How can I fix the “HWC8010 Config Missing: Riser 3 / Config Error: Riser 4” boot error shown by iDRAC on my Dell server 7960?

Issue Description

During server 7960 startup, the system displays several iDRAC and UEFI warnings related to PCIe risers. The exact errors shown on screen are:

• HWC8010: The System Configuration Check operation resulted in the following issue: Config Missing: Riser 3.

• HWC8010: The System Configuration Check operation resulted in the following issue: Config Error: Riser 4.

• UEFI0116: One or more boot drivers have reported issue(s). Check the Driver Health Menu in Boot Manager for details.

After these messages, the system offers the following options:

• F1 to continue and retry boot order

• F2 for System Setup (BIOS)

• F10 for Lifecycle Controller

• F11 for Boot Manager

The server does not continue normal boot without intervention. These errors suggest a problem with PCIe riser cards—either missing, improperly seated, or not matching expected configuration.