I have a Biostar TA75MH2 and I've been having some weird issues. I insert two G.SKILL Ripjaws X Series. 4GB each but the motherboard can only read one. Bios says that the one on the first slot works and the one in the second slot is not available. However, when I go into CPU-Z it says that they both work and they're readable but its in single channel. Any tips on how to fix this?