Yeah I'm probably a bit further away that you thought. If I do end up needing parts I'd like to try and get em all in one shipment. As I got video outpur from the cards on first boot I'm gonna assume for now that they're OK.

The PSU and batteries all checked out with the multimeter. So power isn't the issue. I'm gonna try the hard drive next. Would I be right to try the hairdryer first? Seems the least extreme option. If so, do I heat it from the top or bottom (or side?).