Windows .exe 1GB RAM limit, on PAE-enabled system?

[Nephyr]

I'm running 6gigs of RAM (PAE-Enabled Kernel) on 32-bit Windows 7

Is there a reason that the FTB launcher only lets one use the game with 1GB of RAM?

It is to my understanding that processes on 32-bit (36-bit in this case) operating systems can use up to 4 gigs of RAM.

So... Is the limit placed there for people who don't understand this stuff, or will the game crash horribly, or is there a way that I can use more than a single gigabyte of RAM on this memory-hogging game of which I have more than enough memory for?

 

[ChickenMacNugget]

As far as I understand it; 32-bit systems can only allocate 1gb of RAM to Java in general, so it's not just a FTB problem, it also affects vanilla minecraft due to Java.

 

[Nephyr]

Eh, no.
I can run Java applications at 4 gigs of RAM, on a PAE-enabled system
I've run Tekkit with 2gigs max. (which is not a problem with me, since tekkit SMP would rarely need more than this). I've checked the task manager, I had minecraft running at 1.7gigs at one point...

Edit: Kind of frustrated
running an Nvidia GTX650, intel i7 2.67 8-core processor, 6 gigs of RAM, minecraft at 60fps on VSYNC, and I'm getting serious lag spikes
The lag spikes happen whenever the memory limit is reached.

 

[Nephyr]

Error occurred during initialization of VM
Could not reserve enough space for object heap
Perhaps I can fix this on my own...

 

[Nephyr]

Solved
Running with 2gigs of RAM now, or maybe 1.5? hasn't gotten that far yet.
Sorry for the constant posting, but the edit main post feature seems to be broken.