Will platters from a 400GB HD work on a 300GB HD?

  • Thread starter Thread starter benn686
  • Start date Start date
B

benn686

I accidentally dropped my 400GB Seagate external PATA drive while it
was running. Needless to say, it no longer works (I dont even think I
hear it spinning). Anyways, could I recover the data by removing the
3 platters from this drive and installing it onto another Seagate
drive (it shows the same controller PCB model/rev#) but the size of
the new drive is only 300GB?

The reason I ask, is that I carefully did this and it didnt work.. but
I'm not sure if its because of my workmanship or if the size
difference is the problem.

I put the 'crashed' platters, which by the way on inspection look
fine, they dont appear to have any scratches or anything on them, and
I opened a working 300gb seagate drive and replaced its platters with
my crashed ones. Unfortunately, even though the platters are
definately spinning now, and windows makes the familiar sound when a
usb device is plugged in, it never sees the drive.

Also, Im not sure if this is normal, but I had it spin with the top
cover off, and it looked like the arm rotated from the center, but
stops a little more than half way before reaching the edge. I've
never run a working drive with the cover off, but shouldnt the arm
rotate the head from the center all the way to the edge?
 
I accidentally dropped my 400GB Seagate external PATA drive while it
was running. Needless to say, it no longer works (I dont even think I
hear it spinning). Anyways, could I recover the data by removing the
3 platters from this drive and installing it onto another Seagate
drive (it shows the same controller PCB model/rev#) but the size of
the new drive is only 300GB?
Click to expand...

Nope. You couldnt get the data off that way even if the two drives are identical.
The reason I ask, is that I carefully did this and it didnt work..
Click to expand...

Then you have no chance of getting the data back now.
but I'm not sure if its because of my workmanship
or if the size difference is the problem.
Click to expand...

Or the fact that it isnt possible to move the platters
and get the data back even if the drives are identical.
I put the 'crashed' platters, which by the way on inspection look
fine, they dont appear to have any scratches or anything on them, and
I opened a working 300gb seagate drive and replaced its platters with
my crashed ones. Unfortunately, even though the platters are definately
spinning now, and windows makes the familiar sound when a
usb device is plugged in, it never sees the drive.
Click to expand...
Also, Im not sure if this is normal, but I had it spin with the top
cover off, and it looked like the arm rotated from the center, but
stops a little more than half way before reaching the edge. I've
never run a working drive with the cover off, but shouldnt the arm
rotate the head from the center all the way to the edge?
Click to expand...

Yep, its ****ed now.
 
Previously Odie Ferrous said:
If you believe that, you'd believe the earth was flat.
Click to expand...

I have read that one the platters are removed or loosened,
it is extremely hard or impossible to get them re-centerd again.
Is that true?

Arno
 
Given that the bearings runout must be less than 1 micrometer, it should be
next to impossible to re-center platters with such precision.
 
Alexander Grigoriev said:
Given that the bearings runout must be less than 1 micrometer, it should be
next to impossible to re-center platters with such precision.
Click to expand...

So how do they do that then, topposter.
 
So how do they do that then, topposter.






- Show quoted text -
Click to expand...

Based on the these 300/400gb seagates, theres about a 3/4" peg that
all 3 platters slip over. Theres not any play between the peg and the
platters so I'm not sure what other re-centering is done. In between
the platters theres these plastic spacers, again, they are cut so that
when the platters fall into place theres no room for adjustment. I
could post pictures if anyone is interested.
 
Based on the these 300/400gb seagates, theres about a 3/4" peg that
all 3 platters slip over. Theres not any play between the peg and the
platters so I'm not sure what other re-centering is done.
Click to expand...

There is ample play, believe me. It is just a bit less than a
human can easily feel.

Arno
 
In
hear it spinning). Anyways, could I recover the data by removing the
3 platters from this drive and installing it onto another Seagate
drive (it shows the same controller PCB model/rev#) but the size of
the new drive is only 300GB?
Click to expand...

Sorry benn686, You're kidding!
HDD were manufactured under a very clean athmosphere!
This You'll never be able to reproduce at home!
Also the other measurements You'll never been able to fit them!
The reason I ask, is that I carefully did this and it didnt work.. but
I'm not sure if its because of my workmanship or if the size
difference is the problem.
Click to expand...
NO Your principal setup was WRONG! You NEVER can work on
devices manufactured under very CLEAN surroundings at Your home!
I put the 'crashed' platters, which by the way on inspection look
fine, they dont appear to have any scratches or anything on them, ...
Click to expand...
AND did You use a microskope?
I opened a working 300gb seagate drive and replaced its platters with
my crashed ones. Unfortunately, even though the platters are
definately spinning now, and windows makes the familiar sound when a
usb device is plugged in, it never sees the drive.
Click to expand...

Forget it, same as this Q is nothing like a joke!
Horst
 
Horstshit is back.

Horst Franke said:
In

Sorry benn686, You're kidding!
HDD were manufactured under a very clean athmosphere!
This You'll never be able to reproduce at home!
Also the other measurements You'll never been able to fit them!

NO Your principal setup was WRONG! You NEVER can work on
devices manufactured under very CLEAN surroundings at Your home!



Forget it, same as this Q is nothing like a joke!
Horst
Click to expand...
 
Back
Top