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100 Sun Fire V490 Server Administration Guide • August 2004
About Isolating Faults in the System
Each of the tools available for fault isolation discloses faults in different field–
replaceable units (FRUs). The row headings along the left of
TABLE 6-5 list the FRUs
in a Sun Fire V490 system. The available diagnostic tools are shown in column
headings across the top. A check mark (
✔) in this table indicates that a fault in a
particular FRU can be isolated by a particular diagnostic.
TABLE 6-5 FRU Coverage of Fault Isolating Tools
LEDs POST OpenBoot Diags
CPU/Memory Boards
✔
IDPROM
✔
DIMMs
✔
DVD Drive
✔
FC-AL Disk Drive
✔ ✔
Centerplane
✔✔
SC Card
✔
PCI Riser
✔✔
FC-AL Disk Backplane
✔
Power Supplies
✔
Fan Tray 0 (CPU)
✔
Fan Tray 1 (PCI)
✔