Can the magnetic field of the speaker of the CF-M34 damage the harddrive ?

Yesterday i did a little work on one of my several CF-M34, and i was thinking about the speaker, that is on top of the harddrive encasement / holder.

I know that a speaker is magnetic, and that harddrives and 3.5 inch diskettes can get damaged by the magnetic power.

Does anybody know if the speaker on top of the CF-M34 harddrive is able to damage the sectors in the long term ?

Just wondering, because there is only a small plastic plate that has the speaker inside, and of course the box around the harddrive thats also made of tin metal.

So , the distance between the magnetic part of the audio speaker and the harddrive is less than 1 cm/inch.

 

Myself I can not see it. You would think that Panasonic would of known this and if it was a problem they would of changed this.

 

Probably correct, but engineers are human and have been known to miss very obvious details.
As a friend always reminds me...SOMEONE had to graduate BOTTOM of the class....
Dell and HP can't hire them all....

 

:laugh::laugh: That's a fact...Jack :laugh: :laugh:

 

It's true that diskettes can be easily damaged by magnetic fields, but they have only a plastic case. Hard drives are encased in sturdy metal shells that shield the platters inside from external fields. It would be an interesting experiment to take an old hard drive to the store and get the clerk to run their demagnitizer on it (used to neutralize anti-theft tags at the checkout counter), then see if it will still read data. I'm betting it would still work.

 

And half of the people in the world are dumber than average. I think I run into more than my share at work

 

The metal around hard drives is not magnetic itself and will pass magnetic fields relative easily. A rolex-something-Gauss that is more resistive against magnetic fields uses a soft iron (or some nickle/chrome/iron alloy) encasing to prevent this.
But changing a bit on a HDD isn't that easy.
Just think about the rare-earth-magnets inside a harddrive, used to get the heads floating, that are just 2cm away from the platter inside the casing!
So a rather weak magnet from a speaker isn't likely to change anything on a HDD.

 

No, it can't be damaged from a speaker because:

1. The speaker magnet is too small

2. The HDD drivers are pretty protected. I had a case when PC speaker was put directly on top of a HDD for more than few minutes during PC assembly and it did not broke it at all.

 

You would most likely need to set the magnet directly on the platter for that to happen I would imagine.

 

thanks for all the answers. I know from a friend of me, who works in a harddrive deleting company, that they refurbish harddrives, and use a certain machine with a huge magnet. They put several HDs in a box, undernead that giant magnet, push a button, let the magnet work, and some time later, you get hds where the "bits" or information is deleted/damaged. (I am not the expert in this field, but yeah, as a beginner, thats what i know).