Greetings, I have a 800MHz DVI TiBook which started giving me logic board problems. I ordered a replacement 1GHz DVI logic board for the TiBook and installed it in exactly as mentioned in the PBFixit guide. When I start the system, I do not get the "happy mac" sound, and the display remains blank. I can hear the CD drive whirr and seek, and the side fan goes on briefly for a second or so. The Caps lock indicator comes on whenever I press the Caps lock key. If I keep the power button pressed, the system turns off after 10 seconds.

When installing a new logic board, what should I be doing as far as firmware or PRAM or anything of that sort goes? Am I missing any procedures?

Any help shall be greatly appreciated.

thanks
-- Saumil