![IBM ThinkCentre S51 Desktop PC - Intel Pentium 4 3.2GHz, 1GB DDR, 500GB HDD, DVD-ROM, Windows XP Pro (Off-Lease) at TigerDirect.com IBM ThinkCentre S51 Desktop PC - Intel Pentium 4 3.2GHz, 1GB DDR, 500GB HDD, DVD-ROM, Windows XP Pro (Off-Lease) at TigerDirect.com](https://images.highspeedbackbone.net/skuimages/gallery/large/M977-22101-01.jpg)
IBM ThinkCentre S51 Desktop PC - Intel Pentium 4 3.2GHz, 1GB DDR, 500GB HDD, DVD-ROM, Windows XP Pro (Off-Lease) at TigerDirect.com
![Refurbished: IBM Desktop PC ThinkCentre S51 PCW-IBM8172/XPP-R Pentium 4 3.2GHz 1GB DDR 80GB HDD Windows XP Professional - Newegg.com Refurbished: IBM Desktop PC ThinkCentre S51 PCW-IBM8172/XPP-R Pentium 4 3.2GHz 1GB DDR 80GB HDD Windows XP Professional - Newegg.com](https://c1.neweggimages.com/ProductImage/83-108-258-01.jpg)
Refurbished: IBM Desktop PC ThinkCentre S51 PCW-IBM8172/XPP-R Pentium 4 3.2GHz 1GB DDR 80GB HDD Windows XP Professional - Newegg.com
![Buy IBM Lenovo Thinkcentre S51 8171 P4 3.2Ghz 1Gb 40GB Win 7 Home with CDROM + 17" LCD + keyboard + Mouse at Morgan Computers Buy IBM Lenovo Thinkcentre S51 8171 P4 3.2Ghz 1Gb 40GB Win 7 Home with CDROM + 17" LCD + keyboard + Mouse at Morgan Computers](https://www.morgancomputers.co.uk/images/products/14726/9789/9789_large.jpg)