Internal Diagnostic Leds - Cisco UCS C240 Installation And Service Manual

Status LEDs and Buttons

Internal Diagnostic LEDs

The server is equipped with a SuperCap voltage source that can activate internal component fault LEDs
up to one half-hour after AC power is removed. The server has internal fault LEDs for fan modules and
DIMMs.
To use these LEDs to identify a failed component, press the front or rear Identification button (see
Figure 3-1
See
Figure 3-3
1
Table 3-3
LED Name
Internal diagnostic LEDs (all)
Cisco UCS C240 Server Installation and Service Guide
3-6
or Figure 3-2) with AC power removed. An LED lights amber to indicate a failed component.
Figure 3-3 for the locations of these internal LEDs.
Internal Diagnostic LED Locations
1
FAN1
FAN2
SAS2
SAS1
FAN3
FAN4
FAN5
FAN6
Fan module fault LEDs (one on each fan
module)
Internal Diagnostic LEDs, Definition of States
2
SAS1
SAS2
CPU1
CPU2
DIMM fault LEDs (one next to each DIMM
2
socket on the motherboard)
State
Off—Component is functioning normally.
•
Amber—Component has failed.
•
Chapter 3 Maintaining the Server
Riser 1
Riser 2
OL-25761-01