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Tuniq Potency 550W Review

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Environmental Factors:

With 80 PLUS certification, on which I have a few things to say later, and a high power factor, the Tuniq Potency will play a small part in cutting your energy bills. The packaging material usage is minimal, but I think this is more due to keeping costs down than a concern for the environment. Why use bubble wrap, though, when alternative bio-degradable materials are available?

Price Per Watt:

Power Supply Tuniq Potency 550W at $89.99 = $0.16/Watt (August 2008)

What disappointed me most with the Tuniq Potency 550W was its failure to comply with its 80 PLUS certification. The user manual for this power supply quotes, in black and white, a typical efficiency of 70%. This contradicts the 80 PLUS claim straight away, so what is one meant to believe? Additionally, it claims SLI Certification and claims support for an Nvidia 9800 GX2. I was, however, unable to verify this by cross-referencing Nvidia's list of certified components, although a 9800 GX2 technically has two GPUs that may qualify it.

All things considered, I would still recommend the Tuniq Potency 550W. The efficiency was still acceptable, and the DC quality was excellent. If you are in the market for a power supply in the 500-600W bracket at a reasonable price, then try this one out - I'm sure you won't be disappointed.



  • Excellent all around DC quality
  • Active PFC
  • Good selection of connectors and adapters
  • Quiet operation
  • 100,000 hour MTBF
  • Three year warranty



  • Failure to meet the 80 Plus specification
OCC Silver

  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specifications & Features
  4. Testing: Load Testing 110VAC, 230VAC
  5. Testing: Efficiency and Power Factor
  6. Testing: Temperature, Noise Levels, and Fan Speeds
  7. Conclusion
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