Hello to all gurus and common people


Have you ever heard this sound again?
http://www.youtube.com/watch?v=uw12IvMcB7o


I got the same issue with my ST3 750 330AS seagate.
But mine never fell or something..
As said in the description, drive is not recognisable i BIOS.
And (i think) it doesn't spin. Just keeps making that noise.

Could it be firmware related? BSY state or something? (are there any other known hard drive states?)


I think i am going to try the "fix" for the 7200.11 seagates regarding the BSY state. (connecting drive with the chip and sending commands via hyperTerminal)
Any other suggestions?


Thank you in advance!

I can't access Youtube from the office, but if the drive is making any strange sounds then it isn't because of the firmware failure associated with the "7200.11 problem"


My guess (Just by knowledge of the failure modes being seen by these drives) is that the drive is making a buzzing sound for a second in ~two second intervals.


If so, the problem is either: Stuck spindle, Spindle Motor IC dead, both

There is a small chance that the heads are stuck to the platters, but I haven't seen it in these models (Only once, and the motor was seized as well)

Its not any clicking noise like the usual ones..
But yes i think that you "guess" is right!

I guess that if the case is the one u described u r pretty sure about whats wrong. am i right? (refering to Stuck spindle, Spindle Motor IC dead)


So if thats the case i see 2 things:
1) stuck spindle.. Nothing I know, that can really do @ home
any suggestions? any way to un-stuck it?
maybe sending spin up command a couple of time through terminal?

2) IC dead: change the PCB will work, right?



Do u believe that there could be even a slight chance that the issues is firmware related..?


Great thx for ur answer!

Motor / Spindle Problems

_________________
ZeBong
" что случилось в России - останется в России "
" Россия еще раз"

any chance that i fix this through terminal commands...?
i guess not, but worths asking..

Are there any suggestions on how to make it work again...?

Any tweaks like removing the PCB and manually provide voltage(maybe a bit more that usual) to the spindle, so it could work again?


Sorry for the questions-storm

thx again...

Sorry , is not easy to do it.

You should contact a pro in your country.

_________________
ZeBong
" что случилось в России - останется в России "
" Россия еще раз"

Yep spindle stucked...

_________________
Rescue IT Datarecovery service Sweden
Rescue IT Dataräddning Göteborg AB
http://www.rescue-it.se

Well i am in Greece and i do not know any pros around

Sure i know its not easy but i am not planning to spend money for recovery companies etc.

So i want to try by myself...


Any information about the spindle? Where it's pin corresponds?


Thank you:)

If the spindle is stuck you must have a clean room, and you will need custom tools to attach to the spindle cap and try to release the seizure. The problem is that once released, in most cases on these seagate drives I find that there is a "Eccentricity" or "Wobble" in the platters spin.

So in this case the only valid course of action is to transplant the platters into a new casing. Here you run into many issues because you must keep all of the platters in their original alignment and be sure that the inner rings and the spacers do not slide around as well.



To confirm that the issue isn't PCB related, get a matching PCB (that is known to work) and put it on your drive. If your drive spins up normally then the issue was PCB related. At this point you will need to transfer the ROM to the new PCB and then you should be good to go.


But I can say that 90% chance the issue is stuck spindle, only 10% is PCB.



Regards,

yes i see what you mean....

anyway, i will still try to connect the drive with a USB to TTL chip (cause i already ordered it)

i know about platters migrations etc..sure i can't do it on a multiplater disk at home..

I only don't understand what exactly u mean here



One last thing... I had updated the drives original firmware (SD04) with a new one from seagate in the past. which worked fine for a long time.
I don't know if my issue is related to this or whether its just a coincidence...

PS: I had flashed the AD14 firmware which later on appeared to be faulty (causing the know BSY state error, which is "fixable" though.. But as i said, my problem might have nothing to do with this...

DIY is awesome and I congradulate people for learning how to do stuff that they are not experts at, but a newbie doing a platter and head swap on a 7200.11 750GB hd would truly be a miracle.

_________________
Buy your friends Toshiba\Hitachi and your enemies Seagate.

Yes i totally agree with you.. i don't have the tools and there is no chance that I'll invest a multi-platter exchanger tool..

one more thing..

Assume that the problem is motor related and everything else (PCB) is fine. It should "responde" to hyperterminal commands right?

you can try it just for fun, not for DATA RECOVERY.

1 - you do not have a clean room
2 - need a special "tool" for keep the alignment
3 - good hands for the heads remove
4 - .etc...

_________________
ZeBong
" что случилось в России - останется в России "
" Россия еще раз"

most important is the alignment tool and as i said i do not have it
I don't even have a similar HD to migrate the platter:P

anyway.. i won't even try this!

I am just asking if we have any technical information regarding motor etc (like voltage.. is it 12V ?)

Yiassou,

If you are looking for someone in Greece who does data recovery, search this forum for Rafaela.

I have made a tool for freeing up spindle motors ($200 USD). It works on Seagate and other brands. But as Russ Winters pointed out, sometimes there is a wobble that causes problems with the recovery. And you have to be careful to spin the platters in the right direction and not contaminate the drive and ruin the heads.

I've used the tool successfully on a 750 GB Seagate. But then, I have the appropriate environment and some experience, too.

Kali Tehee,

Yianni (aka Jono)

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http://www.datasaversllc.com

Would you mind explaining a bit about your tool, please?

You just help the spindle to spin-up and then let it spin by itself
or
the tool actually spins the disks at all times and at the correct speed till you recover what you need? (i guess you mean the 1st)


And something more: are you familiar with the sound on the video? Have you recovered any drive like that one and you confirm that its a spindle stack issue?


Thank you very much!

PS: Eisai ellhnas h aplws 3ereis ligo th glwssa?

Need a tutorial , step by step, with video .

? ?

PM me with an e-mail address, and I'll send you the illustrated instructions.

Basically, the tool delivers force to free the bearing. That is only 1/2 of the battle. You have to get the drive to spin back up on its own.

Although I have done it with the heads in place, best practices suggest that the heads be removed so as not to ruin or contaminate them. You should not try that yourself!

And no, I am not Greek, but I am a Philohellene. I read & speak some Greek, but not fluently. When I was 17 I was part of a group of American volunteers who built a road in a small village in northern Greece (the group was affiliated with Η Αμερικανική Γεωργική Σχολή).

Yiannis

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http://www.datasaversllc.com

Thank you very much Yiannis!

Nice to hear that