Well to help find out if it's the RAM you can set the CPU multi to something lower so that way it will run the CPU lower than it should and won't change the RAM. If it boots, then you know it's the CPU and you might just need a vCore voltage increase. Only up it little by little until it's stable. That way you don't use more voltage than what might be needed. Also, check the OCing guides in the intel CPU section. There should be a sticky there called OCing "essentials" or something like that. The guide are great to look into. I'm also in the process of writing a limitations guide to find out the limits of a system to help be able to get the better OC on a system.
I'll check back tomorrow to see if you still need help.