What is the relevant memory portion from Installed Physical Memory to Pagefile (toward the bottom) of MSINFO32.EXE ?
Mine looks like this:
OS Name Microsoft Windows 10 Pro
Version 10.0.15063 Build 15063
...
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 7.75 GB
Available Physical Memory 5.06 GB
Total Virtual Memory 11.2 GB
Available Virtual Memory 8.47 GB
Page File Space 3.42 GB
...
If was having memory issues I would probably cut the pagefile space back to about 1.25GB. Note: I have disabled hibernation so there is no hiberfil.sys. Task Manger shows 2.7GB in use, 5.0 GB available. Resource Monitor will show how the 2.75GB is being used, on the bottom line mine shows 4055MB in "standby" and 1190MB "free". All vary as I add and remove programs.
From MS, "Standby memory are Pages of physical ram not actively being used. These are still left in physical ram but will be repurposed first by the memory manager (either returned to the active list or zeroed out and reused) if something needs physical ram for active pages."
As to sticks/slots that is what is reported to MS, not necessarily what is.