Tuniq Ripper 1000W Power Supply - Testing the 1kW Ripper PSU

Article Index
Tuniq Ripper 1000W Power Supply
Info, Features and Specifications
Inside the PSU and Test Setup
Testing the 1kW Ripper PSU

Testing - 237W & 780W: 

We initially plugged the PSU into an EZ PSU Tester 3 in order to power it on for our "idle" measurements.  As noticed below, the voltage rails were fairly stable with no load, but these aren't necessarily indicative of overall load performance.  According to our Kill-a-Watt, the power draw was 9W with a PFC rating of 0.54.  We thought these results would be interesting to include and compare with other power supplies to see how they manage a non-load situation, and how much power the PSU itself will draw.  

Just before we jump into testing it would be helpful to know what each of the +12v rails do.  As near as we can tell, one +12v rail handles the 24-pin connector, another handles the 4-pin/8-pin, Molex and SATA connections, while the other two +12v rails are assigned to each of the PCIe leads.  While we don't have any documentation to back this up, we noticed that these four groups followed the same ripple, noise and average voltage readings.

This test system has undergone an upgrade for this PSU test and we wondered at first if we could push the PSU with a Core i7 920 overclocked to 4.2GHz along with a couple of Radeon 4870 graphics cards in Crossfire.  Initially, we could exceed much more than 600W, but then we found out that Furmark can really make the system scream for mercy and we managed to combine this with Prime95 running a torture test on all eight threads.  This brought power consumption up to 780+ Watts and we even managed to see 812W peak draw at one point.  In addition to the main hardware, the system was cooled down with a modded CoolIT Freezone Elite.  I think it's safe to say that this PSU is being pushed pretty hard.

 12v 1
12v 1
12v 2
12v 2


All of the rails managed to stay above their rated level and the lowest +12v rail dipped to a mere 12.3 even with a 780W load. The 3.3v line dropped a whole 0.01v to 3.4v, while the 5v line stayed rock solid and never fluctuated more than 0.04v.  Click the chart below for full details.

Average Voltage


While the +12v rails looks high at 12.4v - 12.5v, keep in mind that they are only about 3%-4% high and are well within standard ATX specifications.  From top to bottom the voltage on any of the 12v rails never moves more than 0.1v - less that 1%.  It's a very solid showing at our tested loads.  The 5v and 3.3v lines are equally solid and never fluctuate more than 1%.  The voltages on all of the rails are a little high, but remains rock solid.

As far as ripple and noise go, this is where things get interesting.  Standard ATX specifications show that the 3.3v and 5v lines are not to exceed 50mV ripple while the 12v lines are not to vary more than 120mV.  These are pretty standard - and most PSUs adhere to these very well.  Tuniq on the other hand is much more liberal with their tolerance.  They allow 70mV to 100mV on the 3.3v and 5v lines and 120mV to 200mV ripple on the 12v lines with the -12v line acceptable in the 150mV to 200mV range.  While I'm sure that no damage will occur to your system in these ranges, it seems to me that Tuniq doesn't think their PSU can live up to the ATX specifications so they've slackened off their own specifications.

 Ave Ripple


All of the rails stayed within standard ATX specifications and well below the more liberal Tuniq specifications.  Although this PSU does generate a fair bit of electrical noise, it doesn't break any rules and stays within specifications at all times.  The 3.3v and 5v lines on this PSU are very stable and these are the lines that often test out of range.  The 1000W Ripper PSU looks very much like the smaller 750W Potency, but there has obviously been some interior work on this unit and it really seems like it is up to the task - and an improvement over the 750W little sister.



The Tuniq Ripper 1000W PSU is a nice step up from the mid-range PSU lineup.  It pleasantly surprised us with its ability to pump out the wattage and keep our test system running solid at 780W+.  It borders on the extreme, but because of the looser ripple and noise tolerances, I'd be hesitant to rely on this unit in a highly overclocked Core i7 system with three GTX 285 or three HD4890 cards.  While it's not for the most extreme systems, it can certainly power many hardcore computers without breaking a sweat.  Its four 12v rails provide adequate power and are actually rated at a maximum load of 1200W (if you do the math).  What irritates me though is that once again Tuniq claims the PSU is SLI Certified on their website, says SLI Ready on the box, and no SLI information is available at the SLIZone.  I would love it if Tuniq would clear up the confusion and either quit stating SLI Certified or make sure they get listed at the SLI Zone.  



  • Standard ATX Form Factor
  • Very Quiet PSU
  • 3x 6-pin and 3x 6-pin/8-pin PCIe connectors
  • Provides ample power for all but the most extreme systems
  • Fan stays powered on 2 minutes after system shutdown to cool hot PSU components



  • Not sure if it's SLI Certified or if Tuniq has just added a sticker to the box for fun.
  • I'd love to see a modular unit - cables are long and add lots of clutter.



Tuniq has once again delivered a great value PSU as this unit can be found for under $160 online.  For that price, it's certainly a great value for a 1000W unit and provides enough power for almost every system.  At 1kW, it's going to do a good job in many PCs without breaking the bank.

I'd like to thank Tuniq for sending this unit our way for the review.  If you have any questions, comments or general feedback, please feel free to post it in the forum at the "Comments" link below.