I bought the laptop used with an open dSanke bios version. It's supposed to have a gtx bios on it. I don't think you need an open bios, that is, to use the adapter.
This is my first Clevo laptop. Before that, there was an MSI GT70 on which I opened the bios from an exe file under Windows. I got it from someone on another forum.
I'm not an expert on the subject. You have to look for an 870 bios version. It's just that someone has it, and it will apply if you need it. I can also ask my friends about it.
The adapter must be started together with the laptop, then it will come up. Before that, ACPI must be disabled in the device manager. (Photo)
The battery will not function as well, but it is present, because if there is a power cut, the laptop will not turn off. This is how it works, if I say correctly, from the 2000 series upwards. A gtx 970 ran without disabling ACPI. An RTX 2080 no longer came up just by disabling ACPI, you have to start the laptop that way.
For me, the keyboard lighting only works at the beginning, when Windows comes up, it unfortunately does not work if the system is stable. If there is lighting, something is wrong. :-)))))))))))
I have Win11 and everything works stably, for example XTU, MSI AB....everything like on a desktop computer. The ram timing is only known by the bios and the software....this part of the XTU is incomplete. I don't know what else to say. You have to dive in and find the answer to everything in the process.
Many people helped, nothing would have worked alone.