diff --git a/dracclient/client.py b/dracclient/client.py
index b3b6bf8..340a625 100644
--- a/dracclient/client.py
+++ b/dracclient/client.py
@@ -956,14 +956,23 @@ class DRACClient(object):
         """
         return self._raid_mgmt.is_raid_controller(raid_controller_fqdd)
 
-    def is_boss_controller(self, raid_controller_fqdd):
+    def is_boss_controller(self, raid_controller_fqdd, raid_controllers=None):
         """Find out if a RAID controller a BOSS card or not
 
         :param raid_controller_fqdd: The object's fqdd we are testing to see
                                      if it is a BOSS card or not.
+        :param raid_controllers: A list of RAIDController to scan for presence
+                                 of BOSS card, if None the drac will be queried
+                                 for the list of controllers which will then be
+                                 scanned.
         :returns: boolean, True if the device is a BOSS card, False if not.
+        :raises: WSManRequestFailure on request failures
+        :raises: WSManInvalidResponse when receiving invalid response
+        :raises: DRACOperationFailed on error reported back by the DRAC
+                 interface
         """
-        return self._raid_mgmt.is_boss_controller(raid_controller_fqdd)
+        return self._raid_mgmt.is_boss_controller(raid_controller_fqdd,
+                                                  raid_controllers)
 
     def change_physical_disk_state(self, mode,
                                    controllers_to_physical_disk_ids=None):
diff --git a/dracclient/resources/raid.py b/dracclient/resources/raid.py
index b991c60..2ddf494 100644
--- a/dracclient/resources/raid.py
+++ b/dracclient/resources/raid.py
@@ -504,14 +504,26 @@ class RAIDManagement(object):
         """
         return raid_controller_fqdd.startswith('RAID.')
 
-    def is_boss_controller(self, raid_controller_fqdd):
+    def is_boss_controller(self, raid_controller_fqdd, raid_controllers=None):
         """Find out if a RAID controller a BOSS card or not
 
         :param raid_controller_fqdd: The object's fqdd we are testing to see
                                      if it is a BOSS card or not.
+        :param raid_controllers: A list of RAIDController to scan for presence
+                                 of BOSS card, if None the drac will be queried
+                                 for the list of controllers which will then be
+                                 scanned.
         :returns: boolean, True if the device is a BOSS card, False if not.
+        :raises: WSManRequestFailure on request failures
+        :raises: WSManInvalidResponse when receiving invalid response
+        :raises: DRACOperationFailed on error reported back by the DRAC
+                 interface
         """
-        return raid_controller_fqdd.startswith('AHCI.')
+        if raid_controllers is None:
+            raid_controllers = self.list_raid_controllers()
+        boss_raid_controllers = [
+            c.id for c in raid_controllers if c.model.startswith('BOSS')]
+        return raid_controller_fqdd in boss_raid_controllers
 
     def _check_disks_status(self, mode, physical_disks,
                             controllers_to_physical_disk_ids):
diff --git a/dracclient/tests/test_raid.py b/dracclient/tests/test_raid.py
index 0e38475..6d56516 100644
--- a/dracclient/tests/test_raid.py
+++ b/dracclient/tests/test_raid.py
@@ -772,11 +772,41 @@ class ClientRAIDManagementTestCase(base.BaseTest):
         self.assertFalse(self.drac_client
                          .is_raid_controller("notRAID.Integrated.1-1"))
 
-    def test_is_boss_controller(self, mock_requests):
+    @mock.patch.object(dracclient.client.WSManClient,
+                       'wait_until_idrac_is_ready', spec_set=True,
+                       autospec=True)
+    def test_is_boss_controller(self, mock_requests,
+                                mock_wait_until_idrac_is_ready):
+        mock_requests.post(
+            'https://1.2.3.4:443/wsman',
+            text=test_utils.RAIDEnumerations[uris.DCIM_ControllerView]['ok'])
         self.assertTrue(self.drac_client
                         .is_boss_controller("AHCI.Integrated.1-1"))
+
+    @mock.patch.object(dracclient.client.WSManClient,
+                       'wait_until_idrac_is_ready', spec_set=True,
+                       autospec=True)
+    def test_is_not_boss_controller(self, mock_requests,
+                                    mock_wait_until_idrac_is_ready):
+        mock_requests.post(
+            'https://1.2.3.4:443/wsman',
+            text=test_utils.RAIDEnumerations[uris.DCIM_ControllerView]['ok'])
         self.assertFalse(self.drac_client
-                         .is_boss_controller("notAHCI.Integrated.1-1"))
+                         .is_boss_controller("notAHCI.Integrated.1-1"),
+                         None)
+
+    @mock.patch.object(dracclient.client.WSManClient,
+                       'wait_until_idrac_is_ready', spec_set=True,
+                       autospec=True)
+    def test_is_boss_controller_with_cntl_list(self, mock_requests,
+                                               mock_wait_until_idrac_is_ready):
+        mock_requests.post(
+            'https://1.2.3.4:443/wsman',
+            text=test_utils.RAIDEnumerations[uris.DCIM_ControllerView]['ok'])
+        controllers = self.drac_client.list_raid_controllers()
+        self.assertTrue(self.drac_client
+                        .is_boss_controller("AHCI.Integrated.1-1",
+                                            controllers))
 
     def test_check_disks_status_no_controllers(self, mock_requests):
         physical_disks = [self.disk_1, self.disk_2, self.disk_3, self.disk_4]