Most Linux distributions have left 32-bit x86 behind, but there are still a few great options for your old PC.

Linux Mint 17 has been released, you can get it in 32-bit or 64-bit. Plus: A review of Linux Mint 17, and user reactions to the release of Linux Mint 17.

a 32-bit PAE-enabled x86 processor or a 64-bit x86 processor (Linux Mint 64-bit requires a 64-bit processor. Linux Mint 32-bit works on both PAE 32-bit processors and 64-bit processors).

The rudimentary system requirements to run Linux Mint 12 are as follows: x86 processor (Linux Mint 64-bit requires a 64-bit processor. Linux Mint 32-bit works on both 32-bit and 64-bit processors).