By default, Minecraft starts up with only 1 GB of memory to work with. While Pixelmon may run with the default allocation, allocating more often helps performance and stability. This is especially true when also running other mods. This quick guide will guide you through the process.
Stuck on 1 GB? A 64 bit install of Java is required to be able to allocate more than 1 GB of memory. You can get a 64 bit Java download for your operating system by clicking this link. For Windows users, download Windows Offline 64 bit. Restart your launcher after updating.
|Start the AT Launcher.|
|Click on "Settings".|
|Click into the "Java/Minecraft" tab.|
|Click the "Maximum Memory/Ram" box and pick a higher setting.|
|Start the Technic launcher.|
|Click on "Launcher Options".|
|Click into the "JAVA SETTINGS" tab.|
|Click the "Memory" box and pick a higher setting.|
|Start the Minecraft launcher.|
|Click on "Installations".|
|Click on your Pixelmon Forge profile.|
|Click More options.|
|Replace "-Xmx1G" with a higher amount,
such as "-Xmx3G" (or "-Xmx3000M").
|Click "SAVE" to save your settings|
If you get stuck on any of these steps, or are having trouble finding the right amount to allocate or getting the game to run smoothly, check out the Fixing memory issues page or ask for help in the official Pixelmon Discord.