14
DECserver 900GM Installation
Problem Solving Using the LEDs (Cont.)
Table 2
Problem Solving Using the LEDs
Symptom
Probable Cause
Corrective Action
Power LED is off.
The module is not
receiving power.
Ensure that the release lever (if instal-
ling into a DEChub 900) or the locking
L-bracket screw (if installing into a
DEChub ONE) is locked securely.
If installing the module into a
DEChub 900, check the power status
on the Hub Manager status display. If
enough power is available, lift the re-
lease lever (if installing the module
into a DEChub ONE, loosen the lock-
ing L-bracket screw). Remove the
module.
Inspect the module’s 48-pin and
160-pin connectors for bent, broken,
or dirty pins. If any pins are broken or
bent, replace the module.
If no pins are broken or bent, reinstall
the module into the DEChub.
If the problem persists, replace the
module.
Power LED
is flashing.
The module
connection is faulty.
Lift the release lever, then reseat
the module.
Faulty DEChub 900
slot connection.
Reinstall the module into another slot.
DEChub power
supply is faulty.
If the module is installed in a
DEChub 900, replace the power sup-
ply. If the module is installed in a
DEChub ONE, replace the
DEChub ONE.
(continued on next page)
