I run Slackware 14.1 32-bit non-SMP on a Dell Latitude D505 with 256MB RAM. KDE won't run with so little RAM. It'll come up, eventually, but you'll regret having bothered. XFCE will run if you can tolerate long delays. I do as much as possible from the command line. I use Fluxbox if I have to have a graphical environment. It's still pretty slow, mainly due to paging. Running any browser is going to cause paging with so little RAM. Don't expect to open more than one or two Firefox windows with one or two tabs at a time.
I may eventually upgrade the RAM to 2GB if I can find some for free or for next to nothing. But this is really just an emergency system that I rarely use, so again, maybe not.
I find it interesting to recall how well Windows XP ran on it with only 256MB RAM back when it was new.
Last edited by Z038; 12-18-2013 at 08:22 PM.