IBM eServer BladeCenter T8720 Installation And User Manual page 95

Table 5. Light path diagnostics (continued)
Lit LED Cause
Active Primary management module.
Power module
System error A critical error has occurred in the power
module.
Blower module
System error The blower has failed or is operating too
slowly.
I/O module
System error A critical error has occurred in the I/O module.
Action
If your BladeCenter T has two management
modules, the Active LED indicates which is the
primary management module.
Reseat the power module. If the problem
remains, replace the module.
If your BladeCenter T unit has a redundant
module for this power module, the BladeCenter
T unit continues to function using the
redundant module.
Reseat the blower module. If the problem
remains, replace the blower module as soon
as possible, to regain cooling redundancy.
The BladeCenter T unit continues to function.
The remaining three blowers increase their
speed to cool the BladeCenter T unit and blade
servers.
Reseat the I/O module. If the problem remains,
replace the module.
Chapter 6. Solving problems
81