Does the Clevo X7200 have a GPU whitelist for the MXM master slot?

[SuperMG]

Hello.

 

I've been intrigued a lot about why anything above GTX 680M Kepler won't work on this LVDS X7200 laptop?

 

For example Quadro K3100M, GTX 780M, 880M, 970M, 980M won't work in the master slot, despite having the same LVDS port for the internal screen. 

 

These cards do support legacy and legacy oprom.

 

Even I got a GTX 970M, 980M and Quadro P5200 to work in the slave slot! With Legacy and UEFI VBIOSes. The BIOS recognized them as the 2nd NVIDIA GPU. Even the RTX 4070 MXM was detected!!

 

So my point is... There's maybe a whitelist of GPUIDs for the master slot.

 

But some could say that the GTX 700M to 900M needs some partial support for UEFI in order to work and display... Even though these generations support both legacy and UEFI.

 

It's not about the LVDS port. It's about the BIOS.

 

Is there a way to remove the GPU whitelist from that Phoenix BIOS? So we can add a GTX 980M as the best card in terms of LVDS compatibility?

 

I see that the Alienware M17X R3 and M18X R1 could support up to an GTX 780M and GTX 880M for the master slot. Even the 1st gen core i M15X can support up to a GTX 980M...

 

Any bios modders? Prema? Svl7? Baked?