Replaced PCB on Hitachi Travelstar 30GB, right PCB?

[darlingm]

I have a Hitachi Travelstar 30GB laptop drive that isn't spinning up, and isn't being recognized by BIOS or Windows. I'm pretty certain it's the PCB causing the issue since there weren't any weird sounds before or after the drive's death, and the gold leads beneath one of the chips appears scorched a little bit, although not very badly.

I found a PCB for sale with matching model number (IC25N030ATCS04-0), P/N (07N8326), MLC number (H32687), and sticker on the PCB (07N9085 H69067).

Pictures of both hard drive labels and PCBs can be found at:

http://sigma.homeunix.com/hitachi

I got that PCB in today, and the drive still isn't being recognized.

Do I need to swap a ROM on this PCB? As shown in the pictures linked above, did the "P35" and "P32" need to match in the middle barcode (07N8326H326870P35 vs 07N8326H326870P32)?

[pcimage]

There is no NVRAM on this model. If the drive is OK, then the PCB swap should have worked.

Is it spinning up now, with the new PCB?