Intel SE7520JR2 - Manual (Page 48)

Troubleshooting
LED Information
The Intel ® Server Board SE7520JR2 includes LEDs that can aid in troubleshooting your system. A
table of these LEDs with a description of their use is listed below.
LED Name Function Location Color Notes
ID Aid in server
identification from the
back panel Control panel and
board rear left
corner Blue Press ID LED button or user
Server Management
software to turn on the LED.
System fault Visible fault warning Control panel and
board rear left
corner Green or Amber
ƒ Green = No Fault
ƒ Green Blink =
degraded
ƒ Amber = critical error
or non-recoverable
ƒ Amber blink = non-
critical
ATA drive
activity Control panel Control panel Green Blinking = Activity. No action
required.
Memory fault
1–6 Identify failing memory
module DIMM end rear of
board Amber On = Fault
Diagnostic
LEDs. 1–4
(LSB, bit1, bit2,
MSB) Displays port 80 POST
codes Center back edge of
board Each LED can be
Off, Green,
Amber, Red See the POST code table
CPU 1 & 2 Fan
Fault Identify fan failure Front center board Amber On = Fault
CPU 1 & 2
Fault Identify processor failure 1” behind processor
socket Amber On = Fault
5v Standby Identify 5v standby
power on state Front left board Amber On = 5v standby power on
Power LED Identify the power state
of the system Control Panel Green
ƒ Off = Power is off (off
or S5)
ƒ On = Power on or S0)
ƒ Slow Blink = Low
power state (S1 – S3)
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