I use bunsenlabs helium on my old vaio a series laptop. I use a 32 bit non pae build bc it’s a pentium M that might not support pae. It uses a window manager over a desktop environment.
I’d recommend using a 32 bit distro as they tend to take up a little less ram.
Also I’m on a 4200 rpm PATA HDD. It has 2 gb of ddr ram. It’s slightly too old to get ddr2 which is unfortunate.
Docsis 4.0 is still cable, idk about other things