This is wrong, but just plausible sounding enough that some readers will believe it. The other replies also seem to be nothing but further ChatGPT generated spa

This is wrong, but just plausible sounding enough that some readers will believe it. The other replies also seem to be nothing but further ChatGPT generated spam from same poster. --- The V86 mode it's trying to describe here was/is a processor feature introduced by Intel in the 80386. It is not something specific to IBM ThinkPads or normally requires any BIOS component, and was first supported by Compaq's memory manager and Windows/386: https://en.wikipedia.org/wiki/CEMM https://en.wikipedia.org/wiki/CEMM https://en.wikipedia.org/wiki/Windows/386 https://en.wikipedia.org/wiki/Windows/386 It is reasonable to guess that "IBMV86" also makes use of this feature, though I don't know exactly for what purpose; and as a human, I am perfectly willing to say so instead of making up bullshit.