Well, Can't explain it but it all works perfectly now. I wonder if I failed to restart after a firmware update as the M581 and M590 seemed to have some different behavior.
Now for another question;
M81 S1 ; waits until fans stop before shutting off 24VDC PSU
If I put the following commands in sequence will the 2nd command wait until M81 is complete before shutting off the 5VDC power
M81 S1 ; Shut off 24VDC supply once cooling fans stop (everything has cooled off)
M42 P1 S1 ; Shut off 5VDC supply
if not, what command do I need to put between them to get this type of behavior?