I just built my desktop and when i turn on my computer everything seems to be working fine. The Motherboard, GPU, Hard drive and SSD and heat sink all seem to be working. But when i connect it to a monitor it will not show. It shows a mouse on a monitor then counts down from 5 and then turns off. I tried connecting the monitor to a laptop and it works fine. Its a Samsung LS22A100N. My computer specs are a i7 2600k, Sabertooth p67 MoBo, Patriot 12gb RAM 1600mhz, EVGA 560 TI SC, Cooler Master 1200W PSU, OCZ 40gb SSD, 1TB Seagate HDD. My cousin thinks it may either be the MotherBoard/CPU/GPU The motherboard has a green light at the bottom so i think its fine. Its a new CPU so there shouldn't be anything wrong with it. and idk about the GPU so i think it may be the GPU.