WD7500AAKS PCB Swap

[bigmac99]

I'm attempting to recover data from a 750gb Western Digital Caviar SE16, model# WD7500AAKS-00RBA0. It spins up and still recognizes the partition, but any attempts at reading data results in IO errors. I figured I would attempt a PCB swap, and found a donor drive with the same PCB number (2060-701474-002 Rev A), but after doing the swap the drive is recognized as an un-initialized 2.2TB drive. Other possibly relevant info... the DCM values from the original and donor drives don't quite match. Original is HBRNNA2ABB. Donor is HARNHA2AAB. Any suggestions about where to go from here would be appreciated.

[Agent]

Not a PCB issue, and the reason the swap didn't work was because the different boards have different adaptives. And I don't THINK DCM matters with PCB swaps

[hddguy]

Not a PCB issue, and the reason the swap didn't work was because the different boards have different adaptives. And I don't THINK DCM matters with PCB swaps

This is right.

It is possibly weak or failing recording heads, and needs to be properley diagnosed. PCB is fine. If data is important get it looked at by a pro. If not, you need to try to get it imaged before attempting access to files.

[harddrivespecialist]

Let us know where you are located and we can refer you to someone local and inexpensive.

[bigmac99]

Manhattan, KS

[brumaire18]

Hi, I have a similar situation. I have attempted a PCB swap to recover data from a WD7500AAKS. After the swap, the drive spins up but is incorrectly recognized as an un-initialized 2TB drive. In my case, the PCB is clearly physically damaged (see photo).

The original PCB is numbered 2061-701474-300 04P. The donor is numbered 2061-701474-300 AC.

DCM values on the two drives do not match exactly.

Is there a better PCB match out there that I should try? Other ideas?

Attachments

[fzabkar]

Hi, I have a similar situation. I have attempted a PCB swap to recover data from a WD7500AAKS. After the swap, the drive spins up but is incorrectly recognized as an un-initialized 2TB drive.

If this is your board ...

http://img.alibaba.com/photo/331078189/ ... ipping.jpg

... then the adaptive data are internal to the Marvell MCU. These data would need to be transferred to the donor.

There is a vacant location at U12 (below the MCU) which would normally be populated by an external serial EEPROM, but you are out of luck. :-(

[poehere]

Hi, I have a similar situation. I have attempted a PCB swap to recover data from a WD7500AAKS. After the swap, the drive spins up but is incorrectly recognized as an un-initialized 2TB drive. In my case, the PCB is clearly physically damaged (see photo).

The original PCB is numbered 2061-701474-300 04P. The donor is numbered 2061-701474-300 AC.

DCM values on the two drives do not match exactly.

Is there a better PCB match out there that I should try? Other ideas?

Sorry this is not a DIY recovery job on this one. You are going to need some help on this one if data is important to you on this.Spain there is a lot of people all over Europe here on this forum. I am sure if you would like and request a few can contact you and see if you would like their help in this one.

[poehere]

Manhattan, KS

If you can ship your drive I know of one is Florida, one in California and one is New Orleans. Let us know if you are willing to shop your drive to one of these locations and we can have the person contact you on this one. Or if anyone would like to send him a PM and explain your location this one might be better yet.

[networkpc3000]

The original PCB is numbered 2061-701474-300 04P. The donor is numbered 2061-701474-300 AC.

you can try to repair it with good PCB. swap the chip which is burned on pics. second option is send entire drive to some one rebuild adapter and program into good PCB.
donor PCB match enough. no need to care about DCM or others think. you just need to transfer FW into good PCB. i can handle such case with reasonable price. please feel free to contact me by email or MSN. thanks.

[hddguy]

Hi, I have a similar situation. I have attempted a PCB swap to recover data from a WD7500AAKS. After the swap, the drive spins up but is incorrectly recognized as an un-initialized 2TB drive. In my case, the PCB is clearly physically damaged (see photo).

The original PCB is numbered 2061-701474-300 04P. The donor is numbered 2061-701474-300 AC.

DCM values on the two drives do not match exactly.

Is there a better PCB match out there that I should try? Other ideas?

Return original PCB to your disk, and send together to a professional DR firm. Without professional and seriously expensive tools you can not get this done yourself.