diff --git a/src/mainboard/protectli/vault_kbl/Kconfig b/src/mainboard/protectli/vault_kbl/Kconfig
index 10f8c400b7..e905be9bdc 100644
--- a/src/mainboard/protectli/vault_kbl/Kconfig
+++ b/src/mainboard/protectli/vault_kbl/Kconfig
@@ -47,4 +47,12 @@ config CBFS_SIZE
 config USE_PM_ACPI_TIMER
 	default n
 
+config BEEP_ON_BOOT
+	bool "Beep on successful boot"
+	default y
+	help
+	  Make the platform beep using the PC speaker in final coreboot phase.
+	  May serve as a useful indicator in headless mode that platform is
+	  properly booting.
+
 endif
diff --git a/src/mainboard/protectli/vault_kbl/mainboard.c b/src/mainboard/protectli/vault_kbl/mainboard.c
new file mode 100644
index 0000000000..f99c716c80
--- /dev/null
+++ b/src/mainboard/protectli/vault_kbl/mainboard.c
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <device/device.h>
+#include <pc80/i8254.h>
+
+static void mainboard_final(void *unused)
+{
+	if (CONFIG(BEEP_ON_BOOT))
+		beep(1500, 100);
+}
+
+struct chip_operations mainboard_ops = {
+	.final = mainboard_final,
+};