Motherboard not compatible with GC?

Hello,

I'm running into some issues with my new GC(MSI GTX 760). As far as I can tell my motherboard should be compatible with my new GC however it doesn't seem to be working. I've already upgraded my power supply to fit the GCs requirements.

This is my current setup:
8GB RAM
Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (8 CPUs), ~3.4GHz
128GB SSD
1TB HDD
AMD RADEON HD7570 2GB-------Upgraded to GTX 760
HP 460W PSU --------------------Upgraded to 625W
IPMMB-FM (Formosa) Motherboard

I have no idea how to make it work, if someone can help me or point in the right direction i'd really really appreciate it.