Make sure all your connections are snug tight. Do you get POST Beeps? If not, use only 1 ram stick and connect your monitor in and test. If it doesn't work, try another ram stick in the same slot, still doesn't work, change dimm slots.
If you get beeps.. It's likely to be a connection error.
If you need help with connections, check your manual.
Yea, I did. Turns out it was the GPU, I'd swapped it out for my older one and everything booted up nicely. Display didn't show up cause the 7770 might be DOA?? or is the setting different on that card?? Can I do anything to test if the card is DOA??
Thanks for the tip!