Hello, I have this ThinkPad P1 Gen 4 that has what I perceive corrupted bios. Computer charges and upon pressing the power button, the keyboard lights up briefly, both fans begin to spin and the cpu gets warm. However, I get no post. I do get color palette cycling all sorts of colors on the screen when I press Fn-Cntrl-Power key combo at the same time (standard Lenovo screen test). So, this tells me the issue is with bios. All voltages are present including CPU, GPU and memory voltages.
The bios file is a little tricky. I believe it has 2 identical 256Mb chips next to each other (photo...
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