use only one stick of memory at a time to set it up... PCChips and ECS are both known to be a bit fussy about memory... If one doesnt work swap it with the other. Clear CMos and try again.
Dont worry about any panel connections accept the power switch.
None are needed accept that one to set up.
if that doesnt help... unplug EVERYTHING accept the CPU, HSF, (make sure thye HSF fan is plugged into the right spot on Mobo), 1 stick memory, Video card, Hard drive, and front power switch.
Good Luck, it can be frustrating