Before going on, here are the relevant components:
MSI 970 Gaming
AMD FX-6300
4 x 4GB Corsair Vengeance Pro 2133MHz
Windows 10 64-bit
When I first built the computer, I had 2 4GB sticks of Corsair Vengeance Pro 2133MHz but in task manager, it was detecting the full 8GB but saying that 4 of them were "hardware reserved". I tried many methods to fix this including going into ms-config and unchecking the "maximum memory" box, updating the bios, and rearranging the sticks. Unfortunately none of these worked and i was convinced that one of the sticks in the kit was bad so I bit the bullet and bought another kit of the same RAM (I was planning on upgrading to 16GB down the line anyway so it wasn't a big deal). After getting it all hooked up, my task manager now says that I have 16GB of RAM but 8.1GB hardware reserved (thus 7.9GB usable). I downloaded CPU-Z to see what it said about the RAM and it detected all 16GB of RAM but in the box labeled "Channels #" it says "Single" (remember there are 4 sticks of ram in the motherboard filling all of the slots). At this point I am at a complete loss as it seems nothing I do will give me back the 8.1GB of RAM being "hardware reserved". Any help or ideas would be greatly appreciated.