Last night after a light gaming session I decided to clean the dust off my CPU's heatsink fan. After reattaching it and plugging it back the crosshair came out with the a solid and constant red light from the DRAM LED. I tried to force boot it with the MemOk! button and it just made the red led to stop being solid and flashing instead.
I had no audio feedback because my case lacks a buzzer (will take an spare one from my job). I found a thread about a similar problem that suggested to take out all the components and the CMOS battery. I only took the battery out since it was very late and I needed to go to sleep. The post mentioned useating CPU (my combination of Frio cooler and Armor+ makes it a very long process) and testing RAM sticks one by one on each of the RAM ports until it can boot again.
I let the crosshair unplugged from power and with the battery out since last night and will do more testing during the night when I get back from work.
Does anyone has another suggestions? I have a lot of time for research on my job atm so i could take more advices to try at my home where I only got a smartphone to keep visiting the forums.
I hope it can be fixed without the need for RMA because I live in Central America and bought it from the USA, so doing the RMA will add a lot of cost to an imported motherboard that costed me like $320 after customs and shipping to my country.