Replaced Motherboard but Vista64 wont start

[USMC4Evr]

I replaced my motherboard with one that has nVidia SLi ability. I have installed all the hardware, the bios, drivers, etc. It recognizes the drives but not Vista. What did I miss? MSI Platinum Mobo, Quadcore 6600, 8GB OCZ Gaming RAM, 500 GB Hard Drive. Any help on configuring without reformating would be appreciated.

[Monty007]

So you just put your harddrive in the new motherboard......it wont work you will need to format.