12 GB installed, 8 GB available for use.
12 GB installed, 8 GB available for use.
That's correct. Windows 8.1 64bits doesn't know what to do; I've tried many solutions. RAM functions properly with two 4GB modules, but adding a third 4GB caused issues. The motherboard supports up to 24GB. T_T
@Cazzer505 shared their thoughts on the topic. Regarding the modules, do they all adhere to the same specification?
All identical RAM modules, 12GB memory visible in BIOS settings
In Windows, verify the settings in the PC properties and use CPU-Z for additional details.