You might have to set this to Legacy.
Other PCI devices
Allows you to select whether to enable the UEFI or Legacy option ROM for the PCI device controller other
than the LAN, storage device, and graphics controllers.
UEFI First Enables UEFI option ROM first. (Default)
Legacy only Enables legacy option ROM only.
This item is configurable only when CSM Support is set to Enabled.
This another place you can look.
PCI Express Configuration
This section provides you with configuration options for the PCI Express bus, such as enabling/disabling
a specific PCI Express channel and speed configuration.
Other than that there isn't much to help you in the book.