Uncreative Labs

Joined: 29 Mar 2008 Posts: 51 Location: czech republic

During my neverending and still unsuccessfull search for 5160 I came to a Commodore PC 10. Yes this is a XT class computer not 8 bit Very Happy

It is without power supply and the connector is not a AT but something really strange. I know the way how to find out the pinout of this connector (mesure it against ISA slot) but may be someone knows the pinout? I tried google but either I use wrong phrases or it is not there

Joined: 29 Mar 2008 Posts: 51 Location: czech republic

OK. So I had to figure it myself. BTW: this XT clone seems to have an onboard IDE controller and RTC (apart other interesting things) Unfortunatelly both 360kB drives an HDD seem dead.

So the power supply pinout is:
1.....Power Good
2.....-12V
3.....+12V
4.....GND
5.....GND
6.....+5V

Good news is that motherboard seems to work in general, I connected it to a TV via composite video out and I see nice message Commodore PC BIOS rev 4.36 and post test screen Very Happy

Now I need to figure out how to make an IDE drive work

Joined: 19 Apr 2006 Posts: 261 Location: WisConSin

You will need an old 20mb or 40mb Western Digital drive with the A/X on the end of the serial. The IDE port is NOT 16bit IDE but 8 bit XT-IDE which requires a 8 bit IDE hard drive. There were other 8 bit IDE drives but they may be difficult to locate.

http://www.fotovallescrivia.it/public/news/comp.sys.ibm.pc.classic/116886-Re-commodore-pc-10-III-jumper-settings.htm

Good Luck
Ryan

Joined: 29 Mar 2008 Posts: 51 Location: czech republic

Wow, thanks for hint. This is the reason why the 80MB IDE disk is not working in it. I have few Conner CP2024 2.5" HDDs from old XT laptop Olivetti Quaderno. Those are supportinq 16bit but also old XT bus, so they should work.