Still bad CPU on 820-00840 ?

Hello,

For this board, I saw 8.5 OHM on PP1V_S5G.
On a functional card I measure 1.09k OHM

I think CPU dead, I injected 1V on PP1V_S5G (I don't know if this is the right thing to do) and the CPU barely heats up.

Confirm if you have another idea or if the board is for the trash?

Thanks in advance for yours reply :)
 

2informaticos

Administrator
Staff member
Is PP1V_S5G the only power rail where you've found lower resistance than normal?
Check all coils around CPU and U7800 and compare with good board.
Also check all output rails from page 64.
 
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