FSP PSU Roundup - 500W, 700W and 1kW - Testing the 1000W Kingcraft PSU

Article Index
FSP PSU Roundup - 500W, 700W and 1kW
Testing the 500W Blue Storm II
FSP 700W FX-Epsilon PSU
Testing the 700W FX-Epsilon PSU
FSP 1000W Kingcraft PSU
Testing the 1000W Kingcraft PSU
FSP PSU Roundup Final Thoughts
 

Test Setup:

While we don't have a perfect test setup for testing power supplies, we do not rely on software programs to tell us how the PSU is doing.  We have an oscilloscope that we use for testing and we measure power draw through a P3 Kill-A-Watt.  Our power is filtered through an APC UPS and we put these units to the test in a real-world scenario with a high-end test machine.

  • Intel Q6600 CPU @ 3.2GHz
  • nVidia 780i Motherboard
  • Crucial Ballistix Tracer 2GB Kit
  • 3x 8800GTX in Tri-SLI
  • 2 x 500GB Seagate HDDs
  • Freezone Elite

 

Testing:

In this PSU roundup we're going briefly through the numbers individually and will lay out how these performed at the end of the review.  You can click any of the image below and then click the next button to go through the gallery and view all of the pictures as we'll only be including a few of them for reference as we go along.

As soon as we plugged in this PSU my fears were realized - it is loud.  Even when running a non-load test it measures 52.5 dBA at a distance of 1 meter.  Ouch. 

No-Load (9W) Tests:

 3.3v 9W
3.3v 9W
5v 9W
5v 9W
12v1 9W
12v1 9W
     
 12v2 9W
12v2 9W
 12v3 9W
12v3 9W
 12v4 9W
12v4 9W

 

While this PSU has very little ripple in the non-load situation, there is some noise than the other PSUs as you can see above.

380W Load Tests:

 3.3v 380W
3.3v 380W
5v 380W
5v 380W
 12v1 380W
12v1 380W
     
 12v2 380W
12v2 380W
 12v3 380W
12v3 380W
 12v4 380W
12v4 380W

 

Under a moderate load we see the +12v1 rail pretty noisy and both the 3.3v and 5v rails exceed the 50mV specification.  Please keep in mind that we are averaging 16 samples of data, and if we back this off to 4 samples, the noise averages much greater.  It's because of our precise test equipment that we see higher numbers that other sites.  While this may be harsher than other sites, our results with other Power Supplies are comparable as we keep the platform and test methods consistent.

 

695W Load Tests:

 3.3v 695W
3.3v 695W
 12v1 695W
5v 695W
12v1 695W
12v1 695W
     
 12v2 695W
12v2 695W
 12v3 695W
12v3 695W
 12v4 695W
12v4 695W

 

This setup involved 3 8800GTX cards and an overclocked Q6600 cooled by a Freezone Elite.  We managed to pull over 750W at times but were able to run consistently at 695W for testing.  System stability was good but with the large amounts of noise we've seen from the voltage rails as well as the PSU fan, it's hard to love this 1000W unit.

On the last page we'll compare all the numbers and draw some conclusions.