ExpressScope LEDs

On the front of the FT server with the front bezel removed, the EXPRESSSCOPE LEDs (amber) can be accessed to determine if either CPU/IO module has failures. The LEDs on the upper line correspond to the upper names and the LEDs on the lower line correspond to the lower names.

Note: If any component has failed in a CPU/IO module including DIMMs and the power supply, the entire CPU/IO module is replaced. All hard disk drives should be labeled for slot location, then removed from the faulty unit. When a replacement module is received, the hard disk drives should be replaced into the same slots to maintain the mirrored images.

Name	Meaning	Possible Cause	Action
Module Power LED	Indicates Power condition of module.		Green: Module DC ON Green blinking: Module DC OFF (AC ON) Off: Module AC OFF
PRIMARY LED	Indicates Primary state of IO Module.		Green: IO part of Module is working on priority. Off: Module is working as Secondary.
Module ID LED	Pushing ID Switch, or demanding ID from remote.		Green: Pushed ID Switch Green Blinking: demanded ID from remote Off: No demand
SAFE TO PULL	Showing condition whether a module can be unmounted or not.		Green: duplexing System can work even if a module is pulled out. Green blinking: Simplexing System can not work if a module is pulled out. Off: Some offline parts exist. System can work even if a module is pulled out.
CPU (CPU part error LED)	Amber LED illuminates when a failure occurs in CPU of CPU/IO module.	Processor failure CPU/IO module failure DIMM failure	Replace CPU/IO module.
I/O (I/O part error LED)	Amber LED illuminates when a failure occurs in I/O of CPU/IO module.	CPU/IO module failure PCI Board failure	Replace CPU/IO module.
VLT (Power error LED)	Amber LED illuminates when electric voltage failure occurs in CPU/IO module.	CPU/IO module failure Power Supply Unit failure	Replace CPU/IO module.
MEM NUMBER (Memory slot error LED)	Amber LED illuminates when a failure occurs on the memory of CPU/IO module.	Four LEDs indicate DIMM Slot number. Target DIMM failure CPU/IO Module failure Processor failure	Replace CPU/IO Module.
PSU (Power Supply Unit error LED)	Amber LED illuminates when failure occurs on the power supply unit of CPU/IO module.	Processor failure CPU/IO module failure	Replace CPU/IO module. The LED turns on if DC power is not provided in spite of power on request.
TEMP (Abnormal temperature LED	Amber LED illuminates when temperature in CPU/IO module becomes abnormal.	Cooling problem (Fan Failure) Processor placement Processor failure CPU/IO Module failure	At first, confirm whether event log is registered by Temperature sensor. Replace CPU/IO module. There is a possibility of sensor failure.
FAN (FAN error LED)	Amber LED illuminates when failure occurs on the cooling fan of CPU/IO module.	FAN failure CPU/IO Module failure	At first, confirm whether event log is registered by FAN sensor. Is fan working? Is there a clog of module? Replace CPU/IO module. There is a possibility of sensor failure.