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Thermaltake Toughpower DPS G RGB 850W PSU Review

In addition to its flagship Titanium line, Thermaltake also equipped the DPS G Gold family with an RGB fan. The highest-capacity model outputting up to 850W is our test subject today.

Ripple Measurements

To learn how we measure ripple, please click here.

The following table includes the ripple levels we measured on the TPG-0850D-R's rails. The limits, according to the ATX specification, are 120mV (+12V) and 50mV (5V, 3.3V, and 5VSB).

Test12V5V3.3V5VSBPass/Fail
10% Load14.3mV3.7mV6.9mV4.4mVPass
20% Load27.9mV5.2mV7.5mV7.4mVPass
30% Load21.4mV4.6mV8.0mV6.2mVPass
40% Load22.0mV5.0mV9.8mV7.6mVPass
50% Load23.7mV5.5mV10.2mV8.9mVPass
60% Load22.8mV6.1mV11.8mV9.5mVPass
70% Load25.1mV7.0mV12.2mV10.7mVPass
80% Load26.2mV7.2mV13.3mV12.0mVPass
90% Load30.1mV9.6mV16.4mV16.5mVPass
100% Load52.1mV10.2mV19.3mV18.0mVPass
110% Load74.3mV11.1mV20.4mV20.1mVPass
Cross-Load 146.1mV7.8mV10.5mV6.1mVPass
Cross-Load 257.7mV8.7mV18.7mV15.7mVPass
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Ripple suppression up to 90% load is excellent at +12V. However, under full load it increases significantly, exceeding 50mV. While that's not disturbingly high, it'd be ideal to see the result under 40mV.

On the other hand, the minor rails' ripple remains low, even during the overload test.

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 0.01 V) 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.