Re: Can I add linux to this old desktop?
1. You need RAM.
2. As long as it is DIMM. SODIMMs are for laptops.
3. Not necessary, but you need one of you want to install it.
5. Only one SATA to the drive.
If the PC is old, you'll want to install something using the lighter desktop environments. LXDE is the lightest, followed by XFCE and MATE, which are both pretty much the same.
"Perception without comprehension is a dangerous combination."