Does the system boot and work? If so ignore the light, I've ran a few systems where the dram light would stay on after boot for some reason but never had an issue. Heck my current board in my sig does it every now and then.
If it wont boot, How are you installing the ram? If you have only 2 sticks, you have to stager them, Want to use A2 and B2, some boards will have a fit if not this way, here is and example pic, the slots in yellow
https://d1q3zw97enxzq2.cloudfront.n...4_PjPN.width-1000.bgcolor-000.format-jpeg.jpg
I know its not your board but will still apply to yours
4 matching sticks, doesn't really matter, fill all 4 slots.
Still no post, unplug the PC from the wall, and hold the power button down for a few seconds to drain any power left, and pull the little button cell battery from the board for a few minutes, I'd wait at least 5 min, its conveniently under the graphics card slot on your board....
Install the battery back how it was, positive side facing away from the board, and install the GPU again, and see if it will boot, may take a while and restart a few times on its own.
Hope this helps, Good Luck!