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Topower 1000W Gold Power Supply Review




Price Per the Watt:

Power Supply Topower 1000W at $171.99 = $0.17/Watt (07/2011)


First impressions of the Topower 1000W power supply aren't good. The packaging is to say the least basic and it's not unreasonable to expect more than a single layer of bubble wrap between the power supply and the outside world. The accessories set consists of a power cord and user manual but no power supply mounting screws, at least not in the review sample. There are also minor inaccuracies in the information on the packaging that include a feature list stating the power supply is 82 Plus Bronze certified (should be 80 Plus Gold) and includes a SATA and PATA combo cable which isn't the case. These may be minor points but the technical specifications and features need to be correct but part of the problem could be a box used for other power supply products.

Whilst not the best power supply out there the Topower 1000W is far from the worst but its performance fell a little short of what is expected from high end enthusiast units. The DC voltage load regulation is good but when combined with borderline AC ripple/noise and poorer than expected efficiency it equates to a good but not great power supply. The AC ripple/noise levels were borderline and if measured under different circumstances, lower ambient temperature or slightly lower mains input voltage for example, it may have even scraped a pass but high-end power supplies are expected to be well under the limits set down by the ATX12V V2.2 specification and not borderline. Efficiency levels are far lower than expected and didn't reflect its claimed 80 Plus Gold status following the OCC power supply testing methodology, but because the testing protocol couldn't be exactly replicated it would be unfair to judge it too harshly.

The Topower 1000W power supply isn't a bad power supply, it just isn't up to the same standard as other high-end units tested by OCC. However, it's certainly far better than the vast majority of power supplies available to buy at the moment. The DC quality is satisfactory with efficiency that's still high but not as high as specified following the OCC power supply testing methodology. The power supply could, I'm sure, run a PC for many trouble free years, but it's not quite up there with the best.


  • Satisfactory DC voltage load regulation
  • 80 Plus Gold
  • Plenty of connectors



  • Poor packaging
  • AC ripple/noise
  • Rated working temperature of 25°C
  • Minor inaccuracies in packaging technical information

  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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