MSI · Motherboard
B450M MORTAR MAX
B450M MORTAR MAX
DELTap
BIOS setupPress during boot when the setup and boot-menu prompt appears.
F11Tap
Boot menuPress during boot when the setup and boot-menu prompt appears.
Manufacturer verified · checked
MSI User Guide E7B89v1.1 is scoped only to the B450M MORTAR MAX motherboard and explicitly documents both startup shortcuts.