Earlier I created a thread in which I had suspected the system panel connections of being faulty, and the reason that my new computer wouldn't turn on, but now I am thinking otherwise. I switched out the motherboard of an older computer I have, and it turned on my computer when I pressed the power on switch on the pront panel. I also switched out my newer motherboard into my older computer case and tried to turn it on, but it would not respond. I did the same for my PSU, switching out an old PSU with my new one in my new case, and vice versa. The PSU isn't the problem, as it turned on when I switched it out to my older computer case (by then I had put my older motherboard back into that case) and it worked perfectly. I now have a sneaking suspicion that my motherboard may be bad, but if it is bad, would the LED light on the motherboard still come on when it is plugged into a PSU? Please help, I am at wits end and want to finally finish my new computer. Thanks.