OptiPlex 990 Ultra Small Form Factor (USFF) Removal Guide for the Coin Cell Battery, Front IO Panel, Control Panel, Intrusion Switch and Power Supply | Dell UK
Dell Optiplex 990 SFF Desktop Motherboard D6h9t Main Board for sale online | eBay
Amazon.com: Dell PGKWF OptiPlex 990 Ultra Small Form Factor Core i3, i5, i7 Motherboard : Electronics
Gelöst: Optiplex 990 - Problem mit BIOS beim Start des PC - Dell Community