All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 13 posts ] 
Author Message
 Post subject: Swap platters
PostPosted: July 28th, 2005, 9:57 
Offline

Joined: July 28th, 2005, 9:35
Posts: 2
Hello,

im new here, and as i read, here are some experts on hdd.
I have a 2,5" Toshiba MK8026GAX.
It spined up, but made noises. When i hold it in the hand - while it spins - and move it th noises are getting louder till it stops (hangs). I cant recover files.
So i decided to open it, to see wats happened.
The platters look ok, but when i turn them, one side comes up while the oder side goes down by about 0,5mm.
So when th drive spins up at 5400rpm the heads dont have continuosly contact to the platters, they jump on surface.
The only way to recover i think is to swap th platters to another MK8026.

Have someone succeded to do this?
There are 2 platters inside.

I think after swap, the sectors on platter one will stay in another angle to platter two. I sthis a problem? or can i access platter one separately and then access platter two separately.

Is there a software out to slow down the rpm of the hd (like there is on cd-roms) so the heads dont jump on the surface.

Thanks


Top
 Profile  
 
 Post subject:
PostPosted: July 30th, 2005, 5:55 
Offline

Joined: July 30th, 2005, 4:25
Posts: 3
Hi

You have a bad spindle on the HDD and you should swap it.

It is pretty hard to do and since you have opened the Drive outside a cleanroom the Drive is more than likely unrecoverable.

I am 99,999% sure you have lost your data. :(


Top
 Profile  
 
 Post subject:
PostPosted: July 31st, 2005, 17:15 
Offline

Joined: July 7th, 2005, 0:40
Posts: 15
next time you have failed HDD do not open it :)

It should be done in really clean air :)


Top
 Profile  
 
 Post subject:
PostPosted: August 1st, 2005, 4:58 
Offline

Joined: September 30th, 2005, 7:33
Posts: 849
I think the question is more fundamental. Even if you use a clean room the platters swap will always fail. No one can secure perfect match between the platters and the new spindel. Magnetic tracks would be always off-axis which means unreadable. This is only my opinion... Is there someone that can claim successful platters swap?


Top
 Profile  
 
 Post subject:
PostPosted: August 1st, 2005, 7:25 
Offline

Joined: May 5th, 2004, 1:59
Posts: 193
BGman wrote:
I think the question is more fundamental. Even if you use a clean room the platters swap will always fail. No one can secure perfect match between the platters and the new spindel. Magnetic tracks would be always off-axis which means unreadable. This is only my opinion... Is there someone that can claim successful platters swap?


Hi BGman,

try it - trust me :wink:


Top
 Profile  
 
 Post subject:
PostPosted: August 1st, 2005, 16:41 
Offline

Joined: October 3rd, 2005, 0:40
Posts: 4333
Location: Hungary
Hi,

sometimes platters need some alignment. BTW I have never done it with more than 1 platter.
pepe


Top
 Profile  
 
 Post subject:
PostPosted: August 1st, 2005, 23:47 
Offline

Joined: July 7th, 2005, 0:40
Posts: 15
AFAIK it's easier to swap head blocks than platters :)


Top
 Profile  
 
 Post subject:
PostPosted: August 2nd, 2005, 1:06 
Offline

Joined: October 3rd, 2005, 0:40
Posts: 4333
Location: Hungary
Hi,

agree.
what if spindle is stuck, or the windings are burnt out?

pepe


Top
 Profile  
 
 Post subject:
PostPosted: August 2nd, 2005, 2:35 
Offline

Joined: October 28th, 2004, 3:58
Posts: 49
Hi Pepe,
Sometimes if spindle is stuck it helps to warm it up.
In other cases is more easier to use external spindle to rotate the plates.


Top
 Profile  
 
 Post subject:
PostPosted: August 2nd, 2005, 3:31 
Offline

Joined: July 28th, 2005, 9:35
Posts: 2
now lets suppose i take not a 80GB - MK8026GAX, i take a MK4026GAX. Thats the little one with one platter inside. When i swap one platter from the 80GB to the 40GB.
I think this is more likely i can recover some data.
After recovery i swap the other platter.

If the hd wouldn't be so expensiv would have tried it.


Top
 Profile  
 
 Post subject:
PostPosted: August 2nd, 2005, 4:51 
Offline

Joined: May 5th, 2004, 1:59
Posts: 193
lmaa wrote:
now lets suppose i take not a 80GB - MK8026GAX, i take a MK4026GAX. Thats the little one with one platter inside. When i swap one platter from the 80GB to the 40GB.
I think this is more likely i can recover some data.
After recovery i swap the other platter.

If the hd wouldn't be so expensiv would have tried it.


brilliant,

first you could move the top platter from the 80GB,
install it into the 40GB and recover the data....
Then you could move the bottom platter from the 80GB
install it into the 40GB and the recover the data...

Then you merge the two recoveries into one big 80GB recovery.

Sadly none of this will work - why ??


Top
 Profile  
 
 Post subject:
PostPosted: August 2nd, 2005, 6:50 
Offline

Joined: September 30th, 2005, 7:33
Posts: 849
fujimax wrote:
BGman wrote:
I think the question is more fundamental. Even if you use a clean room the platters swap will always fail. No one can secure perfect match between the platters and the new spindel. Magnetic tracks would be always off-axis which means unreadable. This is only my opinion... Is there someone that can claim successful platters swap?


Hi BGman,

try it - trust me :wink:


I did try it several times, but without success... Could you reveal some more details?


Top
 Profile  
 
 Post subject:
PostPosted: August 2nd, 2005, 7:19 
Offline

Joined: October 28th, 2004, 3:58
Posts: 49
Heh lmaa Lets think a while.
You have 2 plates 0 and 1
And 4 heads 0, 1 ,2 ,3
The plates are sticked together and drive reads its f/w from 0 head (usualy)
So disasemblig drive you will mix the sectors from first and second plate and other probably won't be able to start the only with one of the plates.
But the most common problem is that even if this operarion succeed how you will get together two parts of data you recovered??? As drive use to write almoust randomly when it is not defragment?


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 13 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: Google Adsense [Bot] and 35 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group