Thank you for your help.
Acording to this article -
Eb has two descriptions: 1) Calling Legacy Option ROMs and 2) Calling Video BIOS.
A0 is Reserved for future use (new input console codes). I guess, the future has arrived.
BIOSversion wasthe latest100.IflashedBIOSwith the same versionandnothing has changed.
Actually computerstillworks well and graphic card do its job despite the Calling Legacy Option ROM Video BIOS and permanentA0code.
But I'm very eager to read more details about those codes. Would you like to give me more information?