Sun Microsystems SPARCcenter 2000 Service Manual page 68

3
A.1
Replace the SuperSPARC
module (in module slot A)
and attempt power on.
Verify that system
recognizes the module.
Observe POST messages.
Do board LEDs
light?
Yes
B
3-4
If the system does not power up or run, the SuperSPARC
module(s) may be faulty or may not be seated properly.
How many
1
modules are
there?
Swap module A and module B.
Alternatively, try each module
alone (in module slot A).
No
Do board LEDs
Replace system board but
install original modules
onto new board.
Figure 3-3 Branch A.1: Checking the SuperSPARC Modules
SPARCcenter 2000/2000E Service Manual—June 1996
A moduleless system board
cannot run diagnostics
0
(unless assisted by the
system master). Replace with
a system board having
SuperSPARC modules.
2
Yes
Replace the faulty module
and power on system. Verify
light?
that system recognizes two
modules. Observe POST
messages.
No
B