it seems like there are allot of people having problems with the CPU light, apparently pushing the mem ok will allow the system to boot but with no bios post message. Bios version 1102 is the culprit, but there are people running 1102 with no problems.
Generally speaking from what I have read about this issue it seems that I am on he right track with the grounding issue. There is a short, most people have been blaming the BIOS update but when they examine further they find that they have a case grounding issue.
Those large offsets in your In-Win Griffin case may be too wide and are touching some motherboard components. I did read a solved issue regarding a reset button causing a short the link is bellow. http://www.overclock.net/t/1256839/sabertooth-990fx-bios-1102-red-cpu-led/10
I really want to get this solved for you, I hate leaving issues un resolved.