No matter what I do, I cannot get my computer post and all it does is stop at Boot_device_failure LED. I have done the following: Cleared the CMOS reseat the ram (even moved the slots and played with one then the other in all 4 slots) removed my graphics card I really cannot thing of anything else that will cause this. No external hard drives or anything are connected either...
Got a different HDD & PSU to test with? I'd say try building it outside the case but I doubt that will make much difference ( if it was shorting out on the case it would do it when you built the system to start with )- sounds more like either the mobo or psu has croaked it unfortunately...
It turns out it was the mobo. I tried EVERYTHING I could think of and just gave up. Took the board back to MC and replaced it with a new board (the UD4 ^_^) and what do you know. Thing works.