Hi Robert,
Thank you for posting in Microsoft Community.
1. Did you try restarting the computer after making changes in system configuration > Maximum memory?
The reduction in available system memory depends on the configuration of the following:
• The devices that are installed in the computer and the memory that is reserved by those devices
• The ability of the motherboard to handle memory
• The System BIOS version and settings
• The version of Windows 10 that is installed
• Other system settings
Follow the Methods below and check.
Method 1: I would suggest you to run Memory Diagnostic Tool and check if it helps.
a) Right click on Start and select Settings.
b) Type “Diagnose your computer’s memory problem” in the search bar and press
“Enter” key on the keyboard.
c) Follow the on-screen instructions to run it.
Method 2:Update
BIOS and chipset drivers
This issue could also be caused due to outdated Basic Input Output system (BIOS) or chipset drivers. I would suggest you to visit the manufacturer’s website to download and install the latest BIOS and chipset drivers.
BIOS Disclaimer:
Modifying BIOS/ complementary metal oxide semiconductor (CMOS) settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting
from the configuring of BIOS/CMOS settings can be solved. Modifications of the settings are at your own risk.
Hope this would help. If issue still persists post back with current status of your computer and result of the proposed suggestion, we will be happy to assist you.
Thanks
