NAS-4100 NETWORK ATTACHED STORAGE SERVICE MANUAL
Case Fan
Symptom
Corrective Action
Press the select button of LCD module twice to
check the fan speed, and it shows zero.
The system is on and the LCD module displays
indicates that the system temperature is too
high.
Open the top cover, check
all the fans and replace
the failed one.
LCD Module
Symptom
Corrective Action
The system works well but no message is
displayed on the LCD module.
The system works well but no LED on the LCD
module lights up.
Replace the LCD module.
Hard Disk / Drive Tray
Symptom
Corrective Action
The hard drive makes strange sounds when
working.
Replace the hard disk that
makes strange sound.
LCD module shows below error message:
"disk
drive
n failed or unplugged"
Event logs show below error message:
"disk
drive
n failed or is unplugged”
Entering system administration web page and
select “Disk Configuration”. “No Disk” message
is shown when checking physical disk status on
the page of “View Disk & Volume Status.”
Replace the hard disk with
a known good hard disk.
If the failure persists,
replace the drive tray.
Note: If the failed drive is not configured to a RAID 1 or RAID 5 disk
volume, there is no chance to retrieve the data stored in it.
IEI CONFIDENTIAL
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