Internal Diagnostic Leds - Cisco UCS C220 M4 Installation And Service Manual
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- Maintaining the server (72 pages) ,
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Status LEDs and Buttons
Internal Diagnostic LEDs
The server has internal fault LEDs for CPUs, DIMMs, fan modules, SD cards, the RTC battery, and the
mLOM card. These LEDs are available only when the server is in standby power mode. An LED lights
amber to indicate a faulty component.
See
Figure 3-3
1
2
3
Table 3-3
LED Name
Internal diagnostic LEDs (all)
Cisco UCS C220 M4 Server Installation and Service Guide
3-6
Figure 3-3
for the locations of these internal LEDs.
Internal Diagnostic LED Locations
Fan module fault LEDs (one next to each fan
connector on the motherboard)
CPU fault LEDs (one in front of each CPU)
DIMM fault LEDs (one in front of each
DIMM socket on the motherboard)
Internal Diagnostic LEDs, Definition of States
1
2
3
5
4
SD card fault LEDs (one next to each bay)
5
RTC battery fault LED
6
mLOM card fault LED (on motherboard next
to mLOM socket)
State
Off—Component is functioning normally.
•
Amber—Component has failed.
•
Chapter 3
Maintaining the Server
4
6
OL-32473-01
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- Initial Server Setup
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