System information

6-34
AlphaServer 800 Service Guide
6.7 Console Port Configurations
Power-up information is typically displayed on the system's console terminal. The
console terminal may be either a graphics monitor or a serial terminal. If you use a
serial terminal, it is connected through the COM1 (MMJ) serial port.
Several SRM console environment variables are used to configure the console ports:
Environment Variable Description
console Determines where the system will display power-up
output. Set this environment variable according to the
console terminal that you are using (Section 6.7.1).
tt_allow_login Enables or disables login to the SRM console firmware
on alternative console ports (Section 6.7.2).
In addition, the tga_sync_green environment variable (Section 6.7.3)
is used to synchronize monitors using the high-performance turbo graphics adapter
card (PBXGA).
A serial terminal can also be configured to run the ECU or interface with the
AlphaBIOS console (Section 6.7.4).
When using a VGA controller other than the standard onboard VGA, refer
to Section 6.7.5.