LENOVO B490 JUNK DISPLAY SOLUTION

Lenovo B490 junk Screen Solution

    

1.     Dimm slot Connection Internal Short
2.     Dimm enabling v and Check at pin no 45 get Short   
3.     1.05 Vtt_on Voltage get to too low 
4.     Processor Miss Matched And Chip Set enable Signal getting low voltage
5.     Chip Set Section Smd components Problem