Changing Servers Memory
When you create a server, the amount of memory that the server uses is usually set by default to 2GB. In order to change this, it depends on how the server was created.
For CurseForge Modpacks
In order to change the memory allocation for CurseForge modpacks, you will need to contact the modpack creator for support with how to change the memory allocation for their server.
As CurseForge modpacks are uploaded by the modpack creator themselves, we have no way of knowing how to change the memory allocation for their servers.
You may try looking in the server folder for some sort of readme file or some other documentation that may help you, but failing that, please contact the modpack creator for support.
For Everything Else
You can change the memory allocation by going to the Servers tab in the launcher and then clicking the “Open Folder” button:
In the folder that opens, you can look for the LaunchServer script. In Windows you want the LaunchServer.bat file,
for Linux/OSX you want the LaunchServer.sh file.
For Windows
Once you’ve found the LaunchServer.bat file (note that it may just be shown as LaunchServer if you have file
extensions turned off), you can open it in Notepad. You can also right click the file and click the Edit in Notepad
option if it shows:
In order to change the memory allocated to the server, look for the line near the top of the file that says
set maxmemory=2G:
You can change the 2G value that is there by default to whatever you want. For example, if you wanted to change the
memory to 8GB, you would change it to 8G:
Save the file and then next time you start the server it will use the new memory allocation.
For Linux/OSX
Once you’ve found the LaunchServer.sh file you can open it in any text editor. Then look for the line near the top of
the file that says MEMORY="2G":
You can change the 2G value that is there by default to whatever you want. For example, if you wanted to change the
memory to 8GB, you would change it to 8G:
Save the file and then next time you start the server it will use the new memory allocation.