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Scythe Mini Kaze Ultra 40 mm Silent Lüfter
|Price:||£7.30 FREE UK delivery.|
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Power Connector:2-pin plug, Rated Current:0.07 A, Rated Voltage:12 V, Fan Diameter:40 mm, Rotation Speed:3500 rpm, Air Flow:4.86 cfm, Fan Bearing:Sleeve bearing, Fan Height:20 mm, Noise Level:19.6 dBA, Noise & Performance Details:19.6 dBA / 4.86 cfm at 3500 rpm, MTBF:30,000 hour(s), Compliant Standards:CSA, UL
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Top Customer Reviews
It is VERY quiet - I had to check the fan was spinning, because I couldn't hear anything. The problem is, I couldn't feel it moving any air - I eventually found a feather and could see it was blowing, but it remains to be seen if it's shifting enough air to keep this box cool.
Most Helpful Customer Reviews on Amazon.com (beta)
Usually this is not a problem because servers sit in remote server rooms, but what if you have to sit next to one? I have a 1U Supermicro server with an Atom D525 CPU. It has three 40mm fans and it's racked right next to my desk. The high pitched whine from this server was driving me nuts.
I replaced the 3 stock 40mm fans with these Scythe 40mm fans. I glue gunned them in, which worked fine. I started the server and did a double take -- I didn't believe it was running because I was used to listening for the usual whine. No more whine! Now almost silent!
I knew these wouldn't move as much air as my stock fans even when the stock fans were running at low speed. Yep -- right away I saw a 10-15C increase in average CPU temperature. At idle it now hovers around 45C whereas before it was around 30C. The Atom CPU is rated up to 100C and my use for this box is a pfSense router which doesn't stress the CPU much, so in my situation the elevated temperature is fine. But obviously, depending on your situation, you may not be able to get away with the reduced airflow and increased CPU temp that is the tradeoff which comes with using these Scythe fans versus stock fans.
Great with some caveats -- won't work for every situation but worked great for mine.
P.S: Be careful not to bend or stress the power wires on these fans! I learned the hard way that the solder joints they're connected to are extremely delicate.
Except... any time I run a 3d game the temperature of the GPU goes sky high. The GPU on a graphics card would do the same but those have heat sinks and cooling fans to control that. My GPU only has a small heat sink.
I needed a way to cool it off.
I couldn't find anything! Search for GPU cooling and you find other people complaining in online forums but no solutions. But I knew something had to be out there.
I wrote emails to some PC cooling specialty stores.
CoolerGuys wrote back quickly with detailed recommendations! Turns out I was looking for the wrong thing. Instead of a GPU cooler, I needed a northbridge cooler (the GPU is part of the northbridge). And they had many ways to cool the northbridge.
One of their suggestions was this fan. What's impressive about the pick is that this fan wouldn't normally be considered as a northbridge cooler. But CoolerGuys figured out a clever way to use the fan's screws to latch onto the northbridge heat sink.
I decided to give their suggestion a try.
Before using the fan my GPU would typically run at 180f and would zoom towards 210f during graphically intense games (I never found out how high it might go as I would stop the game when the temperature got that high).
After installing the fan the GPU runs at 120f! And, during those games, the max temp levels out at 132f!
That's a fantastic result for a five dollar fan*.
And the fan is quiet. Since it's quieter than my CPU fan and my computer's case fan it I can't even hear it!
Summing it up. The fan is good but CoolerGuys are GREAT!
*I did have to pick up a power adaptor to plug the fan into a molex plug on my computer's power supply. Those are cheap.
Side note, some people claim sleeve bearings are shorter life span than ball bearings and that you should only use ball bearing fans. While this may be true the lifespan of both units are high enough that even if you ran the fan 24/7 it would take years for the fan to fail. At this point you'll probably be getting a new computer for other reasons.