I Do Not Remember What Was The Default, And With The New BIOS(es) I Do Not Even Know, But It Was Possible To Halt The Computer On Several Hardware Errors And With These 2 Options, At Least:
A - No Errors Allowed,
B - Skip Keyboard Errors And Continue...
I Have Lots Of Old Motherboards Somewhere, But Mounting Them Is A Pain, Because I Do Not Have A Proper Laboratory For These Kinds Of Experiments ( I Would Need An Extra Room For That, Among Many Many Many Other Sweet Things ).
Cheers.