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AC line EM and magnetic interference - a problem for magnetic storage?

Jeff7

Jeff7

Lifer
May sound stupid, but this is all it is:
I am doing a small project here, and I am considering running a 120V AC line directly underneath a floppy drive, and within maybe an inch of a hard drive. It'd just be the three wires, hot, neutral, and ground, stranded wire, and a straight run. It'd be carrying as much power as a small computer uses. Would this put out enough EM magnetic interference to affect the operation of either the floppy drive or the hard drive?
 
to be honest, there are no guarantees and it depends on how much insulation you have around the wires. Also I would guess that it won't hurt the harddrive, maybe the floppy, but i would guess that if run near the data cables would be your biggest problem. I would have to say that something like the IDE cable is the most succeptable thing to the interference.
I would have to say that odds are you won't have a problem but I myself would not risk it...

Josh
 
Originally posted by: SocrPlyr
to be honest, there are no guarantees and it depends on how much insulation you have around the wires. Also I would guess that it won't hurt the harddrive, maybe the floppy, but i would guess that if run near the data cables would be your biggest problem. I would have to say that something like the IDE cable is the most succeptable thing to the interference.
I would have to say that odds are you won't have a problem but I myself would not risk it...

Josh
Click to expand...

Well this project was a gamble from the start. Inspired by this, I decided to try to put my old Plustek FBIVP Scanner to good use - my PC-in-a-scanner project was underway.
(The link might not work for awhile...they're doing some server work there, it seems.)

I've got just about everything placed out, done extensive modifications to the scanner casing, and now I've just got to figure out where I'm going to put the outlet and switch. And it's tough, because it was a tight fit for everything to squeeze in this case. mATX motherboard, ATX PSU, hard drive, floppy, and a laptop CD drive (ok, so I cheated a little). Damn near every last cubic inch is used.

Layout pic

I discovered some extra space underneath the hard drive, aside of the floppy drive. I can put the outlet there, but I'll need to run the power lines underneath the floppy drive to get to the power supply circuit board. So actually, I guess the floppy drive would act as a shield for the hard drive. As for the floppy drive....well, it is just a floppy drive.
 
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