HI guys- my PC has everything installed and upon POST attempt it sends a beep code (which means RAM issue) and the RAM Led lights up, indicating a problem with that component. What should I do? I don't know how to clean RAM- should I return it? Also I'm paranoid and the CPU light is on for about 2 seconds then turns off- during building I was concerned I put too much pressure while installing the heatsink. Thanks for any help guys! I really appreciate it. Mobo is an Asus Z87-A