Размер версии FD - 2Mb (FC - 1Mb), поэтому пришлось обновлять через утилиту @bios из под Windows. СПАСИБО !!!
I followed your suggestions: WBFlash returned "bios is current no update needed" and Afuwin opened but crashed if I pressed any key. Also tried to boot from USB using Rufus, Afudos and ROM but it returned Write Protected. Any suggestions gratefully received.
Yep flashing with only one ram Stick installed fixed the issue, thank you very much. Everything seems to be running fine now.