.5 mV	11.4 mV	Pass
Crossload 4	26.4 mV	19.0 mV	20.8 mV	13.9 mV	Pass