Anything related to hard disk drives (HDDs), a.k.a. hard-disks or hard-drives (HDs), i.e. electromechanical devices often found inside computers used as secondary storage (mass-storage). They can store information in digital form by magnetizing tiny areas of magnetic material with which the their ...

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0answers
20 views

I broke the USB port on my external HDD. What do I do? [migrated]

Tried plugging my USB in and it broke off..what do I do?? How to get my data off?? Please help!!
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0answers
25 views

2.Can I use power supply with specs 'out: +5V - 2.5A / in: ~50-60Hz 0.5A' work with 'USB 2.0 HD 500GB’ requiring 'out: 5V - 2.5A / in: ~50-60Hz 0.4A'? [duplicate]

Info about external Harddrive (HD): https://www.lacie.com/support/support_manifest.htm?pid=11085 This is a different question than my 1st one. The difference is: - my 2nd Question: 'out: +5V - ...
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votes
1answer
60 views

Addressing the cylinders of a Hard Drive

I want to address the cylinders of a Hard Drive but I can't find a good manual of the pinout of the IDE interface. Anyone knows how to do that? I don't want to read/write anything in the disk, just ...
0
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2answers
101 views

What natural processes can cause Catastrophic Failure of a Hard Drive?

My understanding of conventional hard drives is they fail slowly. Something breaks and skips along the platters and data begins to be corrupted. I believe this is what the mean-time-between-failures ...
2
votes
1answer
91 views

Can I run this hard drive on 12Vdc 1.25A instead of 1.5? [duplicate]

I have a My Book Essential external hard-drive from WD that ships with a 12Vdc 1.5A 18 Watt adapter. Will I be risking everything by plugging it into a 12Vdc 1.25A adapter?
2
votes
2answers
175 views

usb drive EEPROM IC how is memory read-only blocked and unblocked?

I notice ofteen free give-away usb thumb drive come with a certain memory space locked and unwritable so that a 4 GB flash drive for instance has 1GB of advert which cannot be format. Given that thumb ...
-3
votes
2answers
108 views

Effects of a subwoofer on computer components [closed]

Ok so here's a question that I've only seen asked once, what are (if any) the adverse effects of having a subwoofer included in a PC case mod? The Backstory: I've got an OK case. Looks nice, has cool ...
0
votes
1answer
169 views

What is the hardware/device that can switch a 5V and 12V (simultaneously) PC power supply lines?

What I want to do is to switch the power supply lines (5V and 12V) for a hard drive. The 5V line is meant for data transmission, and the 12V is for the spinning disk DC motor. I would like to control ...
1
vote
1answer
135 views

What is the maximum magnetic flux density a HDD can tolerate before data is corrupted?

Does anyone have hard numbers explaining the maximum number of Teslas a hard disk drive can tolerate before data will be corrupted. This forum says "a lot", which isn't super helpful. This one ...
8
votes
3answers
10k views

How can I spin an old HDD motor?

I've stripped out an old IDE (40 Pin) HDD from 1998 for use in a POV display project (Gr. 12 Computer Engineering), and I've been trying to spin it up. The problem is that the HDD motor is brushless ...
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votes
3answers
152 views

Using a CPU manually [closed]

Ok, I know this may sound dumb but, here is the thing: I recently removed a cpu, ram and hard disk from my 10-ish year old pc. At first, I did that to understand how the pc was built. Now, the next ...
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2answers
945 views

What is the function of a Logic board on a Hard disk? [closed]

Since I am planning to troubleshoot my failed hard disk which is not powering up, I am planning to check whether the logic board is working fine or not. Shall be grateful to someone who can tell ...
4
votes
2answers
390 views

Reliable secondary storage for Raspberry Pi (or other such single-board computers (SBCs))?

Most SD cards have a fairly limited life (as in maximum number of read-write cycles), and in spite of wear-levelling, for relatively frequent disk update applications, would probably fail in a year or ...
3
votes
6answers
193 views

Hard drive that has the ability to “read” old data while it performs a write?

Is there a hard drive (protocol command, specific model, etc.) that, while writing new data over old data, it "read"/return the old data back to the controller/OS? (Analogous to a simultaneous ...
2
votes
6answers
743 views

Can I safely use a HDD in a car?

A few months ago I bought some new speakers and an amp for my Jeep. I made a little face plate with an ALPS potentiometer to control the volume and it has an iPod dock (no head unit, just the pot). ...
1
vote
3answers
679 views

Over-volting an hard disk voice coil actuator

I have disassembled an old hard disk and I making the voice coil move by applying a voltage between the terminals of the coil. I plan to use this to raise or lower a flag attached to the actuator arm. ...
9
votes
5answers
995 views

How big a magnet do I need to wipe my portable HDD?

According to this article, I need a really big magnet to wipe the data off my HDD. Thing is, I don't know how strong a "laboratory degausser" is, so I'll ask it in my own terms: I have a pair of ...
10
votes
3answers
328 views

How is the state of a bit position on a hard drive measured?

Firstly, I am not the EE type, but I do have a petty good foundation on physics work on a pretty low level. I was wondering what mechanism it is that measures the magnetic indentation on hard drive ...
1
vote
0answers
169 views

USB connector on WD Elements HDD has come off [closed]

I have been using a WD Elements 1.5TB HDD for the past 2~3 years. The USB connector to the drive has for the past few months been pretty unstable and finally today it seems to have completely removed ...
4
votes
1answer
671 views

Where can I find XT-IDE (8bit IDE, XTA) specifications?

I have an old hard drive and would like to try to read the data from it. The hard drive is IDE, but it is the old version of IDE, called XTA and it is only 8 bits wide (compared to "normal", 16bit ...
2
votes
3answers
6k views

hard drive head/seek motor with Arduino?

I can see there are many writings on line for using an Arduino to control a 4 or 6 wire stepper motor, that spins the platter in side an IDE hard drive. I want to control the seek read/write head ...
5
votes
2answers
373 views

What exactly are 'pins'?

I actually ran into this question just a few moments ago: http://serverfault.com/questions/12025/intro-to-laptop-hard-drives The first answer is the one that caught my attention. Apparently, there ...
1
vote
1answer
1k views

How can I measure TVS diode for Seagate Momentus 7200.3?

I hope the TVS diode (or something like this) of my HDD's PCB is gone, so I could fix this HDD easily, but I don't know where it is. Can you tell me how to measure it? I read this but I didn't ...
1
vote
1answer
2k views

Controlling/Reading Hard Drive Brushless Motor w/ uC

I am working on creating a Hard Drive DJ similar to the other posting on this website, except that I want to drive the motor when the user isn't scratching on it. Multiple sources recommended using an ...