HP Compaq Desktop PC dc5850 (VS787UA#ABA) Sempron LE-1300 (2.30GHz) 2GB DDR2 160GB HDD Windows Vista Business Downgrade to Windows XP Professional - Newegg.com
HP Motherboard for Compaq DC5850 | Laptech The IT Store.
Illustrated Parts & Service Map
HP MS-7500 Compaq DC5850 Small Form Factor PC Motherboard- 461537-001 – Metal Logics, Inc.
HP Compaq dc5850 specifications
HP Compaq DC5850 Small Form Factor PC MS-7500 Motherboard- 461537-001 450725-002 | eBay