Minecraft Forums

Okay so when I try to make it so the client/launcher can use more RAM then what it is set to as default, but gives me this error

"Error occurred during initialization of VM
Could not reserve enough space for object heap"

Not entirely sure why it is doing this since i have checked my Environment Variables and there are no Java variables set and my computer has 8 GB of RAM worth and I have tried using 2GB, 3GB, and 4GB of RAM and they all return this error code. Is there anyone that can help me with this?

I was using the codes for the RAM that can be found in this post.

http://www.minecraftforum.net/forums/support/unmodified-minecraft-client/tutorials-and-faqs/1871637-tutorial-allocate-more-memory-for-minecraft

That I do and I try to allocate 2G - 4G and it still gives me an error. I have no idea what I can do about it.

Only thing that actually works for me is when it is at the default RAM but when it is at that, I get lag in game when playing just single player.

You are almost certainly not using 64bit Java. That's what causes "Could not reserve enough space for object heap"

Just switching to 64bit Java often provides better performance without changing the memory allocation.

I did install 64-bit java and still the error occurs.

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