Data General NOVA 4/C Field Engineering Maintenance Manual page 118

Data General Corporation (DGC) has prepared this manual for use by DGC personnel and customers as a guide to the proper installation, operation, and
maintenance of DGC equipment and software. The drawings and specifications contained herein are the property of DGC and shall neither be reproduced in whole or
in part without DGC's prior written approval nor be implied to grant any license to make, use, or sell equipment manufactured in accordance herewith.
3. When a tone sounds, press the F key on the system
console. In a few seconds, the tone stops and the console
prints the top memory address to be used by the diagnostic
programs. For a 64K Byte system, this top memory address
is 77777; for a 32K Byte system it is 37777..
lf the tone does not stop before 9 feet of tape have been
read, the Cassette Executive program probably did not
load. In this case, repeat steps 1 through 3.
If the program fails to load after several attempts, use the
cassette bootstrap. You might also check tosee if the cassette
bootstrap was loaded correctly. Note the automatic cassette
load program loads the cassette bootstrap into memory
Starting at location 2.
Cassette Bootstrap
1. Using the virtual console, enter the following data in
the locations indicated.
Location Input
1000 152440
1001 176440
1002 24402
1004 177526
1006 775
1011 771
1015 764
2. Rewind the tape to the beginning.
sounds, enter the following on the console:
address is 77777, ; for a 32 KByte system it is 37777.. If the
tone does not stop before 9 feet of tape have been read, the
Cassette Executive program probably did not load. In this
case, repeat steps 1 through 4.