Discussion in 'Processors and motherboards Intel' started by Arctucas, Oct 20, 2021.
During POST, reaches D5, starts over, never enters UEFI.
Yes, CPU died.
D5 = Bootblock code is copied from ROM to lower system memory and control is given to it. BIOS now executes out of RAM.
memory or memory controller is dead
Must have been memory controller. New CPU and all is well once again.