Do I need to reinstall OS after decreasing memory (RAM)? Originally I had 8GB while now only 4GB.
OS: Ubuntu 14.04.3 LTS
Linux p6-2315el 3.13.0-76-generic #120-Ubuntu SMP Mon Jan 18 15:59:10 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Do I need to reinstall OS after decreasing memory (RAM)? Originally I had 8GB while now only 4GB.
OS: Ubuntu 14.04.3 LTS
Linux p6-2315el 3.13.0-76-generic #120-Ubuntu SMP Mon Jan 18 15:59:10 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
No you don't have the reinstall the OS but i will suggest add a swap partition as you might need it.
You do not need to reinstall Ubuntu , every thing will run fine. It will automatically detect that you have upgraded your ram.