Got these 3 dell towers the other day . All of them have Windows XP on them. The two towers are a Dimension 8300 and a Dimension 8400. Both have a Pentium
Dimension 8300 Setup Diagram
DELL DIMENSION 8300 SERIES DESKTOP USER MANUAL | ManualsLib
Dell Dimension 8300 Windows Recovery Restore Boot Disk DVD USB ISO & Drivers
Dimension 8300 Service Manual
Dimension 8300 BSOD & Not Loading into Safe Mode - Dell Community
Dell Dimension 8300 | ZDNET
Support for Dimension 8300 | Drivers & Downloads | Dell US
How to Set BIOS to Boot from the USB Flash Drive (Apply to Dell, Asus, Lenovo, Sony, HP, Acer, Toshiba, Samsung, etc.)
Dimension 8300 BSOD & Not Loading into Safe Mode - Dell Community
Dell Dimension 8300 Windows Recovery Restore Boot Disk DVD USB ISO & Drivers
Dell Optiplex: How to Set BIOS to Allow Boot From USB Drive - YouTube