Solved Booting from SSD: How to force it in bios

Hello I made a major change where I installed a new motherboard from Gigabyte. At the same time, I re-installed an old hard disk so I can use it for data storage . Problem is, that old hard disk had a Win 7 installed and it boot from this one insted of my SSD drive. The SSD drive was already in my machine before the motherboard swap. I look up in my bios boot sequence and the SSD does...