A 900 Series HP 3000 system undergoes a self-test upon
reset. The Series 922 through Series 949 systems test
various system components including:
central processing unit (CPU)
floating-point coprocessor
translation look-aside buffer (TLB)
installed memory controllers and arrays
all I/O cards that have built-in, executable test routines
The self-test also initializes the channel I/O adapter (CA)
and device adapter (DA) boards along with the first memory
controller.
The Series 950 through Series 980 systems verify that enough
hardware is
functioning to load and execute extended diagnostic programs
from initial
program load (IPL). This involves testing the processor,
the first memory
controller, the console and boot devices, and the I/O paths
to the console
and boot devices.
If the initial Series 950 through Series 980 self-test is
successful, the code performs a full processor test by
testing the following:
central processing unit (CPU)
system interface unit (SIU)
translation look-aside buffer (TLB)
After resetting and testing, the system either autoboots or
initiates an interactive boot sequence. Whether or not the
system autoboots depends on how the autoboot flag is set and
the presence of an autoboot file. For information on using
the AUTOBOOT command, refer to Chapter 3 “System Startup Functions”.
