System Slave Boards; Selecting A Supersparc Module Location - Sun Microsystems SPARCcenter 2000 Manual

D.2 System Slave Boards
D.3 Selecting a SuperSPARC Module Location
Note – The system master board must connect to a terminal, or you will not
see the OBP message. If the terminal is connected to the wrong board, the
message will not appear. At this point the system may seem to be locked up,
but OBP is only pausing, waiting for you to respond.
If a color monitor is used, a color-graphics interface card must be installed in
SBus slot 1. Only one color-graphics interface is allowed in the system.
The remaining system boards are "slave boards," because the master board
exercises control during portions of boot and other system operations.
For uniformity of configuration and ease of service, install and equip slave
system boards according to the guidelines below. (These guidelines are not
required by system architecture, but are strongly recommended, to maintain
consistency between systems and to simplify service procedures.)
Install slave boards in the lowest card cage slot numbers, following the
system master.
Installing SuperSPARC modules strictly according to the guidelines
presented in Section D.3.
Install SIMM devices strictly according to the guidelines presented in
Section D.6.
When installing or replacing a SuperSPARC module, use the following
guidelines to verify that the location you have selected is correct.
Each system board has two SuperSPARC module connectors, marked A and B.
Refer to Figure D-2. Modules should first be installed in the A connectors, in
consecutive card cage slots starting from card cage slot 0. After all of the A
connectors have been filled, begin filling the B connectors, starting from slot 0.
General Rules for System Configuration
D
D-5