Get the lastest bios version, I think its E7A34AMS.180 My 1600X on a MSI B350 Tomahawk with G.Skill ripjaw4 3000 wouldnt oc until I flashed the bios to newest version. Once I did, I oc'd the CPU to 3.9Ghz and with A-XMP2 the ram to 2933Mhz with ZERO issues. I just manually entered 3900 in the CPU freq and selected a-xmp 2, i didnt changed anything else, left it all auto. PC has been running a week now at those setting and no issues.