Posts Tagged ‘PWM’

Cooler Master has brought to market their “Fourth Generation Bearing,” a bearing based on POM (polyoxymethylene). So far, they have built three fans with POM bearings. The second fan to use a POM bearing is the Jetflo, the very fan we will be reviewing here. The Jetflo has a number of features that make it an interesting fan indeed. In fact, the POM bearing is just the first of its features. So let us review them all, and put the fan through its paces.

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Phanteks was founded in 2007. Their first product was a heatsink that was arguably the best heatsink when it was introduced. Since then we have seen more fans and more heatsinks from Phanteks. And now they jump into the world of cases. Just as they did with the PH-TC14PE, Phanteks is starting at the top end of the market, this time with the Enthoo Primo, a $250 case. Is this case worth that price? Let us find out.

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Noctua is known for quiet fans and some would say an unorthodox color scheme. They’ve managed to power past their color choices though and have built a reputation as one of the premier cooling manufacturers on the market today. The heatsink we’re looking at today is in their silent series, the Noctua NH-U12S.

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Highspeed Gentle Typhoons are wonderful beasties. They run at 300, 4250 and 5400 rpm but sound surprisingly quiet for those speeds. They draw their power from the PSU so they don’t burn out your motherboard. They even report their RPM with a dedicated line. All they lack is PWM. With PWM control our motherboards could tell these fans when to really crank, and when to be quiet. But take heart! Hiding in highspeed Gentle Typhoons are the reins to controlling these fans. I just bought a new highspeed Gentle Typhoon. Inside half an hour I can turn this wild critter into a docile PWM fan. Follow along with me and learn for yourself.

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Here we will look at a variety of 120 mm PWM push fans on the Noctua NH-D14 while using two different 140 mm PWM fans in the center. Noctua has sent three PWM fans so we finally have what I need to make some comprehensive comparisons

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What if you want to control the speed of your high-speed Gentle Typhoon fan? Maybe you’re tired of it going full-blast all the time. It is quite noisy after all… What to do? You could buy an expensive fan controller, but there is a better way. Actually, there are a couple of better ways, and they involve a hidden capability of your high-speed Gentle Typhoon’s PCB.

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Talk about an embarrassment of riches! In short order, Noctua banged out a bunch of PWM fans at the end of 2011. I thought you’d like to look at three of them and see how they perform.

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If you have a heatsink with a PWM fan and you have set it to Auto, you will hear the fan speed up from slow to fast as your CPU proceeds from idle to load. What if you want to control your PWM fans manually? Zalman has just what you’re looking for, the PWM Mate.

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This neat fan controller project requires only a little time, expense, and commitment, and the circuit is relatively easy to build and very satisfying to use!

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