looks like the Intel security protection. take the board out, disable the "secure boot", put the board in, boot up, then enable the "secure boot" again. if does not help, try the battery, or "OS recovery mode" witth he boot-fail counter. The secure boot should be disabled when upgrading anyway.
Greetings folks -I have a Precision 7810 in which I want to add some USB-C ports. I bought a commodity PCIe card and have had no luck getting the machine to boot past the DELL logo. I have done ‘the usual’ - updated BIOS, different slots, different video card, returned card for new card, battery pull. The machine powers up to the DELL logo, but never makes it to the ‘there are two drives here and here, hit ctl-I to go into configure’ screen. It just turns blank and sits there. Can’t F2 or F12 into the BIOS / Boot configure. Remove the card - boots just fine. Any thoughts?
Precision 7810 + PCIe USB = won’t boot past DELL logo