changes

diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index a935bde..3ca167c 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -8,13 +8,13 @@
 // Huxley: http://reprap.org/wiki/RepRapPro_Huxley_maintenance
 
 // Uncomment ONE of the next three lines - the one for your RepRap machine
-//#define REPRAPPRO_HUXLEY
-#define REPRAPPRO_MENDEL
+#define REPRAPPRO_HUXLEY
+//#define REPRAPPRO_MENDEL
 //#define REPRAPPRO_WALLACE
 
 // Uncomment ONE of the next two lines - the one for your master controller electronics
-#define REPRAPPRO_MELZI
-//#define REPRAPPRO_SANGUINOLOLU
+//#define REPRAPPRO_MELZI
+#define REPRAPPRO_SANGUINOLOLU
 
 // Uncomment ONE of the next two lines - the one for the series resistors on your controller
 #define SERIAL_R 4700
diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index 561b13b..139326a 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -23,7 +23,7 @@
 //This is for controlling a fan to cool down the stepper drivers
 //it will turn on when any driver is enabled
 //and turn off after the set amount of seconds from last driver being disabled again
-//#define CONTROLLERFAN_PIN 23 //Pin used for the fan to cool controller, comment out to disable this function
+#define CONTROLLERFAN_PIN 23 //Pin used for the fan to cool controller, comment out to disable this function
 #define CONTROLLERFAN_SEC 60 //How many seconds, after all motors were disabled, the fan should run
 
 //===========================================================================