While booting a Dell PowerEdge r720, UEFI crashes, making it mostly unbootable. This exception occurs after pressing F2 to get to "F2 System Setup" which means getting to the menu to switch back to BIOS boot mode is NOT possible. Using the F11 boot menu gives lets me get to the LifeCycle Controller or successfully boot the OS. The OS seems to work fine once launched, but cannot get to the part of the LifeCycle Controller to switch to BIOS boot only.
The system detected an exception during the UEFI pre-boot environment. rip 78592CD3 DellFormsProcessorDxe.efi +010CD3 <-- Crash occurred here
The R720 had booted successfully several times after adding an unsupported "Dell EMC Boot Optimized Server Storage" card, aka Dell BOSS-s1. The BOSS is a much simpler version of the HighPoint SSD7103 RAID card. Two M.2 slots and a Marvel RAID controller to create a RAID1 mirror if desired. The purpose of these cards to is to boot the OS using solid state and to free up the spinning platters for virtual machines or other data. Conceptually they are very simple, but not officially supported until the R740 and other 14th generation hardware. Essentially, a SATA RAID controller with two M.2 slots on a PCI card, so nothing too complicated.
Can the Dell Boss-s1 with SATA SSD Drives be used to boot up a Dell R720?