I replaced casing and now motherboard won't boot! Only two leds flash once under the memory slot. Top led is yellow and bottom is green. According to manual I think these leds are northbirdge. I have double checked CPU, power supply, memory and graphic card installation. Everything seems fine to me. I have intel 980x processor, corsair XMS3 DDR3 12 GB RAM, 550W PSU.
Only help will be greatly appreciated.
Thanks