500W-1000W Power Supply Review Roundup – BFG, NesteQ, Rocketfish, Zalman

• SilentPCReview: Zalman ZM1000-HP: Quiet KiloWatt PSU:
  
  

  “Its electrical performance is impeccable in almost every way: The highest measured efficiency, extremely tight voltage regulation, etc. This Zalman is really at the cutting edge of PSU performance. The Enermax Galaxy 1000W PSU mentioned earlier shows its age in comparison; the past year has seen a lot of progress in PSU design and performance. The single fly in the ointment is the higher-than-normal AC ripple. As pointed out earlier, however, we don't really think it's that significant because the out-of-spec ripple is in the less important 3.3V line, and it occurs at such a high output.”

  
  Click here to read the full review.
  
  
  
• techPowerUp: BFG ES-800 800W Power Supply:
  
  

  “BFG did a good job engineering the BFG ES-800 power supply. A big part of that can be attributed to Jon Gerow aka JonnyGuru who recently joined BFG's team to work on their power supply line of products. In our testing we saw an amazing efficiency of 84.9%, which is most probably a result of the "Frequency Conversion Technology" in this unit. I am confident there are other load scenarios where the PSU can easily break the magic 85% mark. All three voltages showed good stability in our load test, the ripple voltage was also low.”

  
  Click here to read the full review.
  
  
  
• Virtual-Hideout: NesteQ ECS5001 500w Modular PSU Review:
  

  “The voltages were actually very steady with miniscule variance being reported by my trusty meter. The +12V rails maintained a strong level ranging between 12.09 to 12.13 Volts at it's highest load tests. And the +3.3V and +5V rail held true the entire time never going below specs. This is a tough feat when you push a PSU to 100% and beyond.
  
  How much higher can the power supply go? Well, at 525 Watts, the rails were 11.98, 5.04, and 3.35 Volts respectively again with very steady voltages. This was the maximum wattage the PSU would produce. Anything higher and the protection circuitry would power down the PSU.”

  
  Click here to read the full review.