Seagate Barracuda 7200.11 500GB Dead?

[corematter]

Hi,

I have a Seagate Barracude 7200.11 500GB that was in a Maxtor Shared Storage II and I accidentily (I think) plugged in the wrong AC adapter. Since then it would not power up. At first, I thought it was the NAS itself but when trying to plug the HDD into my desktop, the desktop would not boot up. No power at all. With the HDD not plugged in, the desktop powers up and boots. But whenever I plugged the HDD in, the desktop has does not boot or power on. So does anyone know what the issue is? Looking at the PCB, I don't see any indication that any chips are fried or anything..


Model: ST3500620AS
PN: 9BX144-033
Firmware: DE12
Date Code: 009234
Site Code: KRATSG

Please help me, all of my 2 yr old son's photos and videos are in there and I need to recover that data.

Thanks in advance.

[harddrivespecialist]

Search TVS on this forum.

[corematter]

Thanks.. I don't know where is the TVS diode(s) on my HDD PCB and I don't have a surgens hands to unsolder them. Unfortunately, there are no exact replacement PCB on sale for my HDD on ebay. I guess I have to wait until there's one.

There are some are the same model number ST3500620AS but the firmware is : HPXX instead of DE12. Would switching the PCB with one of these work? Just enough time for me to exact the data out of my HDD?

Thanks.

[fzabkar]

You probably have a shorted 12V TVS diode. The fix is to remove it, with certain provisos.

See the following thread for detailed instructions and photos:

http://forums.seagate.com/stx/board/mes ... 109#M18109

BTW, your DE12 Dell firmware is affected by the BSY bug. You need to update it, after you have repaired your drive.

See ...
http://forums.seagate.com/stx/board/mes ... d.id=17861