I read that other thread now. My guess is his CPU's memory controller burnt out, just a guess.
The vccio needs to be within 0.3V-0.5V of RAM Volts, here is my post on it...
I think if the differential is too high then the CPU will eventually kark it. Thats why I got low volt RAM and undervolted vccio.
Anyway a good spare $25-$40 PSU is always a worthwhile purchase, to rule out PSU's. I am running on my spare now.
After that, rule out the CPU or MB, whatever is the cheapest way. (you could try reseating the CPU first I suppose, and look for a burned socket pin, maybe, stuff like that).
Being impatient, after testing a different PSU, I would probably look at the led lights, and turn it off and on a lot with the PSU switch and power switch to see if I could trick it into booting.
Also this board has several different reset buttons, they have procedures for use... like holding down and pressing special keys etc... so look in the manual and try each one. I think flicking the switch behind the CPU and turning on and off then flicking it again and turning on worked for me once... weird cos it is just a USB allocation switch for that ASUS USB thing.
I just had a quick look... the other 2 are...
memOK and Rog Connect
Fiddling Rog Connect back and forth used to work for me when I had a bad power supply... don't know why.
You could try flashing the bios using the bios flashback method.
If this doesn't help your cpu has a 3 year warranty so you could rma that. I believe your board has a one year warranty so I'm not sure if it's still covered or not but I will say it's either the mobo or the cpu.
What psu are you using?