If a 2.5" HDD is placed very close (2 cm or 3 cm) to a large, 29" CRT TV Power off, could this TV, due to its large and powerful magnets and coils, cause some degradation in the HDD’s magnetism, leading to data loss or corruption and magnetic degradation?
I have WD10JPVX-08JC3T5 and HGST APPLE HDD HTS541010A99E662
Hard disks could be impacted by CRT displays. The CRT electron beam coils are strong magnets that vary depending on the scanning of the beam on the the phosphors on the TV display.
I suggest finding a LCD TV instead which is free of magnetic fields.
If a large 29" CRT TV is switched off and a 2.5" HDD is placed 2cm away, is the risk the same? Does the residual magnetism from the TV degrade the magnetism of the 2.5" HDD, causing corruption and data loss on the platters?
If the television is powered down the deflection magnets are powered down.
I think the advantage of a LCD television will be beneficial longer term
A large 29" CRT TV, when switched off, emits magnetism that reaches the 2.5" HDD, removing and corrupting data. Is this magnetism damaging the 2.5" HDD?
Power off disables the deflection coils and other magnetics in CRT class televisions. The operating magnetism will definitely affect a hard disk.
Hard disks also have a servo track which is used to calibrate the heads. This gets damaged and the disk will stop working.
A SATA SSD in a USB enclosure is more resistant to magnetic fields.
HDD 2.5” any protection? Big CRT TV 29” residual magnetic by big coils and big magnets?
My HDDs models WD10JPVX-08JC3T5 and HGST HTS541010A99E662
Depending on how good the bleeder resisters are, CRT displays can retain magnetism for some time. I again reiterate getting a LCD television which does not have hazards.
hdd 2.5” no protection?
Hey! No need to worry. If the CRT TV is off, it won’t harm your hard drives. The magnets inside only create strong fields when the TV is on. At 2–3 cm distance, there’s no risk of data loss or damage. Your WD and HGST drives are totally safe.
Because no risk?
Yes, no risk. A CRT looks powerful but its magnetic field fades fast. At a small distance your HDD stays safe. Even older laptop drives have basic shielding. Just don’t press the drive right against the TV while it is on and you’re absolutely fine.
What shielding in old models WD10JPVX-08JC3T5, HGST HTS541010A99E662?
Both of those HDD models have the same basic protection. The metal body of the drive itself acts like a shield and weakens outside magnetic fields before they reach the platters. They are built to survive normal household magnets and powered-off CRTs. Only very strong industrial magnets can bother them.
