Test B - Mem - Memory - Digital Equipment VAXstation 3100 Maintenance Manual

26 Troubleshooting
Table 2-2 DZ Port Assignments
Port VMS Mnemonic ULTRIX Mnemonic
Keyboard
ITAO
Mouse/tablet
ITAi
Communication
ITA2
/dev/tty02
Printer
ITA3
/dev/tty03
2.7 TEST B - MEM - Memory -
The memory diagnostics test all of the main memory in the system including
any memory option modules installed. Therefore
any
error for the memory
must be deciphered to determine which module contains the error. There may
be more than one module containing the error.
_S ~ eJf-t~t
and the system exerciser are used to troubleshoot the memory circuits.
Enter TEST B to run self-test. Then enter TES 50 to ::;ee the results or enter
TEST 80000106 and Bat the prompt to run the Field Service system exerciser
on just the memory circuits (loopback required on communication port).
--A- code-oi-OOXXTOOOi-(seif~tesi)_nexi_to_th~__j ' .IBM mnemonic
indicates no
errors
det~ted
with
the memory circuits (the XX is the total amount of
memory installed in the system (in hexadecimal)). If an error is detected,
refer to Section 2.7 .1 to determine which module, the system module or one
of the memory modules, needs to be replaced.
A code of
OXXX.0001
(system exerciser) next to the MEM mnemonic
indicates no errors detected with the memory circuits (the
XXX
is the number
of pages of memory tested during the last pass of the exerciser (1 page= 512
bytes)). Table
2- 3
lists the MEM system exerciser error codes and lists which
module needs to be replaced when an error is detected.