How To Allocate More Ram To Minecraft Server Whatifgaming Update Java Install Minecraft Launcher Launch Minecraft and sign in Click the Installations tab, hover over your desired version, and click Modify Under JVM arguments, change xmx2G to your desired RAM and click Save Start Minecraft and press F3 toThe next step is to substitute the RAM in MB parts with, as you may have guessed, the amount of RAM you want to allocate to your Minecraft server in megabytes In the example below, we've decided to allocated 1 GB of RAM to the server In megabytes this is roughly 1024 MB, so that's the figure we've gone with Minecraft ram allocation increase