820-2915 pp3v3_S0GPU low no video after Gpu replaced

[Salvatore951]

820-2915 after Gpu replacement I got no video, It chime and loads os since backlight turn on. pp3v3_s0GPU is low 0.6v

pp3v3gpu_SS 3.3v
pp3v3_s5 3v3v
pp3v3_s0 3.3v
pp3v3_S0GPU 0.6v (diode mode 0.500v)

already replaced q7870, u9270, q7812, q7810, q7872

 

[larossmann]

Bad GPU, no surprise there. These aren't available in new/good order.