Help please!

Ok, So I've slowly been putting together my first gaming PC and it's all been going great untill today when I got my last piece of the beast....the GPU.  I have had my pc up and running for about 2 weeks now, just using the intel HD graphics however now after I've installed the gpu it wont even start.


i7 3770k (stock)

MSI z77 G45 gaming


Seasonic 650w 80 gold

samsung 840 ssd


I have no idea what's wrong, and I've checked a bunch of other places.  Power is plugged into GPU and PSU (its modular and in the spot designated pcie/cpu).  The GPU is all the way into the pcie lane.  all other plugs are in fully.  I also uninstalled the Intel integrated graphics drivers and installed the EVGA ones.  

I have no idea what else to do PLEASE HELP!!! 

I had a similar problem with a customer who wanted to upgrade a PC, build with MSI Z77A-G45 GAMING + Intel i5 3570K, adding Radeon HD 6950 graphics card. Upgrading to the latest BIOS version from MSI solved this issue.

If you can get to bios, make sure its set to display PEG and not IDG.