Service manual
RBD 0 is the same as the power-up self-test. It is useful for running several
passes when a processor fails self-test intermittently. Section 3.8.1 shows
an example and lists the tests.
RBD 1 is the same as the extended CPU/memory test. It is useful
for running several passes when a processor fails self-test intermittently.
Section 3.8.2 shows an example and lists the tests.
RBD 2 is the set of tests that the boot processor runs for each DWMBB
VAXBI-to-XMI adapter when the system is powered on. (The DWMBB
has no on-board self-test of its own.) The diagnostic reports whether the
<REFERENCE>(XBI_PLUS) passed and whether each I/O device on that
adapter’s VAXBI bus passed its own self-test.
RBD 3 is a set of memory tests that sizes and runs extended tests on all of
memory. Section 6.11 and Section 6.12 show an example of memory RBDs
and list the tests.
RBD 4 is a set of exhaustive cache tests. It is not meant to be used
frequently—you must explicitly request each test to run. The complete
set of seven tests takes over one hour.
For a detailed explanation of the diagnostic printout, see Chapter 2.
<REFERENCE>(xyp) Scalar Processor 3–25










