How to allocate more memory to minecraft?

[Reuo]

Hi. I've tried to redownload minecraft many times, deleted all files etc. but I still seem to get the "minecraft has run out of memory" thingy. I have 8GBs of ram on my computer and i think that should be enough. I've tried the Xmx1024M -Xms512M code in a notepad and saved it as an .bat file. Can anyone help me?

[llDemonll]

Easiest way:

Start -> Control Panel -> Java -> Click the 'Java' tab -> Click 'View' under 'Java Runtime Environment Settings' -> Click 'System' tab -> Under 'Runtime Parameters' put the following:

-Xms1024M -Xmx2048M -jar

The 1024 is the minimum memory that will be allocated to Java
The 2048 is the maximum memory that will be allocated to Java

These values can be anything, but I'd recommend 1024 (1GB) for the minimum and 2048 (2GB) or 3072 (3GB) for the maximum depending on how much RAM your computer has

This changed the Java memory allocation for the whole system, so it's not the most ideal way to do it, but if you have extra RAM it's the simplest way to do it.

[sionus]

Easiest way:

Start -> Control Panel -> Java -> Click the 'Java' tab -> Click 'View' under 'Java Runtime Environment Settings' -> Click 'System' tab -> Under 'Runtime Parameters' put the following:

-Xmx1024M -Xms2048M -jar

The 1024 is the minimum memory that will be allocated to Java
The 2048 is the maximum memory that will be allocated to Java

These values can be anything, but I'd recommend 1024 (1GB) for the minimum and 2048 (2GB) or 3072 (3GB) for the maximum depending on how much RAM your computer has

This changed the Java memory allocation for the whole system, so it's not the most ideal way to do it, but if you have extra RAM it's the simplest way to do it.

You've got it backwards. -Xms is starting, -Xmx is maximum.

[llDemonll]

oops, copy-paste that code line from a website, didn't realize he has the max first and starting second

[Lagwin]

There many ways to do so...the one above never worked for me nor did some others i googled.

The one that did work was making a .bat file

What you need to do is make a .txt file and open it and paste

javaw -Xmx2048m -Xms1024m -jar "C:\Users\your pc name\AppData\Roaming\.minecraft\Minecraft.exe"

save it as .bat

When you double click it it should bring up the cmd window and launch minecraft...same rules apply from the above post if you need to allocate more up the Xmx

[Greandal]

I was having the same issue, are you using a x64 OS? If yes, installing Java for x64 fixed it for me as i was running a x86 version before. Might wanna try that aswell

[Fumantau]

There many ways to do so...the one above never worked for me nor did some others i googled.

The one that did work was making a .bat file

What you need to do is make a .txt file and open it and paste

javaw -Xmx2048m -Xms1024m -jar "C:\Users\your pc name\AppData\Roaming\.minecraft\Minecraft.exe"

save it as .bat

When you double click it it should bring up the cmd window and launch minecraft...same rules apply from the above post if you need to allocate more up the Xmx

When I double click it, it brings up an Error-Window: "Could not create the java virtual machine"

Why does this happen?

[Lagwin]

When I double click it, it brings up an Error-Window: "Could not create the java virtual machine"

Why does this happen?

Did you quite literaly copy and paste the line of txt? if so you'll need to change the part that says your pc name to what your pc name is to find out just open the start menu and it should be under your icon...could also be that your minecraft folder is in a different place in which case you need to find out where its located and type in the path which is the whole part starting from C:\

[Dhrizzle]

I was having the same issue, are you using a x64 OS? If yes, installing Java for x64 fixed it for me as i was running a x86 version before. Might wanna try that aswell

What he said.

[Restrot]

What the guy above said, bear in mind that if you update java in your browser (assuming you use a 32-bit browser), java will automatically download the version to fit the bbrowser, so you will have to manually download the file then install it, just google it.

[mariobros333]

I have 12 gb what memory i have to put in?

[Achaman]

buy more ram?! ive got 24gig and no problems

[Fuzzzie]

I have 12 gb what memory i have to put in?

Anything 2GB or over should be more than enough to run vanilla minecraft. More wont hurt but isn't necessary. If you're still having memory issues at that point check your java version etc.

[Flextt]

Simple solution: Go to http://www.minecraftforum.net/topic/...-options-news/, download Magic Launcher, start it up, go into Setup --> Advanced and give Minecraft the memory you want it to have.