| Forum Home | ||||
| Press F1 | ||||
| Thread ID: 66503 | 2006-02-25 09:07:00 | Case magnets? | imarubberducky (7230) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 433776 | 2006-02-25 09:07:00 | Is there any threat of damage to my PC components by placing magnets on the outside of my PC case? Cheers. |
imarubberducky (7230) | ||
| 433777 | 2006-02-25 09:15:00 | Depends on the strength of them, but I wouldn't in any case. You could do irreparable damage to your hard disk(s), floppy :) - i.e devices that utilise magnetism for their information storage. | wuppo (41) | ||
| 433778 | 2006-02-25 22:55:00 | They seem pretty weak, there only word magnets. But I suppose its not worth the risk. | imarubberducky (7230) | ||
| 433779 | 2006-02-25 23:22:00 | You'd need a MASSIVE magnet to change the polarity of bits on the platters on a harddrive. I think I read somewhere that in order to clear the data using a magnet they used some huge electro-magnet held in the pentagon. Sounds cool, I doubt a small case magnet would do any harm. | DangerousDave (697) | ||
| 433780 | 2006-02-26 00:25:00 | Heh can't be too harmful. The latest Intel macs come with a mini remote control and it uses a magnet to stick itself to the LCD screen (and that also is the case on the iMacs)......... |
gibler (49) | ||
| 433781 | 2006-02-26 00:35:00 | If the magnet sticks, it's a steel case, and the flux is looping in that. Any remaining external field drops off with the cube of distance. You use AC fields to erase magnetic media; a stationary permanent magnet won't have much effect. But why bother? Bluetak will hold your list of passwords just as well or better. Some people had problems when they used a magnet to hold a floppy to steel surfaces. But that's putting a varying flux through the medium. Of course, there are limits. I'm a bit cautious about where I park magnets from magnetrons, but they are several thousand tesla. |
Graham L (2) | ||
| 433782 | 2006-02-26 02:49:00 | Of course, there are limits. I'm a bit cautious about where I park magnets from magnetrons, but they are several thousand tesla. That's some mother of a magnet Graham! The core of an MRI unit doesn't get much above 10 Tesla, and smaller MRI units have maximum core fields of 1.5 to 2.5 Tesla. Most decent sized magnetrons have a maximum field of between 1000 and 2000 Gauss (100-200mT) at the surface of the magnet. Are you sure you didn't mean several thousand gauss? Cheers Billy 8-{) |
Billy T (70) | ||
| 433783 | 2006-02-26 03:20:00 | You'd need a MASSIVE magnet to change the polarity of bits on the platters on a harddrive. I think I read somewhere that in order to clear the data using a magnet they used some huge electro-magnet held in the pentagon. Sounds cool, I doubt a small case magnet would do any harm. No you don't. My husband has one about 4.5 inches long. It killed a HDD very well, we tried it. |
pctek (84) | ||
| 433784 | 2006-02-26 07:46:00 | No you don't. My husband has one about 4.5 inches long. It killed a HDD very well, we tried it. I'm not sure we really needed such intimate detail on a family forum :blush: but since you have mentioned it, and if you don't mind my asking, did you ever get normal use out of it again after he used it to kill the HDD? Cheers Billy ]8-{) :p |
Billy T (70) | ||
| 433785 | 2006-02-26 07:51:00 | My iMac has a magnet in it to hold the remote on the side so I'm guessing it you have to be a pretty big magnet before you would have problems. In any case, I wouldn't put any magnet too near things like the hard drive etc. :) | maccrazy (6741) | ||
| 1 2 | |||||