Larkooler KU3-241 Watercooling Kit



Test Rig

  • Case: Fractal Design XL
  • Motherboard: Gigabyte GA-MA785GMT-UD2H
  • Processor (CPU): AMD Phenom II X2 555 BE
  • Memory (RAM): GeIL Ultra Plus 2133MHz CL9 2x2GB
  • Graphics card (GPU): Sapphire HD5850 Xtreme 1GB
  • Hard drives (HDDs): 2x WD 250GB 16MB Caviar SE, 1xWD 500GB Black
  • Power Supply Unit (PSU): Zalman ZM600-HP

Installation of the kit is done easily by following the manuals of the components. The only annoying part was getting the tubes right through the PCI slot holder, but most mid-segment and upward cases have separate and wider tube holes, fit with rubber (the same goes for this case but to review the product as a whole I’d have to take the hard lane).

Testing and Results

To test CPU coolers we boot the PC up to Windows and measure temperatures under idle and load state, using professional software.

For idle testing, we simply let the rig sit doing absolutely nothing for 30 minutes and take the most representative temperature of the last 10 minutes. The same is used for the load testing, but instead of letting the PC do nothing; we load all cores to 100% using multiple instances of SuperPi2004 and let the program(s) run for at least 10 minutes.

The whole system was setup for optimal air flow with multiple 140mm intake and exhaust fans, as is recommended for any system.

These results are nothing short from amazing. With an environment temperature around 23 degrees Celcius, the kit manages to keep the CPU well under 40c in idle mode. When stressing the system to 100% load until it reaches it’s maximum stable temperature, the Larkooler KU3-241 doesn’t cease to amaze, even the overclocked power-hungry quad core easily remains under 60c.

If that didn’t do it for you, then I can only say that this kit is inaudible. It’s completely silent. It’s like a flake of snow; it’s there, it works, but you can’t hear it. It’s one-of-a-kind.

Pricing and Availability

The Larkooler KU3-241 retails for about €230.- but isn’t easy to find. So far I’ve only come up with a handful of webshops that sell the kit in Europe. I believe international shipping shouldn’t be a biggy if you’re planning on buying such an excellent kit, so it will be available for anyone that really wants it.

Important to note is that any custom build watercooling set will cost you at least this much; if not more. Even though this set ‘only’ sports a 2x120mm radiator, it still performs like a boss and has extensive upgrade options just like any custom set you could build yourself; but would cost you much more time and effort to get to.

That said, Larkooler is a Taiwanese company and doesn’t yet even has its site translated to English; if they really want to penetrate the western market I suggest they get to it!

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Last modified: May 12, 2011

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One Response to :
Larkooler KU3-241 Watercooling Kit

  1. Why do we need to regularly maintain our water cooler?

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