All voltages are okay, even a thunderbolt boost is reacting on power request by cortex. Spi rom is read by pch, All_system_is_okay (mean the signal 3.3v by smc is present). But CPU won't request voltage from Max buck converter to power up VCore voltages to start the CPU. CPU and pch is getting warm. So there is no SVID and SVCLK data exchange. A lot of info on the web declare the TON signal failure on 2 pin of Max controller, and it has 90.2K, the voltage drop on power on, down to 0.35v. whrlen the system is off, then voltage on pin 2 is 8.4 volts.
Btw forgot to say, all voltages are in place, so without reading SVID or SVCLK, system looks like halted, fans are spinning, USB are powered. Tried to use another rom dump, but no difference.
Any ideas? Because of missing MAXIM controller datasheet, I can't get idea of principal of how it's working
Btw forgot to say, all voltages are in place, so without reading SVID or SVCLK, system looks like halted, fans are spinning, USB are powered. Tried to use another rom dump, but no difference.
Any ideas? Because of missing MAXIM controller datasheet, I can't get idea of principal of how it's working
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