Does the motherboard of a computer act as the PCIe root complex? - Quora
PCIe System Architecture - Processors forum - Processors - TI E2E support forums
What Is a PCI Express Root Port? | Techwalla
Rapid PCIe 3.0 Root Complex IP Prototyping & Integration with DesignWare IP Prototyping Kits - YouTube
Enabling multihost system architectures with PCI Express switches: Innovation in design through multiroot partitionable switch architecture - PICMG Systems and Technology