Dell Optiplex 990 to Capable Gaming PC Upgrade (1050 TI) + Benchmarks - YouTube
Dell OptiPlex 990 MT – Specs and upgrade options
Refurbished: Dell Optiplex 990 SFF - QUAD CORE Intel i5-2400 - 1TB 7200RPM HDD - 8 GB DDR3 RAM - WiFi - Dual Video Output - DVD-RW - Windows 7 Pro 64-Bit Operating System - Newegg.com
Optiplex 990 GPU Upgrade - Dell Community
Solved: Optiplex 990 GPU Upgrade - Dell Community
Optiplex 990, video card upgrade - Dell Community
Dell Optiplex 990 MT - 2600, 1050Ti, 8GB RAM, Noctua Cooler, 700W PSU, SSD and HDD. I know cable management isn't the best, but the side panel isn't see through! Thermals are
Dell Optiplex 990 Gaming Upgrade Video Card SSD RAM CPU - YouTube