Error,

As previously stated the new pc was replaced with the old pc. Only the backup hard drive is in it. The orginal hard drive was to hot to hold.

wiki.linuxcnc.org/cgi-bin/wiki.pl?PPMC_Board_Set

mpm@enshu:~$ sudo ./ppmcdiags 378 bus
diags ppmc test program V4.2 5/5/2013
io addr = 378
parport addr 0x378
Bus Map
Board Addr Type Ver.
0 DAC-16 1
1 No Board ff
2 No Board ff
3 No Board ff
4 Encoder 2
5 No Board ff
6 DIO 2
7 No Board ff
8 DIO 3
9 No Board ff
a DIO 3
b No Board ff
c DIO 3
d No Board ff
e No Board ff
f No Board ff
mpm@enshu:~$

PPMC is not a parallel port card, as it is described as a digital to analog device.
If using paraport, change everything relating to ppmc to paraport.0.
That shout do it.

PPMC is a pico motion controller and and there are only 16 pins listed in the post above. Pin 0 is DAC.
Paraport has 17 pins and no DAC.
Are you actualy using a PPMC from pico systems?

tommylight wrote: PPMC is a pico motion controller and and there are only 16 pins listed in the post above. Pin 0 is DAC.
Paraport has 17 pins and no DAC.
Are you actualy using a PPMC from pico systems?

I'm pretty sure.

Just read the complete thread, and one of the errors mentions that existing parallel port does not support mode 4, so that just proves that you do not have a PPMC and the parallel port will not work as one. Do you have a PCI card on the old computer? If so, you will have to use that card and change the I/O address.
Ok just saw your post. So you do have one.
Now that is the external card. Is there a internal card on the old computer?