Index: /trunk/src/VBox/Devices/Audio/DevIchAc97.cpp
===================================================================
--- /trunk/src/VBox/Devices/Audio/DevIchAc97.cpp	(revision 61528)
+++ /trunk/src/VBox/Devices/Audio/DevIchAc97.cpp	(revision 61529)
@@ -2699,6 +2699,8 @@
                 }
                 else
-                    AssertReleaseMsgFailed(("Unable to retrieve audio backend configuration for LUN #%RU8, rc=%Rrc\n",
-                                            pDrv->uLUN, rc2));
+                {
+                    LogRel(("AC97: Unable to retrieve audio backend configuration for LUN #%RU8, rc=%Rrc\n", pDrv->uLUN, rc2));
+                    fWarn = true;
+                }
 
                 if (fWarn)
Index: /trunk/src/VBox/Devices/Audio/DevIchHda.cpp
===================================================================
--- /trunk/src/VBox/Devices/Audio/DevIchHda.cpp	(revision 61528)
+++ /trunk/src/VBox/Devices/Audio/DevIchHda.cpp	(revision 61529)
@@ -6011,6 +6011,8 @@
                 }
                 else
-                    AssertReleaseMsgFailed(("Unable to retrieve audio backend configuration for LUN #%RU8, rc=%Rrc\n",
-                                            pDrv->uLUN, rc2));
+                {
+                    LogRel(("HDA: Unable to retrieve audio backend configuration for LUN #%RU8, rc=%Rrc\n", pDrv->uLUN, rc2));
+                    fWarn = true;
+                }
 
                 if (fWarn)