User`s guide

Table 2–2 SROM Memory Tests, CPU Jumper J1
Bank
# Test Description Test Results
6 Backup Cache Tag
Test
Test status displays on OCP:
1.2.3.done.
If the tests take longer than a few seconds between
each number displayed in the test count, there is a
problem with the cache—replace the CPU daughter board
(Chapter 6).
2 Cache Test: Tests
backup cache.
Test status displays on OCP:
....done.
If the test takes longer than a few seconds to complete,
there is a problem with the backup cache—replace the
CPU daughter board (Chapter 6).
4 Memory Test:
Tests memory with
backup and data
cache disabled.
Test status displays on OCP:
12345.done.
If an error is detected, the bank number and failing
SIMM position are displayed. The following OCP message
indicates a failing SIMM at bank 0, SIMM position 2.
FAIL B:0 S:2
Test duration: Approximately 10 seconds per 8 megabytes
of memory.
Figure 2–2 shows the bank and SIMM layout for
AlphaServer 1000 systems. After determining the bad
SIMM, refer to Chapter 6 for instructions on replacing
FRUs.
Note: The memory tests do not test the ECC SIMMs. If
the operating system logs five or more single-bit correctible
errors, swap the suspected ECC SIMMs with good SIMMs
and repeat the memory test.
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2–4 Power-Up Diagnostics and Display