Windows 10 RAM Issues

[MacheteFFS]

I just recently notice that my PC which currently has 16gb of Ram installed 4x4gb sticks, however in the PC info it shows "16.0 GB (7.90 GB usable) after various google searching on the issue I have done all of the basic techniques to try to resolve this. Turning off paging. Max memory size from msconfig. I cant find any kind of option for memory control inside the system BIOS either. This pc is an HP H8-1234 that I have upgraded. I will list other specs below. I have tried several different options as far as trying to figure this out such as swapping them around, removing one to be able to have a free one to see if one was bad. A friend that has a computer tech shop has swapped them to see if mine were bad with no luck. The PC is registering the sticks so that confuses me. Ive noticed when the PC is booting up it says Dual channel however when looking on programs once its booted up fully it says Single channel. 

 

• Motherboard: M3970AM-HP (Angelica2)
• OS: WINDOWS 10 Pro 64-bit
• CPU: AMD Fx-8350
• RAM: 16GB
• GPU: AMD XFX RX 580 8gb
• HDD: 512gb Samsung SSD, 1TB Toshiba HDD

[Jsmith2211]

Swap the ram slots around. Try reseatingm use one stick to start with in slot one. See if it is detected. Try the same one in slot 2 and see if it shows etc. Then if it shows in all 4 try the same thing with the other sticks. If they all show try it with 2 at a time and keep going. Unless they all show in bios in which case install Ubuntu. 

[MacheteFFS]

All appear to be working. Tried adding them one at a time and up until it got above 12GB ram there was only a .2 GB variation on the usable side. So with 8gb (7.8 Usable) and with 12 gb (11.8 usable) once it got higher than that currently at 16gb (11.8 usable).