A while ago I picked up a 10 MHz Turbo XT compatible board. Normally I'd play with this a little and then put it in the box with my other motherboards, I figured I'd try to do something with this one. I had to actually Make Stuff to get this working, so I'm a little proud of this.
As you can see this doesn't currently have a case (does anyone have a spare slimline desktop AT case btw?). What it does have :
- Turbo XT board, with an 8088 at a whopping 10 MHz, with 640kb RAM
- PS2 keyboard connected via PS/2 -> AT adapter and then an XT2AT converter :
- EGA graphics, hooked up to my TV via an EGA->SCART cable. This uses a bit of logic to convert the CGA/EGA positive separate syncs into negative composite sync, and also to handle the IBM magic around colour 6 (which on RGBI should be dark yellow but is actually brown). I probably need to remake some of this, as the SCART plug is stuffed a bit full. 9V battery could probably be replaced by 5V from something else, maybe the parallel port.
- MFM hard disk controller with a 20MB Kalok drive. I think this drive may have originally come from an Arc. A few bad sectors but it mostly seems to work! It is completely full however - 20MB doesn't get you very far even on an XT.
- Sound Blaster 2
- Generic 1.44 MB floppy drive on a 16-bit multi-I/O card
Other things I'd like to do with this :
- Get a case!
- Track down a 360kb floppy drive
- Get a second MFM hard drive - if I can find one!
- Maybe an 8087, though I'm not sure what I'd do with it