ADLINK cPCI-3620 - Manual (Page 88)

76 BIOS Setup Utility
8.3.8 CSM Configuration
You can use this screen to select options for the Compatibility
Support Module (CSM) settings. Use the up and down < Arrow >
keys to select an item. Use the < + > and < - > keys to change the
value of the selected option.
CSM Support
Enable/Disable CSM Support
Boot Option Filter
This option controls Legacy/UEFI ROM priority.
Network
Setting "OS_Select" to Windows 7 only supports PXE ROM
boot. Setting "OS_Select" to Window 8 only supports EFI Net-
work Stack
Storage
The Storage status is set by IDE Configuration > OS selection.
Video
The Video status is set by IDE Configuration > OS Selection.
Other PCI devices
Determines OpROM execution policy for devices other than
Network, Storage, or Video.