Hello,
Unfortunately the mobo is total wreckage I use the same and I will help you getting what you want ,but even when everything seems ok you wont be happy at the end.
First you need to upgrade bios to the last version 980De3/u3s3 with older bios does not recognize the memory as it is and will drop the rates for sure, when you are done you can insert memory in any slot it will be read as it must be.
Don't try to overclock your CPU I presume you are using FX series , if you clock it you will get a lot of ram issues , you just need to up bios , but still it wont be good, if you want to play heavy games change the mobo for sure, it does not fit well with FX series , I am not sure if it fits well with anything but nvm , hope you fix it .
Regards