I just got my MVF back from an RMA episode. Well, they replaced the board, so it is not my original board. Anyway, I get the "new" board installed with all the peripherals and powered it up - my go button LED was flashing too. The clear CMOS was not, so it was not exactly like yours, but I tried everything. Swapped ram in different slots, and even with no ram, the go LED would still just flash. No trouble code LEDs, no fans spinning. Nothing. Reseated the CPU, tried different ram, different PSU. Took the GPU off, disconnected all the SATA cables. Still nothing but the flashing go button LED. Ready to give up.
Then I took the mPCIe Combo card off and it fired up and got into the BIOS screen. THEN I couldn't get windows to install - it would hang on the "Copying Files" prompt. Tried 6 or 7 times. Then tried to put a Win 7 ISO on a flash drive for a USB install - no luck. Burned a new Win 7 DVD - no luck. Finally put all the Win 7 files on the bare SSD - booted to it and Windows started to install from the SSD. Didn't think you could install the OS from the same drive. Well, it worked - that was one fast Win 7 install. Put the mPCIe Combo back on and it works.
ASUS Rampage V Extreme BIOS 4101 | i7-6950X | Thermaltake Core X9 | G.Skill F4-2800C16Q-32GRK | Cooler Master Nepton 280L | Dual Samsung 850EVO 500GB SSD | PSU: DARK POWER PRO 11 1000W | 3TB & 4TB HDD | NVIDIA GTX Titan X | ASUS 24x DVD±RW Drive | Win10 Pro