Thermaltake 1kW Toughpower PSU - Testing Continued - Final Thoughts

Article Index
Thermaltake 1kW Toughpower PSU
1kW PSU Specs, Cables and More!
Tests Setup, Methods and Testing
Testing Continued - Final Thoughts
 

400W Tests:

To load things up we overclocked the CPU, overclocked a single 8800GTX graphics card, ran four instances of Folding @ Home for team BCC, and looped 3DMark 06 Firefly benchmark at 1600x1200 with 8x AA and 16x AF to stress the graphics card and the entire system.  Even with all of this going on, we topped out at 403W and consistently pulled 399W - 400W though the Thermaltake Toughpower PSU.  At this load, the PSU matches the input of the X3 and now appears to be as efficient as the smaller 600W PSU we recently reviewed.  Keep in mind that this is still less than half of the PSUs rated output.  Power Factor is measured to be up to 0.99 at this load.

3.3 at 400W
3.3 at 400W
 5v at 400W
5v at 400W
 12v1 at 400W
12v1 at 400W
     
 12v2 at 400W
12v2 at 400W
 12v3 at 400W
12v3 at 400W
 12v4 at 400W
12v4 at 400W

 

Now with a load running on this system and the graphics card, we see that the 12v4 line is getting even noisier and the ripple is more pronounced.  Everything is still well within acceptable range and overall is looking pretty good.  Ripple and noise is less than on the Ultra X3 600W PSU we have reviewed, although at this point the Ultra PSU was loaded to 66% capacity and the Thermaltake Toughpower is sitting around 40% of its rated output.  We see solid voltage performance through this test, although the +5v line and the +3.3v line are dropping off a bit.

Kill-A-Watt
Kill-A-Watt

 

560W Tests:

To load things up a bit further than last time, I managed to mooch Fujitsu's 8800GTX off of him and we ran some SLI action on these GTX's when they were clocked up to 612MHz Core and 1100MHz Memory.  This is approaching 8800Ultra speeds and we believe that we can reach above and beyond that, but didn't want to let system instability cloud the PSU stability we were testing.

 

With Folding @ Home running, 3DMark running and everything overclocked we managed to hit a maximum of 572W draw with this system and as incredible as that sounds, we are only drawing 56% of what this PSU is rated.  If you need more that 1kW, you have some serious money invested in your system.

 3.3v at 560W
3.3v at 560W
 5v at 560W
5v at 560W
 12v1 at 560W
12v1 at 560W
     
 12v2 at 560W
12v2 at 560W
 12v3 at 560W
12v3 at 560W
 12v4 at 560W
12v4 at 560W


With even more load applied we see the voltage levels remain fairly constant on the 12v as we've only lost a maximum of 0.02v on the +12v4 line.  This line is now rippling and noisy to the point of 50mv, and while the chart looks pretty nasty, it's still well within ATX spec of 120mv limit.  Miraculously, the 3.3v line is now very solid and is sitting pretty at 20mv - the best we've seen it though all the tests.

Ave. Voltage

 

Ave. Ripple

Conclusion:

The Thermaltake Toughpower 1kW PSU is a power house.  This PSU comes equipped with four +12v rails and supports 6 PCIe devices - three 6-pin and 3-8-pin.  It is mostly modular and features a nice large fan that provides very good cooling to this unit under normal circumstances.  It is quite solid, although we've seen more ripple from this unit on the 12v4 rail that we have on other power supplies.  Power delivery is not very "noisy" although the the measured ripple is quite obvious from the images above.  Overall, this PSU was rock solid and performed like a champ.  It ran two HDDs, two 8800GTX cards overclocked and an overclocked Q6600 CPU.  Not only that, but it also managed to run several fans, and a Reserator XT cooling system to boot.  All-in-all we could only manage to draw an average of 560W out of this monster and it handled it with ease.

The major drawback of this unit is its size and that its loud.  Because of it's extended length, it may very well not fit in some cases.  It also makes a lot of noise for a PSU with such a large fan.  Other PSU's are almost silent, but this is anything but.  It was easily the loudest component in our test rig.

Pros:

  • Low electrical noise
  • Rated at 1000W continuous
  • Modular with lots of PCIe connections
  • Appears stable with a fairly hefty system

 

Cons:

  • Fan is much louder than it should be.
  • Ripple of 12v4 line increases according to load - may be out of spec at full load.
  • Pricey - Currently available for ~$300CAD 

 

BCCRating

 

Top Pick

For those of you that have pretty massive systems, I would have no trouble recommending this PSU to you.  It was solid all through testing and can handle a high-end gaming system with ease.  It isn't flawless, but it certainly is worth your consideration.  I'd like to thank MemoryExpress for sending down this unit for us to review.  It is currently the biggest PSU we've tested and it was a good time.

Please post your feedback at the comments link below.   We'd love to hear your thoughts.  Don't forget to check out our PSU Testing methods as they will be constantly updated to show how we test PSUs.