Cooler Master MWE Gold Series 750W Power Supplies Review: Page 6 of 7

Posted by Damon Bailey on Thursday, January 24, 2019 - 8:00am

Testing & Performance

CPU: Intel Core i9-9900k

Motherboard: ASUS ROG Strix Z390-E

RAM: 32GB GeIL EVO Spear 3200Mhz

GPU: Nvidia RTX 2080 Ti Founders Edition

SSD: Samsung 960 PRO 2TB

OS: Windows 10 Professional X64

MWE Gold 750W (Non-Modular)

We’ll start out saying we aren’t equipped to do extremely detailed electrical analysis required to pick apart a modern power supply. It takes laboratory grade dedicated equipment so we’ll have to make do with some less precise testing.

Cooler Master MWE Gold Series 750W Power Supply

While we normally use a good Fluke Digital Multi-meter, we’ve found the onboard monitoring solutions in modern motherboards to be quite accurate and able to be easily logged with utilities like HWiNFO.

Cooler Master MWE Gold Series 750W Power Supply

Next, we’ll look at ripple on the rails with our Owon VDS-1022/I Digital USB Oscilloscope.

Cooler Master MWE Gold Series 750W Power Supply

 The +12V rail under a stress test load registers a peak of 120mV peak to peak ripple.

Cooler Master MWE Gold Series 750W Power Supply

 The 5-volt rails fairs about the same at around 120mV of ripple peak but also averages much lower.

Cooler Master MWE Gold Series 750W Power Supply

The 3.3V rail does a decent job with 160mV of ripple. Modern systems typically put very little load on the 3.3V rail.
 

MWE Gold 750W Fully Modular

Cooler Master MWE Gold Series 750W Power Supply

While we normally use a good Fluke Digital Multi-meter, we’ve found the onboard monitoring solutions in modern motherboards to be quite accurate and able to be easily logged with utilities like HWiNFO.

Cooler Master MWE Gold Series 750W Power Supply

Next, we’ll look at ripple on the rails with our Owon VDS-1022/I Digital USB Oscilloscope.

Cooler Master MWE Gold Series 750W Power Supply

 The +12V rail under a stress test load registers a peak of 160mV peak to peak ripple. While not the best on the market, this is a good result.

Cooler Master MWE Gold Series 750W Power Supply

 The 5-volt rails fairs about the same at around 160mV of ripple peak but also averages much lower.

Cooler Master MWE Gold Series 750W Power Supply

The 3.3V rail does a great job with only 160mV of ripple. This is really pushing the limits of what our lower cost O-scope can even pick up. Modern systems typically put very little load on the 3.3V rail.

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