Allocating more than 1024mb for server?

[Triple_T]

Alright so recently my server has run into a bit of a problem. Whether through building up or exploiting the world, my server has all of the sudden gotten extremely laggy. Now I'm almost certain it's a RAM issue so I was wondering if there is any way that I can allocate more than 1gb of memory for my server. The dedicated machine that I run it off of has 3gb but the server wouldnt start if I tried putting in 3 so I had to use 1. I know it may be a very simple problem but Windows Vista 32x seems to only allow me to use that amount. Back when I ran the server on my Windows 7 machine I was able to allocate as much as I wanted so again I'm at a bit of a loss for this. Tried looking around but to no avail.

Thanks in advance.

[Iscamania]

I think you have a 64-bit system and you are running a 32-bit OS atm. Only with a 64-bit OS you could allocate more, so you should reinstall your system with a 64-bit version of Vista or even better, reinstall Windows 7 because Vista sucks hairy balls.

[Triple_T]

No argument there, well if it's because it's 32x then I guess that's the problem, thanks

[SinXX]

32x can only allocate 1.5GB memory to java Virtual Machines. I'm not 100% on the reasoning behind this, but that'd be the problem.

Vista sucks hairy balls.

This too.

[Triple_T]

That's incredibly strange, well looks like I gotta invest in a new OS