How to Fix GL_OUT_OF_MEMORY Crashes with the GPU Memory Leak Fix Mod

Understanding the Crash

GL_OUT_OF_MEMORY means your GPU ran out of video memory. In modded Minecraft this is rarely because your graphics card is genuinely too small — it is usually because something is leaking GPU resources and never releasing them. The Fix GPU Memory Leak Mod patches several of these leaks, but you still need to give it a clean slate to work from.

Steps to Recover

1. Fully close Minecraft. Do not just quit to the main menu — end the process, because leaked GPU memory is only released when the game process dies.

2. Relaunch and go straight into the world or server where the crash happened. If it loads without the error, the leak patch is doing its job.

3. If it still crashes, lower your render distance and turn off fancy graphics temporarily. This reduces the total GPU memory your game requests, giving the patched code more headroom.

4. Avoid rapidly toggling resource packs, shaders, or fullscreen mode in one session. Each switch allocates new GPU resources, and repeated switching is a common trigger for the leaks this mod targets.

5. If crashes return after a long play session, that is a sign of a leak the mod does not cover. Note what you were doing right before the crash — dimension changes, large redstone contraptions, and heavy particle effects are common culprits — and report it.

Why This Works

The mod removes the leak, but memory already lost before you installed it stays lost until the process restarts. A fresh launch is the reset button.