Commodore PC10-III

I acquired this computer in an interchange marked, where I changed a juice-machine for this pretty good computer.

It came with all options: Green Hercules monitor, and a mechanic IBM keyboard.

Hardware

Computer
XT or XT/370
CPU
Physical: SIEMENS SAB8088-1-P / Reported: 8086-4.77
Coprocessor
None
BUS
ISA8
Memory
640Kb
Video
Hercules Graphics, integrated in mainboard. Also supports Color Monitor and TV output (Composed Video, black and white).
Disk Controller
Integrated in mainboard.
Floppy Drives
Hard Disk
Western Digital model WD93028-X, 21Mb, 28/12/89
Port Controller
Offers a Serial (8250), a Parallel and a Game Port, integrated in mainboard. It also reports MOUSE port (023Ch) at boot process.
Serial Ports
Address UART Speed Format IRQ
COM1 03F8 8250 2400 8N1 4
Parallel Ports
Address IRQ
LPT1 0378
Keyboard
84 Keys Support, DIN Connector.
Power Supply
Manufacturer: PHIHONG ; Model: DPS-145BB ; 230V, 50Hz, 100W ; Out: 75W
Voltage Current
INPUT 240V AC 50Hz 0.8A
INPUT 120V AC 60Hz 1.6A
OUTPUT +5V DC 5.8A
OUTPUT +12V DC 3.5A
OUTPUT -12V DC 0.3A
CMOS Battery
VARTA, soldered.

Mainboard configuration

There are many jumpers in the mainboard, but I don't know at all what do they set up. If anyone knows, please write me.

Software

BIOS
Commodore PC BIOS Rev. 4.35 / 318 085 - 01
Operating System
MS-DOS 3.20 (Spanish)
Drives

This computer has some specific software (look for speed.exe in details). I'll soon put it here for download (I actually don't have any other acces to my box than through serial line)

Files

These files can give more detailed information about the computer and its configuration, and also some benchmarking.

Details

It doesn't have CMOS.

It has only one IRQ controller (IRQs from 0 to 7).

It reports the RTC port (02C0h) at the boot process.

The system runs at 2.2MHz (benchmarked) by default. This is the normal system speed. Anyway, you can change this system speed using this program: speed.exe (see Files). It lets you choose between these modes:

-s
2.2MHz
-t
3.3MHz
-d
4.4MHz

A copy of the MS-DOS 3.20 can be found in the Old Software page.

I've used a 1200 baud internal modem with this computer, and it worked perfectly.

At the time of doing the tests and getting information about the computer (i.e. Snooper's log), it hadn't the B: floppy drive. I had used it in some other computers, in order to get access to 5 1/4" 360Kb floppy disks. This was the first 5 1/4" FD I had.

Started 04/08/2001 / Updated Mon Aug 6 12:17:43 2001

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Viric's Web Site / Webmaster: viric / Started 03/08/2001 / Updated Fri Aug 24 19:51:49 CEST 2001