dafa_123 Posted February 21 Share Posted February 21 Hello, I have an old PCChips M507 that I am unable to upgrade the BIOS. I have tried several BIOS tools and they all come back saying that the BIOS chip in Unknown. I have an EEPROM Programmer but I do not know the type of EEPROM to select. Here is a picture of the board's BIOS chip. Any help will be appreciated. Quote Link to comment https://forums.atariage.com/topic/361836-pcchips-m507-bios-upgrade/ Share on other sites More sharing options...
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