I have an IBM X31 (1.4Ghz, 1GB RAM, 320GB 5,400RPM HDD) running Windows 7. Would putting an SSD in it affect the "snappiness" of the machine? I'm not looking for raw power; I just want programs to open more quickly, Chrome to scroll more smoothly, freezing to occur less often, &c.
there's one major issue i see - the X31 is a PATA based system - most SSDs are SATA based. You won't be able to use the more common SATA SSDs with it - there's very few PATA models and they're usually expensive enough that its not worth putting a . Even if there was PATA based SSDs, the interface would be a bottleneck.
IMO upgrading the ram would be a more worthwhile upgrade if possible - upgrading it to the maximum 2 gb it supports is likely to be a bigger improvement than upgrading it to SSD.
considering its age reverting it back to the stock XP, and putting the money for the SSD into a more modern system might even be an option worth exploring.