Seagate ST3500320AS doesn't power up

[pclab]

Hi

I got this HDD that doesn't power up. Obviously, I tought of PCB (it was tested and nothing).
So I ordered a donor HDD.
Today I got the donor.

So I swapped the ROM.
But the same happens.
That is: The original ROM on donor PCB and it doesn't power up.
Tried the Original PCB with the Donor ROM, also doesn't power up.
Swapped ROM again (original to original and donor to donor) and the donor is OK.

Can a corrupted ROM cause this faillure?
Thanks

[AJ2008]

What do you see in terminal? Do you hear any noise from within the media on powering it?