Sabertooth 990fx r.2 memory OK button always on. Will not boot.

Charles_OC

Prominent
Mar 25, 2017
2
0
510
Windows 10 64 bit, Samsung 500 GB SDD, with EVGA 550 ti graphics card. Windows' warning that memory was low, so I changed the page size, but it not help. Showed 12 GB physical but 3 GB usable. So I installed a new G-Skill Ripsaw GB DDR3 1333 module, which matched the other Rispsaws 1333 already installed (this manufacturer's model is approved in the manual). Now two 4 GB and two 8 GB. The PC will not boot to BIOS and the memory OK red light stays on though I press it for 10 seconds.I have every combination of matched sticks, including solo sticks in every recommended slot. Also disconnected the SSD (it was showing driver errors earlier) and the other drives, including optical. Will not boot and the red light stays on. Thoughts? Thanks in advance.