56 Upgrade and Maintenance Manual TX120 S3
Basic hardware procedures
Ê Remove the server cover as described in section "Opening the server" on
page 61.
Ê Press the Indicate CSS button (1) to highlight defective components.
Component LEDs
I LEDs A, B and C are visible from the outside on the server rear. All other
LEDs are only visible if the server cover has been opened. In order to
access memory LEDs (D), the system fan module needs to be removed
(see section "Removing the system fan module" on page 155).
Indicator Status Description
A
GEL
(Global Error
LED)
off no critical event (non CSS component)
orange on
prefailure detected (non CSS
component)
orange
flashing
non CSS component failure
Possible reasons:
– sensors report overheating
– sensor is defective
–CPU error
– software reports an error
B
CSS
(Customer Self
Service)
off no critical event (CSS component)
yellow on prefailure detected (CSS component)
yellow
flashing
CSS component failure
C Identification blue on
server has been highlighted using
ServerView Operations Manager or the
ID button on the front panel for easy
identification
D Memory
off memory module operational
orange on memory module failure
E System fans
off fan running
orange on fan failure
F PCI card
off PCI card operational
orange on PCI card failure
G AUX power yellow on AUX voltages are within range
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