Thermaltake Toughpower Grand 1200 W Review

Name: Thermaltake Toughpower Grand 1200 W
Brand: Thermaltake

crmaris

on Aug 3rd, 2011,

in Power Supplies.

Manufacturer: Thermaltake

Value & Conclusion »

Ripple Measurements

In the following table you will find the ripple levels that we measured on the main rails of TPG-1200M. According to ATX specification the limits are 120 mV (+12V) and 50 mV (5V & 3.3V).

Ripple Measurements
Test	12 V	5 V	3.3 V	Pass/Fail
20% Load	48.8 mV	23.6 mV	21.4 mV	Pass
40% Load	56.8 mV	27.6 mV	23.2 mV	Pass
50% Load	59.2 mV	30.4 mV	24.8 mV	Pass
60% Load	68.2 mV	32.8 mV	26.2 mV	Pass
80% Load	74.8 mV	36.8 mV	28.8 mV	Pass
100% Load	86.6 mV	40.2 mV	30.4 mV	Pass
Crossload 1	65.2 mV	37.8 mV	31.8 mV	Pass
Crossload 2	83.4 mV	35.4 mV	27.4 mV	Pass

Ripple/noise suppression is terrible. Near 90 mV at +12V and 40 mV at 5V definitely is not what we expected from a PSU that costs $300 and belongs in the high-end category, at least price wise. Sirfa has lots of work to do in this design, if they want it to perform as it should and Thermaltake ought to rigorously test the current platform before deciding to use it for their flagship PSU.

Ripple at Full Load

In the following oscilloscope screenshots you can see the AC ripple and noise that the main rails registered (+12V, 5V, 3.3V). The bigger the fluctuations on the oscilloscope's screen the bigger the ripple/noise. For all the following screenshots we used 0.02 V/Div (each vertical division/box equals to 0.02V) as standard.