diff --git a/Marlin/src/pins/stm32f4/pins_LERDGE_X.h b/Marlin/src/pins/stm32f4/pins_LERDGE_X.h
index 974392373f..3a9c286e00 100644
--- a/Marlin/src/pins/stm32f4/pins_LERDGE_X.h
+++ b/Marlin/src/pins/stm32f4/pins_LERDGE_X.h
@@ -32,6 +32,9 @@
 #define TEMP_TIMER                             2
 
 #define I2C_EEPROM
+#define I2C_SCL_PIN                         PB8
+#define I2C_SDA_PIN                         PB9
+#define MARLIN_EEPROM_SIZE               0x10000  // FM24CL64 F-RAM 64K (8Kx8)
 
 // USB Flash Drive support
 #define HAS_OTG_USB_HOST_SUPPORT