Memory mapping or dumping utility

[kskim91]

I was wondering if there is a utility that can show you what and where things are loaded in the memory? I'm trying to max out a contiguous block of memory, right now with 2GB of ram, all I can get is 1.4GB and I need a little more than that. I've got the startup paired down, with only the barest essentials, but it seems that there is something getting loaded into memory which fragments the memory space and I'm trying to find what that is.

Basically something like the mem.exe command in dos.

Thanks.