The concerned notebook with Sis672 Chipset obviously has got a BIOS lock accepting other hardware.
In my case I´d like to use a different WiFi-Adapter. The present one is Realtek RT8178B, I´d like to use a faster 802.11n-card, tried 3 different versions, none works. Slot is MiniPCIe.
There is no support except that this device accepts only this card. Other notebooks with the same chipset have 802.11n-cards on board, so it must be assumed, that the BIOS locks other hardware.
Unfortunaly I can´t post a link yet to the BIOS, but surely this can be done via PM?