820-00840-A - PPVCCCPU_S0G

[null]

Here is the issue:
I have all the rails...
After 5 sec the PPVCCCPU_S0G 0.947 drop to zero.
The CPU gets hot, but no USB or VIDEO activity.
I already re-program the bios, replace from a good board and nothing work.

Any hint at this point?

 

[2informaticos]

Should be CPU issue.
Its VCORE seems to drop just when starts to work; it should drop to 0.7V aprox instead.

Any history available?