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Ultra X3 1000 Watt Modular Power Supply



How well does this power supply work? The voltage drop from Idle to Load on the 12 volt line was a measly .02 volts. The numbers for the 5 volt and 3.3 volt lines were even better than that, at .01 volts and .001 volts, respectively. Pretty tight voltage regulation under load. I was pleasantly surprised to see how far Ultra has come since I last used one of its power supplies. This experience was a 180 degree turn-around from that experience. The modular design makes cable management a breeze. No matter how hard you try to hide the extra cables with a standard power supply, you always have that bundle of wire that just has nowhere to go. Not anymore! I found that the provided cables had a good mix of the right connectors for my build, preventing any stragglers from hanging in the breeze. Although the cables are different than what you may be used to, they are functional.

While loading the system, I never heard the 135mm fan spool up or down; come to think of it, I never heard it at all. It did show an increase in airflow under load, so I can verify that it does perform as intended, to keep this beast cool by increasing the fan speed under load. The only issue I had with the power supply was the interference of the upper modular connections with my top cooling fan. If you have a smallish mid-tower type of case it may be a tight fit. Whether you are upgrading your power supply or building your dream system with the latest and greatest parts, this power supply delivers the goods. Ultra has married performance with a dazzling finish and has come up with a winner.



  • Modular Design
  • Single 12 volt rail
  • Appearance
  • Temperature-controlled 135mm fan
  • Active PFC
  • Lifetime Warranty
  • Performance under load



  • Size; tight fit in smaller chassis
OCC Gold

  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Closer Look (Accessories, Cables)
  4. Installation
  5. Specifications & Features
  6. Testing (Setup, Idle, Load, Airflow Testing)
  7. Conclusion
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