I flashed the BIOS (Rev.2.1) of a Data Expert motherboard "EXP8449" (486) with the flash utility for "EXP8551" (586).
Got message : "Flash EPROM Programming error. System will NOT be usable unless existing Flash EPROM is replaced with new Programmed Flash EPROM. Put off system power"
After power off/power on : no lights or screen activity at all, no HD startup.
Then I cleared the CMOS : put connector J1 at 1-2 (2-3 = Normal) and powered on.
Nothing happens (guess this is normal?).
Only when I leave connector J1 all OPEN (1-2-3-4 OPEN), then I get a bootable system.
But I have to run setup again after every power off/power on. I can't manage to permanently save the setup even if I do a "save setting and exit" at the end of the setup process.
Putting connector J1 back to "Normal" (2-3) results in the same situation where the system doesn't do anything at all.
What to do ?