Originally Posted by FOL
It could be, had lots of boards where they dont boot CF HDD. Put CF on another board it will work, add a ram expansion to the none booting board, it then works.
If apply timing fixes, generally solved that problem, but not all the time as the A1200 board is evil when it comes to timing issues.
As expert, maybe you can give the points to check with the oscilloscope
as it seems that many users have timing fix problems...