While looking over a box of CPU's at the local recycler I found a Cyrix 486 DX2 80? and a 486 DX4 100 that I snagged (seems like most 486's are AMD and Intel). So I started thinking about what the most uncommon 486 CPUs to collect are (what to look for). I also found a TI? 486DLC that fits in a 386 socket (normal pin type).