Also, I just changed to a Gigabyte GA-970A-UD3P. I can answer any questions and appreciate any help. you probably have your os in 32 bit. #4. DoubleP2k. Sep 25, 2015 @ 12:14pm I am in 64-Bit Win10 Using Resource Monitor I found that 6178MB of RAM are Hardware Reserved. Last edited by rotNdude.