Intel SBXD62 User Guide - Page 22

Using Light Path Diagnostics to Troubleshoot the System Board, Table 2, System Board,

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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 systemboard component problems. See the illustrations in this section, Table 2, "System Board LEDs" on page 13 and Table 3, "Light Path Diagnostics Panel LEDs" on page 13 for information about locating light path diagnostics LEDs and what to do if there is an error LED lit. "Light Path Diagnostics LEDs" on page 51 provides more information about the 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 bladeerror 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. Light path diagnostics (SW4) DIMM 1 error LED (CR201) DIMM 2 error LED (CR4) Microprocessor 1 error LED (CR12) DIMM 3 Error LED (CR5) DIMM 4 Error LED (CR6) I/O expansion connectors SAS 1 hard disk drive LED (CR262) Reserved Control panel connector Microprocessor 2 error LED (CR13) 3V lithium battery SAS 0 Hard disk drive LED (CR260) SAS trays/connectors 12 Intel® Server Compute Blade SBXD62 Installation and User's Guide

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12
Intel® Server Compute Blade SBXD62 Installation and User’s Guide
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,
Table 2, "System Board
LEDs"
on page 13
and
Table 3, "Light Path Diagnostics Panel LEDs"
on page 13
for
information about locating light path diagnostics LEDs and what to do if there is an error
LED lit.
“Light Path Diagnostics LEDs” on page 51
provides more information about the
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.
Light path diagnostics (SW4)
DIMM 1 error LED (CR201)
DIMM 2 error LED (CR4)
Microprocessor 1 error LED (CR12)
Microprocessor 2 error LED (CR13)
Reserved
Control panel
connector
3V lithium battery
SAS 0 Hard disk drive LED (CR260)
SAS trays/connectors
SAS 1 hard
disk drive LED
(CR262)
I/O expansion
connectors
DIMM 4 Error LED
(CR6)
DIMM 3 Error LED
(CR5)