in x86 architecture 4GB ram not all detected insted of 3.2GB ram is detcted
For compatibility with older architectures, we left the limitation of memory. In addition, with support for up to 64 GB using the kernel will run slightly slower. To remove it, recompile the kernel. To do this, run the command:
Processor type and features —> High Memory Support (4GB) —> 64GB
The kernel will be compiled and installed. Then restart your computer.