A1706 820-00239-A no power on

[hgoncalves]

Hi,

I have an A1706 820-00239-A , that doesn't power on.

It has fan spin, CPU gets hot, but It has no USB activity.

I have voltage in all big coils, except:

R7410 = 0V
R7420 = 0V
R7430 = 0V

Can you help?

 

[2informaticos]

Any history available?
What is L7210/20 voltage after 10s?

BTW, when you have 2-3 coils connected together, good enough to check one only!

 

[hgoncalves]

Hi,

Client said it stoped working overnigh.

Both L7210/20 stays at steady 1.090V

 

[2informaticos]

Try known good BIOS...

 

[hgoncalves]

I've tried a new clean ME BIOS, but same result, and both L7210/20 stays at steady 1.092V

 

[2informaticos]

Probably bad CPU.

Did you test the board alone on the desk?

 

[hgoncalves]

Hi,

Yes, I've tested it alone on the desk...

TKS.