Index: /trunk/src/VBox/Devices/PC/DevACPI.cpp
===================================================================
--- /trunk/src/VBox/Devices/PC/DevACPI.cpp	(revision 71810)
+++ /trunk/src/VBox/Devices/PC/DevACPI.cpp	(revision 71811)
@@ -2546,4 +2546,6 @@
     if (RT_SUCCESS(rc))
     {
+        AssertLogRelMsgReturn(pThis->u8SMBusBlkIdx < RT_ELEMENTS(au8SMBusBlkDat),
+                              ("%#x\n", pThis->u8SMBusBlkIdx), VERR_SSM_LOAD_CONFIG_MISMATCH);
         rc = acpiR3RegisterPmHandlers(pThis);
         if (RT_FAILURE(rc))