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Fans!!!! The most complete and comprehensive array of tests and benchmarks - Page 151

post #1501 of 2758
Quote:
Originally Posted by AlienPrime173 View Post

Bought some.. $25 each. Holy crap. Amazing. Made by Nidec.. best beating i have ever seen in a fan. I turn the system of and they spin and spin and spin
I hate to burst your bubble, but they work better if system is running. tongue.gif
biggrin.gif
post #1502 of 2758
Quote:
Originally Posted by doyll View Post

I hate to burst your bubble, but they work better if system is running. tongue.gif
biggrin.gif

LOL! I was leaning towards that direction! LOL!
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post #1503 of 2758
Sounds funny, but I've had the same experience before. The first time I got my hands on some well made cooling fans (those were a few old Delta server fans IIRC), I connected one to a PWM controller and played with it for a bit. Then I turned off the output channel it was connected to. After a while I though there was something wrong with my controller's switch because the fan was still spinning. Eventually the fan stopped and I realized it was just too smooth to stop within the time I'm used to.
post #1504 of 2758
Quote:
Originally Posted by MrKoala View Post

Sounds funny, but I've had the same experience before. The first time I got my hands on some well made cooling fans (those were a few old Delta server fans IIRC), I connected one to a PWM controller and played with it for a bit. Then I turned off the output channel it was connected to. After a while I though there was something wrong with my controller's switch because the fan was still spinning. Eventually the fan stopped and I realized it was just too smooth to stop within the time I'm used to.

yes! I tested it, at full speed, it takes 23.580 seconds to come to a complete stop! Like unREAL! Most fans come to a stop in under 10 seconds! (even 2600rpm koolance HBK fans)

I was puzzled at first hahaha
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post #1505 of 2758
good bearings, good balance and good aero dynamic design, imho an ideal rotating device would never stop even without input power, but thats impossible. biggrin.gif
though anyway, if the fan stops in a very short period, then theres something wrong with it.
post #1506 of 2758
Thread Starter 
Quote:
Originally Posted by epic1337 View Post

good bearings, good balance and good aero dynamic design, imho an ideal rotating device would never stop even without input power, but thats impossible. biggrin.gif
though anyway, if the fan stops in a very short period, then theres something wrong with it.

My fans stop short of asking me for autographs. heiehieheuheuheuheu.
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post #1507 of 2758
A motor's magnetic fields can (and do) stop some motors much faster than others, fans included.
post #1508 of 2758
depends on the motor design, a dynamo motor can run nearly indefinitely if given the right circumstances.
https://en.wikipedia.org/wiki/Flywheel_energy_storage
post #1509 of 2758
True, but a fan has the resistance of it's blades moving in the air to slow it's movement.

I was referring to the magnetic attractions inside the fan motor and how they sometimes stop and hold the fan's position. Lightly push / move blade and it returns to original position. tongue.gif
post #1510 of 2758
these are all the fans i own (except GT AP-60 and xigmatek XAF) those are in my system.. and by far the AP-60's out perform every fan. more than double the power off spin time haha

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