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why do high-end psu's use ball bearing fans?

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  • Fan
  • Components
  • Cooler Master
Last response: in Components
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March 6, 2014 11:28:42 PM

i've just had my psu fan start to make noise after 2.5 years. i'm thinking it would have lasted a lot longer if it was fdb. i've noticed only the cooler master vanguard uses fdb. does anybody know why this is? also, what's the quietest + longest lasting 1000w psu? thanks

More about : high end psu ball bearing fans

March 6, 2014 11:38:36 PM

sometimes its not the type of fan/bearings they use, its the quality and environment its exposed to. Having fixed production printers for quite a while now, they are full of fans, and sometimes you just get a dud one that stalls or makes noise after a short period, when the exact same fan on another machine can last 5 years +
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March 6, 2014 11:48:06 PM

Fluid Dynamic and ball bearing fans tend to be quieter, and they last longer than simple sleeve bearing fans. I presume they aren't used on inexpensive power supplies because of simple economics, they cost more.

I would say that the Seasonic Platinum series would be your best bet for the 1000watt PSU
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March 7, 2014 12:37:22 AM

sancco said:
i've just had my psu fan start to make noise after 2.5 years. i'm thinking it would have lasted a lot longer if it was fdb. i've noticed only the cooler master vanguard uses fdb. does anybody know why this is? also, what's the quietest + longest lasting 1000w psu? thanks


Well they cost more. A good, high quality PSU won't have the fan spinning very fast, very often. At the relatively low speeds that they use, they typically virtually inaudible anyway.

As to what to get, EVGA supernova P2 1000 made by superflower. Superb PSU, very very quiet. And 10 year warranty is hard to beat. Superflower makes the same PSU for a few different brands but the EVGA one is the best.
Seasonic platinum 1000 is good too, probably a tie in quality, but costs more money and has a shorter warranty.
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March 7, 2014 12:45:17 AM

ok i had this idea in my head that ball bearings only last a few years whereas fluid dynamic last 2-3x as long. not so?
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March 7, 2014 12:46:40 AM

Quality ball bearings last a very long time. FD lasts 2-3 times as long as sleeve bearing maybe.
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