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 Post subject: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 21st, 2013, 11:48 
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Joined: March 13th, 2013, 11:51
Posts: 9
Location: Missouri
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Platters don't spin and the drive makes a high and low buzzing sound instead. (listen below)
https://soundcloud.com/bryan-chandler-u ... ding-3-wav

Wondering if I should open the drive & lift the heads off the platter with combs.

What do the guru's think?

Thanks.


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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 21st, 2013, 15:25 
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Joined: June 23rd, 2008, 11:26
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Location: Austin, TX
Stiction.... but the heads could also be bad at this point to. The drive will need to be opened to determine how bad it is inside. If you have never done it I would not recommend it. This is an easy fix for a pro if the heads are not damaged as well.

And before someone tells you to try a "Impact" fix by hitting the drive on the side of the table to get the heads to move back to the ramp... don't do that...


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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 21st, 2013, 16:28 
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Joined: November 29th, 2006, 10:08
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Certainly sounds like it could be stiction, but I have also seen these where the heads are badly mashed into the landing ramp, and preventing the platter from spinning.

The magic "percussive maintenance" trick would do severe damage in this case.

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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 22nd, 2013, 4:24 
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@op
it really depends on how you interpret risk and how valuable your data is to you. Very much like all other repairs in our lives... however with HDDs most of the time is one wrong move and game can be over.

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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 22nd, 2013, 13:32 
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Joined: March 13th, 2013, 11:51
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Location: Missouri
@Spildit
We are the data recovery firm. :) I just trained with Scott Moulton, so I've already opened a few drives. Even got one reading again! lol. We have DDI/PC3000/Clean bench.

Thanks for the advise. I'll open it up & take a look.


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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 22nd, 2013, 17:11 
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Joined: December 27th, 2006, 10:15
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Location: Belgium
Remember the platters are made of glass!
To much percussion and you have a chinese puzzle :D

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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 22nd, 2013, 17:19 
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Joined: April 3rd, 2011, 0:19
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Definitely stuck heads. Most often with a gentle touch the heads can be unstuck without destroying the heads, but certainly must be done in a clean room. I charge $750 for this procedure at my lab, but will take $100 off if it's a personal drive not used for business.

Anyone asking more than that is just ripping you off for a simple procedure.

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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 22nd, 2013, 17:23 
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Joined: April 3rd, 2011, 0:19
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Location: Providence, RI
Oh yeah, by a gentle touch I'm referring to how you spin the platters. You really should use an unstuck tool not your hands. And if you try something stupid like pulling at the heads themselves your sure to ruin them.

Just a really gentle yet firm counterclockwise pressure on the spindle can usually get it spinning, then just keep it spinning until the heads come back to their resting position. (I didn't notice your earlier post about having a clean bench before).

I wouldn't generally use the combs unless it's really really stuck. You'll cause less damage by spinning the platters.

Best wishes with it. Let us know how you make out. :)

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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 25th, 2013, 14:17 
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Joined: March 13th, 2013, 11:51
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Opened it up and stiction was the right answer.

http://i.imgur.com/7TPPBV6.jpg

Moved the heads to the parked position via good old plastic pill wrapper "combs" and got it reading.

Thanks for the advise!


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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 25th, 2013, 20:06 
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Joined: April 26th, 2012, 1:52
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I undid stiction with some gentle temperature cycling. Cool the disk to about 40F and heat it to about 130F. Nothing extreme and little risk of condensation.

Just be sure the foil sticker has no wrinkles.

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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 25th, 2013, 20:47 
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Joined: April 26th, 2012, 1:52
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A disk in transit from mfg will experience excursions more "extreme" than that..

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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: March 26th, 2013, 0:18 
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Joined: August 19th, 2007, 17:30
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I have my doubts with this recovery mainly due to the scratch in the center of the platter.

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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: April 26th, 2013, 16:01 
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Joined: March 13th, 2013, 11:51
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Location: Missouri
UPDATE:
It was stiction. Lifted the heads and was able to image on DDI successfully.

Thanks for the help all!


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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: April 26th, 2013, 16:25 
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I agree with thatdellguy. I don't see how it is possible that the top head survived after making that scratch. Maybe the top head isn't used, but I think it would be on a 160 GB of that series. Even so, there is a chance that contamination will cause cascading failure if it continues in its present condition.

Let us know how it goes, if you get most of it, or what percent images before it fails.

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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: April 26th, 2013, 16:46 
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Joined: November 29th, 2006, 10:08
Posts: 7864
Location: UK
We had a strange one in last week, a 160gb ZCT0 I think it was.

These are usually single platter two head drives, but this one was two platter and two heads!

H0 vacant, H1&2 used, H3 vacant.

But top platter had massive scratches on it.

As the drive was unopened and H3 was missing, then it MUST have been like that from the factory.

Of course we got it, but wasn't easy!!

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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: April 29th, 2013, 11:47 
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Joined: November 9th, 2006, 15:15
Posts: 2984
bryan.chandler wrote:
Opened it up and stiction was the right answer.

http://i.imgur.com/7TPPBV6.jpg

Moved the heads to the parked position via good old plastic pill wrapper "combs" and got it reading.

Thanks for the advise!


Hope you secured the HSA screw before moving the heads...


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 Post subject: Re: Stiction? WD Scorpio Black 2.5" makes hi/lo buzzes
PostPosted: May 5th, 2013, 5:18 
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Joined: August 13th, 2008, 13:10
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a clear case off sticktion.

as Spildit sais there are very big dust particules. Opening HDD case must be done in a clean room.

and as thatdellguy said is strange the center scratch in plattern.

But congratulations for bryan.chandler.


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