If you still see a yellow exclamation mark in the Device Manager: Right-click the Unknown Device Properties tab and select Hardware Ids VEN_XXXX&DEV_XXXX code and search for it on PCI Lookup to identify exactly which component is missing a driver. For more technical specifications, you can refer to the YiHESZ X7-V124 Instruction Manual which covers headers and BIOS setup in detail. [1] Are you having trouble with a specific device error code in the Device Manager?