Intel SR1690WB - Server System - 0 MB RAM, Service Manual

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Intel
®
Server System SR1690WB Service Guide 13
Intel
®
Light Guided Diagnostics
The server system contains numerous LEDs providing the following functions:
•
The System Status LED on the front and back panels (see Figure 6 ) shows the
overall health of the system (green, blinking green, blinking amber, and off).
•
The System Identification LED on the back panel (see Figure 6 ) helps identify the
server from among several servers. By default, the ID LED is off, and blue when
activated by button or software.
•
DIMM Fault LEDs on the server board (see Figure 6 ) help identify failed and failing
DIMM slots. The DIMM fault LEDs turn on (amber) if there is a DIMM fault.
•
POST Code Diagnostic LEDs on the server board (see Figure 6 ) change color or
state (off, green, red, amber) according to the POST sequence.
•
The 5-V STBY LED on the server board (see Figure 6 ) is illuminated (green) when
AC power is applied.
•
The Fan Fault LEDs on the server board (see Figure 6 ) help identify failed and
failing fans. The fan fault LEDs turn on (amber) if there is a fan fault.