IBM Think Center S50: S50 Chassis - IBM Think Center S50: The Ideal Corporate Small Form Factor
IBM ThinkCentre S50 (8184-NM8) - Pentium 4 2.6Ghz 1Gb 40Gb HDD No O/S | A1 Used Computer Systems – Computer Parts, Repair Services
Refurbished: IBM Desktop PC ThinkCentre A50P(8193A3U) Pentium 4 2.40GHz 512MB DDR 40GB HDD Intel Extreme Graphics 2 Windows XP Professional Desktop Computers - Newegg.com
NOKOTION 42T0215 For IBM Lenovo X60s ThinkPad Laptop Motherboard System Board 48.4B501.05N L2400 1.66Ghz CPU DDR2 - AliExpress
IBM 73P0595 73P0781 REV 2.4 Socket 478 Motherboard | eBay