E-4
SPARCserver 1000 System Service Manual—June 1996
E
The Open Boot PROM resides below an SBus card location as shown in
Figure E-1. Remove the SBus card as required to expose the OBP for
examination to determine the OBP revision level.
Figure E-1
System Board Open Boot PROM Location
The OpenBoot PROM on the system master is usually the OBP master. This
PROM controls the boot process. If the system master is replaced at the
customer site by a new system board, the OpenBoot PROM on the replacement
board will lack the specific system information required for the OBP master. In
a single board system, OBP will program the PROM on the board by default.
However, in a multiple-board configuration, OBP will prompt you to select a
system board to be programmed as the OBP master.
E.2.3.1 Additional System Master Details
If a serial-interface TTY console is used, it must be connect to serial port A on
the system master.
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.
Part Number
U Position
525-1325-xx
U1000
525-1326-xx
U1001
525-1327-xx
U1003
525-1328-xx
U1004
Содержание SunSwift SPARCserver 1000
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