Installing Linuxcnc on new pc Using Debian 12.13 and Linuxcnc 2.9.8 mesa 7i76eu

OK if you have +24V on TB1 pin 5 relative to TB1 pin 8
and no red LED above TB1 when LinuxCNC is not running,
The 7I76EUs field I/O section has failed or been damaged.

Thank you for all of your help Peter, I have finished all of my testing now the conclusion is clear.

I have got my repaired 7i76eu board returned from Mesa, Thanks again Peter. I have all the limits and estops showing now on Hal show and they are working correctly. I try to home all or jog and the machine just vibrates and shacks until I hit the estop. I have checked everything I can think of. Except for the inputs for limits and estops etc that weren't working before I could get the machine to move, now I can't???? Everything was hooked up as it was before I don't think anything has changed.

There was a problem with the limits and the estop on the input pins. I got that all figured out and now the machine is working and homing. I just now have to get it all tuned up. Thanks again for all your help.