You are prably using incorrect drivers for the SSD, unless your Old MB and your New MB use the same chipset - Doughtfull.
How about all the other drivers that were unique to your Old MB.
Generally when swapping out the MB for a "NEWER" version it is best to re-install the operating system. You can always change out drivers on a one to one bases, But things get left in the registry that can later bite you, and are difficualt to trace down.
I'd go ahead and do the reinstall prior to installing the new CPU and optical disk drive. Neither of these two components will be affected by doing the re-install before or after. If on a slim chance you have a problem with CPU/dvd instal you know it is these two components - not something in your setup.