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Author Topic: PC help: CPU fan  (Read 4015 times)

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Kirosia

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PC help: CPU fan
« on: August 18, 2013, 09:59:16 PM »

I have a Cooler Master Hyper 212 Evo heatsink. Today, the stock fan began rattling. I tried cleaning it, reseating it, to no avail. I tried a different fan header on the motherboard, and the rattling still happens. Does this mean that high chances are, the fan has simply gone bad? I'm more worried about motherboard issues.
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OJneg

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Re: PC help: CPU fan
« Reply #1 on: August 18, 2013, 10:05:27 PM »

Just when I was about to order one of these...

How long have you had it? Is it the fan wings or bearing rattling, or is it rattling because of how it's clipped to the heatsink?
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Kirosia

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Re: PC help: CPU fan
« Reply #2 on: August 18, 2013, 10:07:14 PM »

Eight months.

I just tried placing my finger on the middle of the fan (circular part), the noise disappears when the fan slows/stops. Would it be the bearings, then? I've read that the CM uses a really cruddy proprietary bearing design.
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prtuc2

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Re: PC help: CPU fan
« Reply #3 on: August 18, 2013, 10:17:48 PM »

Usually the rattling is causing by the unbalance fan motor when rotating the weight is undistributed across the fan causing the fan to move (rattling).  You can opened up the fan motor and try give it some WD-40 see it soothe out a little, if not best option is to get an another fan.
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Kirosia

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Re: PC help: CPU fan
« Reply #4 on: August 18, 2013, 10:19:21 PM »

I might just splurge for a Noctua NF-F12. If the fan is bad, don't care. If the motherboard or something else is bad, I'm going to die.
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prtuc2

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Re: PC help: CPU fan
« Reply #5 on: August 18, 2013, 10:33:16 PM »

You can always test it out with a fan controller or 3/4pins to molex adapter plug straight into the PSU molex connector for testing purpose.
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Kirosia

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Re: PC help: CPU fan
« Reply #6 on: August 18, 2013, 10:41:13 PM »

Well I did pull it out of the PWM header and place it in the 3-pin, same thing happens. Is it probable that both my fan headers are bad?

I can't find the fan adapter for my PSU.
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prtuc2

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Re: PC help: CPU fan
« Reply #7 on: August 18, 2013, 10:45:36 PM »

Very unlike, if it does you can see a black spot around the fan header giving you an indication that the header was probably burn or short out.  The imbalance fan motor is the most likely root of the problem, you can use the case fan swap it out and mount it on your heatsink see if you get a different result.
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Kirosia

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Re: PC help: CPU fan
« Reply #8 on: August 18, 2013, 11:01:19 PM »

Think I'll just replace, and hope for the best. Might as well pick up a CM Storm Spawn from Newegg while I'm at it. (Have 2-Day Shoprunner)
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DaveBSC

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Re: PC help: CPU fan
« Reply #9 on: August 18, 2013, 11:18:09 PM »

I'd be willing to bet that it's a motor/bearing issue, and nothing to do with the motherboard or fan headers. Cheap ball bearing fans fail all the time, you get what you pay for. Sleeve and fluid bearing fans generally aren't rated as high as double ball bearing fans in terms of MTBF, but they almost always have a much smoother quality in terms of noise and are less likely to grenade before they should.

Noctua, Scythe Gentle Typhoon, Nexus, and Noise Blocker are my favorites. Most of the time fans made by CM and other large companies are just rebadged Yate Loons or something similar. Almost no companies like that actually produce any of their fans.
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