diff --git a/testex/STM32/STM32F3xx/I2C-LSM303DLHC/chconf.h b/testex/STM32/STM32F3xx/I2C-LSM303DLHC/chconf.h
index 184320861..899a292ef 100644
--- a/testex/STM32/STM32F3xx/I2C-LSM303DLHC/chconf.h
+++ b/testex/STM32/STM32F3xx/I2C-LSM303DLHC/chconf.h
@@ -400,7 +400,7 @@
  *
  * @note    The default is @p FALSE.
  */
-#define CH_DBG_SYSTEM_STATE_CHECK           TRUE
+#define CH_DBG_SYSTEM_STATE_CHECK           FALSE
 
 /**
  * @brief   Debug option, parameters checks.
@@ -409,7 +409,7 @@
  *
  * @note    The default is @p FALSE.
  */
-#define CH_DBG_ENABLE_CHECKS                TRUE
+#define CH_DBG_ENABLE_CHECKS                FALSE
 
 /**
  * @brief   Debug option, consistency checks.
@@ -419,7 +419,7 @@
  *
  * @note    The default is @p FALSE.
  */
-#define CH_DBG_ENABLE_ASSERTS               TRUE
+#define CH_DBG_ENABLE_ASSERTS               FALSE
 
 /**
  * @brief   Debug option, trace buffer.
@@ -427,7 +427,7 @@
  *
  * @note    The default is @p CH_DBG_TRACE_MASK_DISABLED.
  */
-#define CH_DBG_TRACE_MASK                   CH_DBG_TRACE_MASK_ALL
+#define CH_DBG_TRACE_MASK                   CH_DBG_TRACE_MASK_DISABLED
 
 /**
  * @brief   Trace buffer entries.
@@ -446,7 +446,7 @@
  * @note    The default failure mode is to halt the system with the global
  *          @p panic_msg variable set to @p NULL.
  */
-#define CH_DBG_ENABLE_STACK_CHECK           TRUE
+#define CH_DBG_ENABLE_STACK_CHECK           FALSE
 
 /**
  * @brief   Debug option, stacks initialization.
@@ -456,7 +456,7 @@
  *
  * @note    The default is @p FALSE.
  */
-#define CH_DBG_FILL_THREADS                 TRUE
+#define CH_DBG_FILL_THREADS                 FALSE
 
 /**
  * @brief   Debug option, threads profiling.