Would anyone have a copy of this?

I've been working on an Olivetti M280 and have it up and running but without the disk I cannot access the bios to setup the HDD etc.

On my other olivetti systems (granted they are newer systems) clearing the CMOS or changing the hardware (pull out the floppy cable for example) would drop you into the bios or pressing ctrl shift alt del would too but on this neither works.

I'm a bit stuck without it and Google doesn't turn up much. Archive.org has everything for this system other than the software so any help would be appreciated.