I have had a good play with attempting to disable fast boot or any way of getting into the BIOS and NOTHING has worked.
down the PWR button from the off state, the machine beeps at me 4 times then I restart and the machine I get the monotonous
I also tried changing the BIOS CFG jumper on the MB - I changed the jumper from pins 1 & 2 to 2 & 3. This did nothing.
The machine otherwise boots normally and operates fine.
I am still open to suggestion. This is a strange problem.
I also flicked out the Li button cell before AND changed the jumper but once again, to no effect.