Hi I've recently encountered this problem where the Q-LED Code on my motherboard would show 00 after a couple days (Re installed Windows a couple of times,shows AO but after drivers & update installations it goes back to 00) of use when earlier it was A0, I've been having this issue for a while and I build this system 2 mouths ago, at the time it was fine and had no issue, I've done some research and found out that the code means "Not in use" and usually it's a BIOS or hardware issue. So what I did was I replaced the motherboard and swap out the ram but still the same issue. I also have the CPU OC @ 4.6 GHz - 1.3v - Adaptive Mode; the strange thing is that the system boots fine, just the BOOT device LED switches on at the beginning but the goes off .
System Specs:
Intel Core i5 4690K @ 4.6 GHz
Asus Maximus Hero VII
Corsair Vengeance LP @ 1600 MHz
Crucial 256 GB SSD
1 TB WB Blue
Cooler Master Hyper 212 Evo
Corsair CX600M
System Specs:
Intel Core i5 4690K @ 4.6 GHz
Asus Maximus Hero VII
Corsair Vengeance LP @ 1600 MHz
Crucial 256 GB SSD
1 TB WB Blue
Cooler Master Hyper 212 Evo
Corsair CX600M