System information

Troubleshooting Hardware and Booting Problems 3-37
LightStream 2020 Startup
Network processor
problems
If the NP fails to power up, check its access card at the back of the chassis.
An NP requires an NPAC
6
; it cannot operate with any other kind of access
card.
If the system fails to boot, it could indicate either a problem with the NP, a
problem with the NP’s hard disk drive, or a problem with the software on the
hard drive.
If you are experiencing any of the following symptoms, you might need to
replace the NP card:
• POST fails (the FLT LED stays lit and the POST results indicate a
problem).
• The NP fails even when moved to the other slot. (If the card fails in one
slot but operates properly in the other, suspect a problem with the
midplane.)
• Hardware diagnostics fail.
• You cannot get to the CLI to run the diagnostics.
• The card fails to load.
• The NP or its access card cannot be fully inserted into its slot. This
probably indicates damage to the connectors on either the card or the
midplane. Inspect all the connectors and replace the card or the midplane
if you find damage.
Possible Problem Solution