Skip to main content

Cooler Master MasterWatt Maker 1200 PSU Review

Cooler Master finally released its MasterWatt Maker PSU, which was designed for true enthusiasts. Sporting Titanium-class efficiency, a digital interface, and other exotic features, we didn't expect an affordable price. But $450 looks insane!

Ripple Measurements

To learn how we measure ripple, please click here.

The following table includes the ripple levels we measured on the MasterWatt Maker 1200's rails. The limits, according to the ATX specification, are 120mV (+12V) and 50mV (5V, 3.3V and 5VSB).

Test12V5V3.3V5VSBPass/Fail
10% Load10.5mV6.1mV6.7mV4.1mVPass
20% Load11.7mV6.6mV7.1mV4.7mVPass
30% Load13.0mV7.6mV8.9mV5.8mVPass
40% Load14.4mV8.4mV9.6mV5.6mVPass
50% Load16.2mV9.4mV10.9mV6.3mVPass
60% Load14.0mV9.9mV13.1mV7.1mVPass
70% Load15.0mV12.2mV13.7mV8.1mVPass
80% Load15.6mV12.6mV15.5mV8.4mVPass
90% Load17.4mV14.0mV16.1mV10.2mVPass
100% Load19.3mV20.6mV22.7mV13.6mVPass
107% Load20.5mV22.2mV23.5mV15.1mVPass
Cross-Load 111.5mV7.3mV9.8mV4.5mVPass
Cross-Load 219.1mV19.4mV22.3mV12.5mVPass
Image 1 of 4

Image 2 of 4

Image 3 of 4

Image 4 of 4

Ripple suppression is very good overall, though Corsair's digital AX1500i fares even better. Still, we're pleasantly surprised by these numbers since we aren't used to seeing such low ripple from Enhance's implementations.

Ripple Oscilloscope Screenshots

The following oscilloscope screenshots illustrate the AC ripple and noise registered on the main rails (+12V, 5V, 3.3V and 5VSB). The bigger the fluctuations on the screen, the bigger the ripple/noise. We set 0.01V/Div (each vertical division/box equals 0.01V) as the standard for all measurements.

Ripple At Full Load

Image 1 of 4

Image 2 of 4

Image 3 of 4

Image 4 of 4

Ripple At 110-Percent Load

Image 1 of 4

Image 2 of 4

Image 3 of 4

Image 4 of 4

Ripple At Cross-Load 1

Image 1 of 4

Image 2 of 4

Image 3 of 4

Image 4 of 4

Ripple At Cross-Load 2

Image 1 of 4

Image 2 of 4

Image 3 of 4

Image 4 of 4

Aris Mpitziopoulos
Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.