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hdd and magnetism

A

aransamus77

n00b
Joined
Nov 29, 2024
Messages
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Do 2.5" HDDs experience demagnetization and file corruption if placed within a few centimeters of a 29" CRT TV? These TVs have speakers and coils that produce magnetism.
 
It's an affect over time issue. Will they be damaged in a week, likely not, couple years, might start to get bits corrupted. Depending on age and strength and design, that degauss coil could be problematic. I personally would just move them away from it.
 
yes that^^
as general rule keep any type of magnet away from them.
 
It wouldn't hurt them, most likely. The speakers in a TV are usually behind a rudimentary shield, and the degauss coil produces fluctuations at a short distance.

An older HDD, with larger (by area) magnetic domains on its platter, wouldn't break a sweat - it takes a lot of external magnetic force to disrupt those. And, the drive is enclosed in metal. AND, there is already a powerful magnet inside those hard drives.

But, as a general rule, like the guys suggested, maintain at least half a meter's distance away. Especially if you are careful with your data.
 
Is there any calculation for the magnetic force generated by 29" CRT TVs and the calculation supported by 2.5" HDDs?

The magnet inside 2.5" HDDs is designed to prevent damage to the platters, and are the magnets in 29" CRT TVs and coils different?
 
aransamus77 said:
Is there any calculation for the magnetic force generated by 29" CRT TVs and the calculation supported by 2.5" HDDs?

The magnet inside 2.5" HDDs is designed to prevent damage to the platters, and are the magnets in 29" CRT TVs and coils different?
Click to expand...
There is no standard answer to the question. Which 29" CRT, how old, yoke design, case design and the distance of the tube from the case, etc. Is the CRT in tolerance? Keep in mind that the magnets in a 2.5" HD are generally 2cm-3cm away (or closer) from the platter edge. While the power of EM/RF is generally the square of the distance from the emitter/transmitter, for magnetism is generally is the cube (inverse cube law, dipole magnets, etc).
 
I don't know, I have a 29" Philco CRT TV and another one of the same size, a Toshiba flat screen.
 
If the 29" CRT TV is turned off, will it also cause magnetic problems on the 2.5" HDD within a few cm?
 
aransamus77 said:
If the 29" CRT TV is turned off, will it also cause magnetic problems on the 2.5" HDD within a few cm?
Click to expand...
Are you going to stick the drive inside the crt housing next to the magnet? If not, you aren't going to have a problem.
 
LoL who still uses those spinning hard drives and CRT TV's anyways these days?
 
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