Older chipset drivers leave residual files. Perform a clean installation:
Once the correct driver is installed:
The most reliable method is to download the driver directly from the HP Customer Support portal. MPC107 PCI BRIDGE MEMORY CONTROLLER pci memory controller driver hp
Never download drivers from third-party “driver updater” websites. These often bundle malware or outdated files. Instead, follow these official methods: Older chipset drivers leave residual files
Despite the name, it rarely refers to your system RAM. In most HP systems, this "unknown device" is actually one of two things: (on older laptops). Realtek Card Reader (on most modern HP notebooks). These often bundle malware or outdated files
To troubleshoot and debug these issues, developers and administrators may use tools such as:
Seeing a with a yellow exclamation mark in your HP Device Manager usually means a core chipset component is missing its driver after a Windows reinstallation or update. 1. What is the PCI Memory Controller?