Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
July 20th, 2011, 8:33
Dear Friends ,
Im new in this forum.
I have one Seagate 1 TB HDD.
Logic card is burned,so i arranged identical HDD with same model and FW and replaced logic card but its showing 8 gb in bios.
I want to recover this data.Any suggestion or procedure to recover that data.
Thanks
July 20th, 2011, 21:23
Post picture of your damaged pcb, low resolution, please.
July 21st, 2011, 9:59
Here damaged PCB'S Pic
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- 1 TB.jpg (107.82 KiB) Viewed 9897 times
July 21st, 2011, 15:57
Sorry, can't see well enough.
July 22nd, 2011, 1:21
Pic of pcb
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July 22nd, 2011, 4:23
What is the drive's complete model (ST3...)?
I will look for a compatible board in stock to see the board's layout and its components.
Either way, two things to do:
1) try repairing the board (if possible, because can not quite determine the damage extent from the picture)
2) reprogram ROM adaptives to a donor board
If you do not have soldering experience and equipment, then send it to a professional.
July 22nd, 2011, 4:59
Thanks alot first for repplying
Model is ST31000524AS /Firmware JC45
i purchased another identical HDD with same model and firmware replaced Logic card.It gets detected in BIOS But showing 3.9 GB in bios,i checked this disk by seatool it passes all test.Also showing 4 gb in disk managment in windows.
Regarding solder track of pcb are bad at burnt portion
July 22nd, 2011, 8:23
Alright, so I like stated previously I can not quite make out from the pic what is and what is not burnt, plus there can be other components that have been damaged as well.
So, your best bet is to solder the lower right ROM chip to your donor board (marked Winbond - see pic).
Make sure you know what you are doing (suggest practicing before working on the target drive).
If you are not comfortable than let a professional do it.
If you mess up, this will be very very expensive to recover data from.
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July 22nd, 2011, 8:27
Hello DRCP
We are pune based Data recovery specialist. contact me for further assistance .check PM
July 22nd, 2011, 9:04
Thanks alot Sir for your valuable suggestion.
Let me try and come back to you
Thanks
July 22nd, 2011, 11:24
hello
I know professional data recovery consultant in your city. if you want pro help let me know,
July 27th, 2011, 4:36
Dear Labtech,
I replaced winbond chip to donor board but now using donor board hdd shows again 3.9 GB in BIOS
July 27th, 2011, 8:43
Well, there are unfortunately additional problems with the drive. So, this is the end of DIY.
Have to seek professional DR service.
Make sure that you keep track of what components are where and explain to the professional what component belongs to what (for example, patient ROM is on the donor board now).
July 27th, 2011, 11:09
labtech wrote:Well, there are unfortunately additional problems with the drive. So, this is the end of DIY.
Have to seek professional DR service.
Make sure that you keep track of what components are where and explain to the professional what component belongs to what (for example, patient ROM is on the donor board now).
I agree. DIY here is useless and will only cause further complications....
July 29th, 2011, 8:31
Hello
Have you taken ESD care while removing eproms? I suspect rom corruption.This may make recovery impossible if original rom is dead.
October 6th, 2011, 2:02

Guys thanks problem solved diode short of original board replaced n got data
Thanks alot to all
October 6th, 2011, 3:35
A shorted diode was giving wrong capacity in BIOS?
October 6th, 2011, 3:44

nope used original burnt controller,replace diode and inductors.
October 6th, 2011, 21:57
Interesting...
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