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Thermaltake Toughpower Grand 750W Power Supply Review



Temperature, Noise Levels and Fan Speeds:

I am not going to give a pass or fail in this section, as the ATX12V V2.2 does not really have any references on which to base a decision.

Temperatures are purely for information only, as there are too many variables involved when installed in a case, which, by the way, it wasn't. Ambient temperature, processor cooling efficiency and case cooling fans all play their part on the temperature of the air entering the power supply, and consequently the temperature of the air leaving it. No valid conclusions can be made from this test.














Thermaltake Toughpower Grand 750W (TPG-750MCUS) Temperature & Fan Speeds
Supply = 110VAC/230VAC
DC Loading(W)
Temp In (°C)
Temp Out (°C)
Δ Temp (°C)
Fan Speed (RPM)


The Thermaltake Toughpower Grand 750W remained very quiet throughout testing due to a relatively low maximum fan speed of only 1031 RPM at full load. The cooling fan was very slow to respond during testing and at one point I thought it was never going to ramp up at full load and when it did, it only attained a relatively low speed of 1031 RPM which goes a long way to explaining, what are, higher temperatures than I see on most other power supplies in this class. Cool and quiet at 400W loading, very quiet at full load but a little on the warm side.

Perhaps this photograph isn't in the right section but I had to include it somewhere. The photograph below shows the rear of the Thermaltake Toughpower Grand 750W power supply in the dark. The mains on/off switch used on the Grand power supply is unusual in that it is an illuminated push switch which lights up when the mains is connected and the switch is pushed into the on position. Do you remember the small panel I mentioned? When the power supply is activated via the PC on/off switch a small red back-lit panel is switched on which reveals the word Thermaltake on the rear of the power supply. It isn't very bright and the room lighting needs to be very subdued to make it, and the red glow inside the power supply, stand out.

  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specification & Features
  4. Testing: DC Voltage Load Regulation
  5. Testing: Efficiency, Power Factor & DC Quality
  6. Testing: Temperature, Noise Level & Fan Speed
  7. Conclusion
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