HELP ME Marlin 1.1.0-RC6 UPGRADE HEATBED 300X300

Need Help about Marlin upgrade Alu Heat-bed 300x300 12/24V.

What must be replace in Marlin Configuration.h except

// Travel limits after homing (units are in mm)
#define X_MIN_POS 0
#define Y_MIN_POS 0
#define Z_MIN_POS 0
#define X_MAX_POS 300
#define Y_MAX_POS 300
#define Z_MAX_POS 500

Make sure the correct thermistor is selected for the bed heater.

Extruders MK8 dual with Fans:

// This defines the number of extruders
// :[1,2,3,4]
#define EXTRUDERS 2


Motherboard:
#ifndef MOTHERBOARD
#define MOTHERBOARD BOARD_RAMPS_14_EEB
#endif

Thermistor:
// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
#define TEMP_SENSOR_0 11
#define TEMP_SENSOR_1 11
#define TEMP_SENSOR_2 0
#define TEMP_SENSOR_3 0
#define TEMP_SENSOR_BED 11