Sun Microsystems SunSwift SPARCserver 1000, Service Manual

Page: 69 / 218

Troubleshooting Flow Diagrams 3-5
3
Figure 3-4 Branch A.2: Checking the SuperSPARC Modules
A.2
B
1
2
Yes
No
Yes
If the system still does not power up or run, the
module(s) may be faulty or not seated properly.
Replace the SuperSPARC
module (in SPARC slot 0)
and attempt power on.
Verify that the system
recognizes the module. See
Chapter 3 for LED patterns.
Observe POST messages.
Replace the faulty module and power
on system. Verify the system
recognizes two modules. Observe
POST messages.
Replace system board but install
original module/s onto new board.
0
A module-less system board cannot
run diagnostics (unless assisted by
the system master). Replace with a
system board having SuperSPARC
modules.
Board LEDs show
incrementing
pattern?
Swap module 0 and module 1.
Alternatively, try each module alone
(in slot 0). Note: SuperSPARC
modules must be the same type.
How many
modules are
there?
Board LEDs show
incrementing
pattern?
No