Hello everyone!
This is my work in progress latest build. Using a "Weird? rare?" motherboard made by OCTEK (PN 890102. XT-286 Rev 1.1)
It's a 286 10mhz, but with only 8bit isa, and very close to the known XT JUKO clone motherboard. No fake marketing like IBM XT-286 16bit
No 80287 socket. 1016kb RAM (BIOS are stealing 8kb). 8 Dip Switch, like an XT standard.
At 10mhz it's kill my JUKO Clone at 15mhz...
Inside my full tower:
1.2mb and 1.44mb Floppy
4GB Scsi HD
Plextor SCSI CD
Multi ide-floppy-serial controller 16bit.
VGA Cirrus Logic 5402 (Acumos AVGA2) 16 bit.
Disk On Chip (8MB with DOS and SCSI drivers) & RTC (smbaker) 8bit.
Fan Slot blower
Trantor 130b SCSI w/bios 8bit (Can boot directly from any SCSI devices, like Bernoulli, Jaz, ZIP. (and SCSI HD 2gb max)
MDA graphics (Used for 32kb of DOS high memory) 8 bit.
Smc Network card (Mainly used for XT-IDE bios) 8 bit. XT-IDE Bios still needed for "hook" to Disk On Chip boot
Sound Blaster 16 CT2980. 16 bit.
Good: Can run programs that needs 286 CPU instructions. (Like Monkey Island 2). Still looks like an XT
Bad: 99% XT compatible. HD Floppys with 2M-Xbios doesn't work (And 2m-ABIOS neither...).
Even with 2M-Xbios source code, I need to see how both bios interact...and maybe with help, fix that issue.
Some problems with software using autodetect routines. Some programs shows AT Machine... others XT Machine...
CPU a little hot...will glue a small cooler/fan
WIP VIDEO. Hard Disk already fixed
Now, some pictures. !!!
This is my work in progress latest build. Using a "Weird? rare?" motherboard made by OCTEK (PN 890102. XT-286 Rev 1.1)
It's a 286 10mhz, but with only 8bit isa, and very close to the known XT JUKO clone motherboard. No fake marketing like IBM XT-286 16bit
No 80287 socket. 1016kb RAM (BIOS are stealing 8kb). 8 Dip Switch, like an XT standard.
At 10mhz it's kill my JUKO Clone at 15mhz...
Inside my full tower:
1.2mb and 1.44mb Floppy
4GB Scsi HD
Plextor SCSI CD
Multi ide-floppy-serial controller 16bit.
VGA Cirrus Logic 5402 (Acumos AVGA2) 16 bit.
Disk On Chip (8MB with DOS and SCSI drivers) & RTC (smbaker) 8bit.
Fan Slot blower
Trantor 130b SCSI w/bios 8bit (Can boot directly from any SCSI devices, like Bernoulli, Jaz, ZIP. (and SCSI HD 2gb max)
MDA graphics (Used for 32kb of DOS high memory) 8 bit.
Smc Network card (Mainly used for XT-IDE bios) 8 bit. XT-IDE Bios still needed for "hook" to Disk On Chip boot
Sound Blaster 16 CT2980. 16 bit.
Good: Can run programs that needs 286 CPU instructions. (Like Monkey Island 2). Still looks like an XT
Bad: 99% XT compatible. HD Floppys with 2M-Xbios doesn't work (And 2m-ABIOS neither...).
Even with 2M-Xbios source code, I need to see how both bios interact...and maybe with help, fix that issue.
Some problems with software using autodetect routines. Some programs shows AT Machine... others XT Machine...
CPU a little hot...will glue a small cooler/fan
WIP VIDEO. Hard Disk already fixed
Now, some pictures. !!!