Error 53 - Memory initialization error. Invalid memory type or incompatible memory speed.

This is where you would have them placed based on the information given.

Error 79 - CSM initialization. Unlikely causes:-
GPU Failure, try using integrated graphics, disconnecting the GPU.
Faulty motherboard.
Faulty power supply damaging other things
Faulty incoming power, damaging your power supply. Inprobable rather than impossible.
Maybe Cause:-
Faulty CSM: Here's a link from Asus on how to remove the need for CSM by switching to UEFI / GPT to potentially isolate the fault:
http://rog.asus.com/tag/disable-csm/One you have switched to native UEFI support by switching to a GPT boot disk, your motherboard's Compatibility Support Module will be disabled, skipping the step the board seems to be failing on.
Hope you find this of help.