Gabriele72
Experienced Member
I've picked up an Olivetti M24 recently (model XP1050) which seems to be working but I can't get it to boot from HD.
It has no bus adaptor board inside but a single addon card (plugged where the bus adaptor/extender was supposed to be), a Western Digital MFM controller which drives a classic Seagate ST-225 HD.
MB dip switches are set to bypass the controller ROM and use the M24 ROM.
The controller is a WD1002A-WX1 with no BIOS EPROM installed and W3 Jumper open ( = No BIOS ROM ).
Suspecting a HD failure I have low level formatted it in a 386 machine with a NCL MFM controller, FDISK'ed and installed Olivetti MS-DOS 3.30.
It now boots fine in the 386 but once moved back to the M24, POST utters:
[...]
Fixed Disk Ready
[...]
ROM BASIC not available
I think jumpers to set HDD type have no effect if the controller ROM is bypassed, so what could possibly be wrong?
It has no bus adaptor board inside but a single addon card (plugged where the bus adaptor/extender was supposed to be), a Western Digital MFM controller which drives a classic Seagate ST-225 HD.
MB dip switches are set to bypass the controller ROM and use the M24 ROM.
The controller is a WD1002A-WX1 with no BIOS EPROM installed and W3 Jumper open ( = No BIOS ROM ).
Suspecting a HD failure I have low level formatted it in a 386 machine with a NCL MFM controller, FDISK'ed and installed Olivetti MS-DOS 3.30.
It now boots fine in the 386 but once moved back to the M24, POST utters:
[...]
Fixed Disk Ready
[...]
ROM BASIC not available
I think jumpers to set HDD type have no effect if the controller ROM is bypassed, so what could possibly be wrong?