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IBM 19R2560 rev:2.8 Motherboard Socket 478 w/ CPU SL7E3 & DDR400 256MB MEMORY | eBay
74P1643 IBM System Board (Motherboard) for ThinkCentre (Refurbished)
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
IBM 19R2562, Socket 478, Intel Motherboard for sale online | eBay