Hello,

I recently replaced the shorted out PCB on my Seagate Barracuda 7200.7 Plus ST3120026A 120GB. The drive now spins up, is detected by the bios (and correctly identified) but will not show in windows explorer or disk manager. I got the exact same board for the model and part number and firmware.

Any help is greatly appreciated!

Thanks.

you need to transfer data from the damaged PCB to the newly replaced PCB...
If you don't have the hardware, $25 soldering iron from a local WalMart will do the job. Also it can kill that small chip in the process very easily.

how would i do that and which chip? I have searched the forums and it seemed like this was an issue for the 7200.11s only.

thanks for your response!

Could you post two or three good resolution pictures of your PCB???
If it has the ROM chip, then you can desolder and solder it back on the replacement PCB.
Mid-range soldring iron will do the job.

If it has the built-in chip, then you need to seek a data recovery firm to do the manipulation...

wow dude. in parallel i have been reading the forum regarding the tvs. used my multimeter to find the short on my original board (prior to reading your additional responses), ripped out the diode (wasnt even sure it was the right one just that it was shorted!), and now the drive WORKS with the original PCB!! I am now transferring my data. I really appreciate your help and this forum. saved many years of data, this forum rocks!

Just be careful - those TVSes had burnt out for a reason!

yes, i have successfully transferred all of my data, and I won't really be using the drive again. also, I have a new, much better quality power supply in my pc now (lesson learned!)

hi I have ST3120026A too, can you check what's the master password on yours ?

_________________

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Please (free) help :
http://rzr.online.fr/q/hdd#
how to unlock/format ST3120026A in max security ?
"ALPINE - 1_Disk M.14 01-16-03 11:51"