Error Leds - Lenovo 653417U Installation And User Manual

Error LEDs

The illustration shows the system-board LEDs. The system board has error LEDs that will help to locate
the source of the error. Run the diagnostic programs to find out the cause of the error (see "Diagnostic
tools" on page 113).
1
Fan 5 error LED
2
Fan 4 error LED
3
H8 Heartbeat LED
4
Fan 3 error LED
5
Fan 2 error LED
6
Fan 1 error LED
7
SAS/SATA Controller LED
8
IMM heart beat LED
The server is designed so that LEDs remain lit when the server is connected to an ac power source but is
not turned on, provided that the power supply is operating correctly. This feature helps you to isolate the
problem when the operating system is shut down.
Note: When you disconnect the power source from the server, you lose the ability to view the LEDs
because the LEDs are not lit when the power source is removed. Before you disconnect the power
source, make a note of which LEDs are lit, including the LEDs that are lit on the operation
information panel and LEDs inside the server on the system board.
Many errors are first indicated by a lit system-error LED on the control-panel assembly of the server. If
this LED is lit, one or more LEDs elsewhere in the server might also be lit and can direct you to the
source of the error.
138
ThinkServer RS210, Types 6531, 6532, 6533, and 6534: Installation and User Guide
9
PCI Express slot 2 error LED
10
PCI Express slot 1 error LED
11
Microprocessor error LED
12
Battery error LED
13
Standby power LED
14
System board error LED
15
DIMM 1-6 error LEDs