diff --git a/misc/config_tools/board_inspector/acpiparser/aml/interpreter.py b/misc/config_tools/board_inspector/acpiparser/aml/interpreter.py
index d1106c626..a3f901ec9 100644
--- a/misc/config_tools/board_inspector/acpiparser/aml/interpreter.py
+++ b/misc/config_tools/board_inspector/acpiparser/aml/interpreter.py
@@ -329,7 +329,11 @@ class ConcreteInterpreter(Interpreter):
             self.context.change_scope(tree.scope)
             device_path = self.context.parent(sym.name)
             bus_id = self.interpret_method_call(f"_BBN").get()
-            device_id = self.interpret_method_call(f"{device_path}._ADR").get()
+            if self.context.has_symbol(f"{device_path}._ADR"):
+                device_id = self.interpret_method_call(f"{device_path}._ADR").get()
+            elif self.context.has_symbol(f"{device_path}._BBN"):
+                # Device objects representing PCI host bridges may not have an _ADR object
+                device_id = 0
             self.context.pop_scope()
             op_region = OperationRegion.open_pci_configuration_space(bus_id, device_id, offset, length)
             pass
diff --git a/misc/config_tools/board_inspector/extractors/50-acpi.py b/misc/config_tools/board_inspector/extractors/50-acpi.py
index df7869239..5c970483c 100644
--- a/misc/config_tools/board_inspector/extractors/50-acpi.py
+++ b/misc/config_tools/board_inspector/extractors/50-acpi.py
@@ -474,7 +474,9 @@ def fetch_device_info(devices_node, interpreter, namepath, args):
             bus_number = result.get()
             if isinstance(bus_number, int):
                 bus_number = hex(bus_number)
-            element.set("address", bus_number)
+            # To avoid confusion to the later extractors, do not recognize _BBN for non-present host bridges.
+            if sta == None or (sta & 0x1) != 0:
+                element.set("address", bus_number)
             add_object_to_device(interpreter, namepath, "_BBN", result)
 
         # Status