Ok, I poached this from another A3000T thread going on at Amibay, this looks like the default jumpers but I can't guarantee the source -:
The jumpers back to factory for the CPU, for the onboard 030:
J100 1-2
J102 2-3
J103 3-4
J104 1-2
J105 ALL OPEN
J106 ALL OPEN
J107 ALL OPEN