Using Light Path Diagnostics To Troubleshoot The System Board - Intel SBXD62 - Server Compute Blade Installation And User Manual

Using Light Path Diagnostics to Troubleshoot the System Board

You have to remove the blade server from the Intel® Blade Server Chassis SBCE, open
the cover, and press the light path diagnostics switch (SW4) to light any error LEDs that
were turned on during processing. These LEDs can be used to help troubleshoot system-
board component problems. See the illustrations in this section,
LEDs" on page 13
information about locating light path diagnostics LEDs and what to do if there is an error
LED lit.
light path diagnostics LED locations, settings, and error solutions. Refer to these
illustrations and tables when solving problems with the blade server.
Power is available to relight the light path diagnostics LEDs for a small period of time
after the blade server is removed from the Intel® Blade Server Chassis SBCE. During that
period of time, you can relight the light path diagnostics LEDs for a maximum of 25
seconds (or less, depending on the number of LEDs that are lit and the length of time the
blade server is removed from the Intel® Blade Server Chassis SBCE) by pressing the light
path diagnostics button. The light path diagnostics power present LED (CR111) is lit
when the light path diagnostics button is pressed if power is available to relight the blade-
error LEDs. If the light path diagnostics power present LED (CR111) is not lit when the
light path diagnostics button is pressed, no power is available to light the blade-error
LEDs, and they will be unable to provide any diagnostic information.
The following illustration shows the LEDs on the system board.
DIMM 3 Error LED
(CR5)
DIMM 4 Error LED
(CR6)
I/O expansion
connectors
SAS 1 hard
disk drive LED
(CR262)
12
and Table 3, "Light Path Diagnostics Panel LEDs" on page 13
"Light Path Diagnostics LEDs" on page 51
Light path diagnostics (SW4)
SAS trays/connectors
Intel® Server Compute Blade SBXD62 Installation and User's Guide
provides more information about the
DIMM 1 error LED (CR201)
DIMM 2 error LED (CR4)
Microprocessor 1 error LED (CR12)
Microprocessor 2 error LED (CR13)
3V lithium battery
SAS 0 Hard disk drive LED (CR260)
Table 2, "System Board
for
Reserved
Control panel
connector