Magnet in Noctua Redux fan makes case magnetic. Help?

BravelySam · Aug 15, 2016

I went to install my NF-P14s redux, and I noticed it was attracted to the chassis, next thing I know, the plug for it was attracting to the metal where I set it down. I put screws near the case and I can feel it pulling them, even after I've taken the fan out. Is this normal, and can this cause problems for hard drives?

USAFRet · Aug 15, 2016

BravelySam :

If magnets inside a fan were a problem for hard drives, we would have known this a few decades ago.
Additionally, the magnet INSIDE the hard drive is about 1,000 times stronger than anything in a fan.

BravelySam · Aug 15, 2016

So the whole case getting a bit magnetized from it is normal?

skit75 · Aug 15, 2016

The magnets inside hard drives are scary strong and down right dangerous. The term "rare Earth" magnet gets thrown around but I don't know if something special is attributed to these magnets because of the term. I do know that if you catch a finger in between, it will feel like you just slammed your hand in a car door. I learn best from experience. Best analogy I can come up with is about the force of a solid rat trap. They are no joke and can draw blood or leave you with a very mean blood blister.

skit75 · Aug 15, 2016

BravelySam :

If your case is made from steel, yes, it can become magnetized in the same way rubbing a magnet onto a screw-driver can enable the screw-driver to pick up screws. If you have an aluminum case, nope.

bigpinkdragon286 · Aug 15, 2016

Need a good fridge magnet? Scavenge from old hard drives.

USAFRet · Aug 15, 2016

skit75 :

Rare Earth
https://en.wikipedia.org/wiki/Rare_earth_element
In terms of magnets - Neodymium

Or, the other Rare Earth

USAFRet · Aug 15, 2016

bigpinkdragon286 :

Thats why I always call busted drives "fridge magnet donors"

BravelySam · Aug 15, 2016

I have a Phanteks Enthoo Pro. The magnetism seems to have worn off now, but I gotta mount those fans anyway. Subtle magnetism won't screw with a motherboard, will it?

skit75 · Aug 15, 2016

USAFRet :

skit75 :

Rare Earth
https://en.wikipedia.org/wiki/Rare_earth_element
In terms of magnets - Neodymium

Or, the other Rare Earth

That's the one!

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Magnet in Noctua Redux fan makes case magnetic. Help?

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