Hello, thanks for having me on the forums here at motherboardpoint. I have a Supermicro H8SCM-F & have 4x sticks of Mushkin Proline 16GB DDR3-1600 & when I populate the Blue + Black slots it reports DDR3-1066 Unbuffered DIMMs in the BIOS, but with the Blue slots occupied only does it work fine with no BSODs or continuous boot loop like with all 4 slot's populated. Why is this? I contacted Supermicro & they said my memory isn't on the QVL & that's the reason. Your thoughts? I'm thinking I should have purchased Samsung module's.