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La question
Le lecteur SuperUser ‘Annonomus Person’ souhaite savoir comment identifier le ventilateur de son ordinateur:
On my new computer, the fan(s) is/are plain LOUD! Using SpeedFan, I find that my temps are all under 32 degrees C with normal usage (IDK how accurate that is, but the CPU itself says 27 degrees C).
The fan doesn’t sound unbalanced, and it isn’t making sounds in a rhythm (not the usual rrrrrrrRRRRRR… rrrrrrrRRRRRR… rrrrrrrRRRRRR… rrrrrrrRRRRRR), it just runs constantly. I am thinking about oiling the fans, but I can’t decide if it is the PSU fan, a case fan, or the CPU fan. If it’s the CPU fan, I will most likely just replace it with a quiet fan. How can I tell which fan is making the noise (if not multiple ones)?
One thing that I think may be the problem is my CPU fan isn’t PWM, so would swapping that out help? There is no “linear voltage” or etc. thing in BIOS, so I think it may be running at full speed. Also, there could be too much airflow because it is also making a whistling noise that you can hear when close to it, and sounds like when I accidentally put part of the side cover over my floor vent to get it out of the way.
Quelle est la meilleure méthode pour savoir quel ventilateur est bruyant?
La réponse
Hefewe1zen, Darrel Hoffman et Ross Aiken, contributeurs au SuperUser, ont la solution pour nous. Tout d'abord, Hefewe1zen:
Use a small piece of plastic (like a pen cap) to stop the fan from spinning. That is the easiest way to isolate the cause. It’s okay to stop it for a few seconds while on. Most fan noise is due to failure of the bearings. Sometimes, lifting the sticker on the hub and oiling it with 3 in 1 lube will help with the noise.
Suivi de la réponse de Darrel Hoffman:
We used to do this on one of our older computers and it worked fine, but a word of warning – while a plastic pen cap is probably okay, DO NOT use anything conductive like a paper clip, especially on the power supply fan. A colleague of mine knows this from experience after getting a very nasty shock and tripping all the circuit breakers. He’s lucky he wasn’t killed – there’s supposedly enough charge in a computer power supply to be lethal.
Et enfin, la réponse de Ross Aiken:
I’ll just put this here as an alternative solution:
Unplug each fan, one-by-one from the motherboard (or from the PSU, depending on the fan), and when you stop hearing the noise, plug them back in one-by-one until you hear it again (to verify that the one you thought was making the noise actually was). I’d do the CPU fan last; everything else will be fine with ambient cooling for an extended period of time. The CPU fan is the one most likely to have issues.
Granted, if you have a GPU with fans on it, you’ll probably need to use @Hefewe1zen’s method for those.
I just don’t like telling people to put hard objects and/or fingers near fast-moving objects. Too high of a chance of someone hurting themselves (especially if they’re un-coordinated).
Une approche ventilateur par ventilateur, avec un minimum de prudence pour éviter les chocs et les blessures, est sans aucun doute un bon moyen de savoir quel ventilateur parle fort.
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