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Thermaltake Toughpower Grand 750W Power Supply Review


Closer Look:

The Thermaltake Toughpower Grand 750W power supply with its rounded corners, red strip and slightly textured matt black paint finish certainly looks the part.

















The rear of the power supply with its honeycombed holed exhaust grill, mains IEC input connector and red push-type mains on/off switch that you don’t see too often on a power supply. The little grey rectangle in the center, although I haven’t actually fired up the power supply, is I think a small back-lit panel that will light up and show the word Thermaltake when running. I’ll show a photograph later. The modular cable connectors are mounted on the rear face, red for PCI-E and black for peripheral. The cables are sleeved all the way into the power supply but I have to say the quality of the workmanship isn’t very good here with the yellow wires clearly visible and the sleeving too far back.



Not much to see on either side apart from the red stripe that circles the unit.


The specification label is attached to the bottom face and the 140mm cooling fan can be seen on the opposite face with a shield shaped Thermaltake logo at its center.



The captive cable set is minimal with the 20+4 pin motherboard connector and two EPS12V 8 pin connectors, one of which splits to make a 4+4 pin ATX12V connector should it be required. The modular cable set will provide more than enough connectors for most builds and includes two PCI-E 8 pin to 6 pin adapters and a 4 pin ATX12V extension cable should they be required.



I had to include this photograph of the modular cable storage pouch and the damaged caused by just breathing on it; not very well made, this one!


I mentioned the small drawstring bag on the previous page. It actually contains two self adhesive anti-vibration mounts, a Thermaltake case badge and a set of four, what I presume are cable clamps that could prove useful when tidying up the installation.



The cooling fan is a 140mm Yen Sun Tech manufactured Thermaltake TT-1425 rated at 12VDC, 0.54A bearing the model number YD121425HB. A clear plastic shaped baffle has been installed immediately behind the fan to no doubt divert the airflow to where it’s most needed. The layout of the printed circuit board is compact but it’s to be expected when a high quality power supply needs to fit a standard ATX case.



High quality Japanese Nippon ChemiCon 105°C rated electrolytic capacitors have, from what I can see, been used throughout with some solid state devices used on the two DC to DC convertors.



The Thermaltake Toughpower Grand 750W is, like all the Thermaltake power supplies I have tested, packed very well and comes with a good set of accessories. The build quality is overall pretty good, but the cable sleeving could have been executed a little better and I was a little disappointed with the modular cable pouch falling to bits. Minor complaints maybe, so let’s move on and have a look at the technical stuff and see how well it performs.

  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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