Fractal Designs utbyggbara vattenkylning Kelvin på väg till svenska butiker

Det är väl inte svårare att öppna fill-porten och kolla? Precis som på den gamle varianten av Swiftechs H220.

Behållaren lär inte vara så stor och luftbubblor kan ligga och lura ett bra tag efter man är "klar". Så nån stackars sate kanske tänkte att "nu var det fullt", sen pajar pumpen några dagar/veckor efter PGA dåligt med vätska i loopen...

Cooling performance is very good, though there is a trade-off in terms of noise. During use, we found the Kelvin S24 pump to be audible at all times. The constant hum probably won't be noticed in an enthusiast rig, but if you're trying to build a PC that's as close to silent as possible, Fractal's pump isn't going to be ideal.

Reducing the pump voltage via BIOS does minimise and almost eliminate the noise, but in doing so performance is sacrificed and Fractal's recommendation is to stick to the default 12V. "Changing the pump speed or voltage may hinder performance as it may result in the pump not working forcefully enough to run the system as best it can," says the company's official documentation.

Tyvärr verkar det som att ljudnivån på pumpen är ganska dålig. Frågan är hur pass mycket prestanda man förlorar om man sänker spänningen till pumpen.

Fractal Design Kelvin S24

http://hexus.net/tech/reviews/cooling/78029-fractal-design-ke...

[December 09, 2014]

Thank you, HEXUS, for reviewing the Kelvin S24 and awarding it as ‘HEXUS Approved’! It’s reassuring to know that professionals like your team recognize our products in high regard.

In regards to the reported pump noise at 12V, we would like to clarify this as one may run the system ‘as is’ in a more silent environment (at 9V) but also have the ability and convenience of running the pump at 12V and expanding your system, giving users more options.

The pump speed is set at 12V because at any lower level the system might not be able to handle additional components like GPU (expandability). We have focused efforts to silence the pump through noise insulation materials etc, but it is not possible to completely remove the noise. If you look at other models (systems that are expected to handle more heat output basically), they may also have relatively noisy pumps because running them at lower speeds reduces the cooling performance significantly and also puts the life time of the product at risk.

At 12V, the pump is going to emit some sound. However, the user has the opportunity to lower the voltage under 12V and the pump will be much more silent. The tradeoff is that you may lose performance and cannot expand with GPUs etc. We have been very adamant about communicating that the pump should run at 12V as there is a concern surrounding the lifetime of the product and the warranty. However, the pump can be used at 9V speed without any lifetime issues. It may be harder to handle a GPU in the loop and may lose performance, but the Kelvin Series overall can be quite silent at 9V and the warranty will support this.

På sista sidan svarar Fractal: