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Corsair CX750M PSU Review

Corsair's CX line is aimed at users with limited budgets who still want a branded, reliable, and well-supported PSU. Today we're reviewing the second-strongest member of the family, the CX750M.

Ripple Measurements

To learn how we measure ripple, please click here.

The following table includes the ripple levels we measured on the CX750M's rails. The limits, according to the ATX specification, are 120mV (+12V) and 50mV (5V, 3.3V and 5VSB).

Test12V5V3.3V5VSBPass/Fail
10% Load5.2mV9.0mV7.1mV6.5mVPass
20% Load6.4mV9.7mV7.7mV7.0mVPass
30% Load8.9mV10.8mV8.3mV8.6mVPass
40% Load10.6mV11.8mV8.5mV8.9mVPass
50% Load12.9mV12.9mV9.8mV10.2mVPass
60% Load14.2mV13.2mV11.2mV10.7mVPass
70% Load16.0mV14.9mV11.3mV11.8mVPass
80% Load18.7mV15.9mV12.9mV13.5mVPass
90% Load21.4mV16.8mV14.2mV13.6mVPass
100% Load23.8mV20.3mV16.1mV14.8mVPass
110% Load25.9mV23.4mV16.4mV16.1mVPass
Cross-Load 112.6mV18.1mV13.1mV12.0mVPass
Cross-Load 221.3mV15.7mV13.2mV13.8mVPass
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Ripple suppression is great, especially when we take this product's price into account.

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 0.01 V/Div (each vertical division/box equals 0.01V) as the standard for all measurements.

Ripple At Full Load

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Ripple At 110-Percent Load

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Ripple At Cross-Load 1

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Ripple At Cross-Load 2

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