820-00165 not video

[andrespi]

computer turns on, no video, no usb activity, not external video.these measurements

PPVIN_S0SW_LCDBKLTFET=8.6
LCDBKLT_EN_DIV_L=8.3v
EDP_BKLT_EN=0v
PPVIN_S0SW_LCDBKLT_FET=0v
BKLT_PLT_RST_L=0v

 

[2informaticos]

Why wasting time checking backlight circuit, if don't get image, nor USB activity?

PLT_RESET_L comes on?
Any history fault?
Did you try known good BIOS?

 

[andrespi]

PLT_RESET_L=0V
PM_PCH_SYS_PWROK=3.3V
Any history fault? A LITTLE HUMIDITY BOARD, CHANGE U1930,R1931
Did you try known good BIOS? YES

 

[2informaticos]

Check CPU_VCCST_PWRGD and CPU_VR_READY.

 

[andrespi]

CPU_VCCST_PWRGD=1.01
CPU_VR_READY=1.05

 

[2informaticos]

Seems to have PCH issue; heat its area with quality flux.

 

[andrespi]

Excuse me, I have not programmed bios for this board, is it possible to work by programming bios?

 

[2informaticos]

"Did you try known good BIOS? YES"
Then, what this means???

 

[andrespi]

no, it was a mistake I was thinking of another board

 

[2informaticos]

Then try full known good BIOS.
We already have posted some files on the forum...