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Seagate Barracuda 120GB ST3120827AS drive and swapping logic boards...

Had the ST3120827AS for a year or so, still in warranty. However, I  was upgrading one of my pc's at home and this drive had loads of room on it, was fairly new and I've always found Seagates reliable, so I copied loads of pics & family vids to the drive for safe keeping during upgrade, then reformatted and reinstalled stuff onto the drive where the pics and vids had come from.

When I came to plug the drive back in (it's SATA) I found it wasn't recognised in Bios. No panic, I thought, cable's not in right or something.  Soon realised that the cable was in and the drive just wasn't spinning up.  A month or so back as I found the drie decent and could get a good price, I happened to buy an identical drive.  "No problems" I though, "I can switch logic boards."  Can't see any burn damage on the old board, no burned smell around, so I don't think it's a power surge.

On to the logic board from the new drive... Firmware the same? Check. P/N the same? Sort of. Config the same? Hmmm, not really...

Anyhow, the drive now spins up, but isn't recognised by the BIOS still. I'm guessing I need to get a logic board a bit closer to my old one to achieve success here.  Anyone know what the relevant thing to look for is with this brand of drive?  Obviously not just the firmware as that's the same!
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carled
Asked:
carled
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2 Solutions
 
carledAuthor Commented:
Response from Seagate tech support:

"There are people who attempt to replace the circuit board or other part
 with another one from a good drive. However, Seagate does not sell
 replacement parts, and Seagate does not suggest this operation, as it
 could further damage the drive.  Also, it does not often work, because
 each individual HDD and its circuit board has its own set of operating
 parameters that are set at the time of manufacture.  When a new circuit
 board or other part with its own individual parameters is introduced, it
 will usually simply refuse to function, or will cause worse damage to the
 discs inside the drive.  If you still wish to try this operation, you may.
 However, be aware that Seagate does not recommend it, is not responsible
 for any damage that may occur when attempting this operation, and will
 offer no assistance in this endeavour.  Furthermore, this operation will
 void your Warranty."

Yeah, like they're going to know the circuit board has been removed and replaced, if I return it for warranty...

I wonder what the first thing they do at their data recovery lab is? Hmm... I wonder...
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rindiCommented:
I've had good experience by changing the PCB's of maxtor drives, but these would now be approx. 4 years old at least, and IDE models. Things may now have changed making it more difficult to exchange the boards. They do have to be exactly the same including the same revision though. Have you tried your disk in another PC?
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carledAuthor Commented:
Well, no, but it's irrelevant really. The new ST3120827As I have when plugged into the same power & SATA cable on my pc works fine, the old disk won't spin up and the old disk with new board spins up but won't be recognised.  The other SATA drive on teh second SATA port in the same PC is also fine.

What I'm trying to find is anyone with experience that has found out that I need the same config as well as firmware or something...
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rindiCommented:
Well, as I said with the maxtors, it needs the exact same drives and pcb revision, the smallest difference will not work. This is very likely still to be the same with seagates.
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carledAuthor Commented:
That being said, last year I swapped the boards of a 160GB Maxtor IDE and a 120GB Maxtor IDE and managed to get data off the seemingly-dead 120GB drive that way...  so maybe all is not yet lost.

Someone on eBay has a model with the same part number, firmware and the first part of the config is the same... maybe it's close enough, not sure...
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rindiCommented:
You'll have to try. Regarding what seagate mentioned about making things worse, that is very unlikely.
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gurutcCommented:
All I can add is that if you can get the exact same board to use, it should work.  I've done this at least a dozen times and it's worked every time.  Good luck good luck good luck!!!!

Not looking for points here!!!!!!!  Just supporting your plan, it is good.

- gurutc
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carledAuthor Commented:
I've ordered the one off eBay... fingers crossed!
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gurutcCommented:
Looks like another storage expert is in the making in carled!  - gurutc
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gurutcCommented:
Interested - gurutc
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gurutcCommented:
Cool with me - gurutc
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