Nortel 1000 Hardware Installation Manual page 48

Appendix A Upgrading Memory
Verifying a Successful Memory Upgrade
6
7
40
Application Gateway Administration Guide
Exit, saving the changes.
d.
Do not change any other settings. The Application Gateway reboots
and performs a more detailed memory test at boot time.
If "512MB OK" appears on the screen, the memory upgrade has been
successful. If not, the memory upgrade has failed.
Power off the Application Gateway by depressing the Power button for
seven seconds.
Disconnect the power cable.