Java Tutorial: Giving Minecraft more RAM

Technical assistance with our resourcepacks, website, or general help with Minecraft - including mods.
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Post 14 Jun 2014, 23:37

2GB isn't really very much. You have to keep in mind your Operating System is likely using about 300MB of RAM just to run, then you have whatever other programs using up more.

You may be able to use 32x textures, but that may still be pushing it depending on the amount of mods with textures.

You likely can't assign much more than 1280MB of RAM to Minecraft.
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Post 15 Jun 2014, 02:53

For about 3 weeks it has been working, but until today, when i crashed and minecraft ran out of memory, it worked fine. I have no idea what to do now... i have about 1700 allocated... it still is not working properly...
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Post 15 Jun 2014, 10:14

If it was working and suddenly stopped and nothing has changed in Minecraft then it would suggest something else is going on on your PC. Such as more programs running in the background, a need to defrag or check for errors or maybe some hardware dying.

You can try updating any drivers and/or Java.

You'll need to have a search for troubleshooting issues with your computer.

You can try posting on the MCF forums providing as much detail as possible as they may have some tips/tricks/checks you can do.
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Post 17 Jun 2014, 00:38

I defraged my computer twice and tried re-downloading the packs and addons, and i still get missing textures. i have 1700 mb allocaded, after deleting extra files. If anyone has any ideas on what to do now, it would be greatly appriciated.
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Post 11 Feb 2020, 05:43

So I am having a problem with this where my minecraft launcher doesn't have -XmX2G. It comes up with this: -Xmx5632m -Xms256m -XX:PermSize=256m
What do I do in this case?
-Also I have 16 gigs of ram my computer just hates minecraft and doesn't want to let it have more than like 4G of ram. I need like 6-7 gigs.

Update: Apparently my computer (which is made for gaming) somehow can't handle the 512 pack... It can handle games like Just Cause 4 and be only at like 70% CPU, but minecraft still reigns supreme at killing computers...
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Post 11 Feb 2020, 15:17

shredder11205 wrote:
11 Feb 2020, 05:43
Update: Apparently my computer (which is made for gaming) somehow can't handle the 512 pack... It can handle games like Just Cause 4 and be only at like 70% CPU, but minecraft still reigns supreme at killing computers...
It's Java, not MC :P
The Bedrock-Ed. runs fine, with 512x. But the Java Edit....
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