Hello guys,
I just got a new board which has no apple logo on startup. It chimes, video is there, the fan is spinning and VCore is present. But it doesn't boot.
When I measure the power rails, I get only 0.8V on PPVCORE_S0_CPU_REG (instead of 1.25V). I thought there could be an issue with Q7510 and Q7520, so I replaced them but nothing changed. Does someone have a clue?
Thanks a lot!!!
I just got a new board which has no apple logo on startup. It chimes, video is there, the fan is spinning and VCore is present. But it doesn't boot.
When I measure the power rails, I get only 0.8V on PPVCORE_S0_CPU_REG (instead of 1.25V). I thought there could be an issue with Q7510 and Q7520, so I replaced them but nothing changed. Does someone have a clue?
Thanks a lot!!!