MBP late 2008 HDD and SSD setup

I just upgraded my old MBP to SSD and put my old HDD in my optical drive space for a duo-HD setup. I am running Yosemite on the SSD.

I wanted to use my HDD as a Window 7 setup. However, when I go into boot camp to do this, my computer shuts down and hangs. Is this because of the boot sequence of optical drive comes first? Or is this due to something else?

Can I not run windows on the old HDD?