Light Path Diagnostics Table - IBM eServer BladeCenter JS20 Type 8842 Installation And User Manual

Light path diagnostics table

Use Table 3 on page 93 to help determine the cause of the error and the action that
you should take.
Notes:
v Power is available to light the light path diagnostics LEDs for a short period of
v Error LED CR29 is not used.
v For the locations of the corresponding dual inline memory module (DIMM)
DIMM 1 error
LED (CR40)
92
BladeCenter JS20 Type 8842: Installation and User's Guide
time after the blade server is removed from the BladeCenter unit. During that
period of time, you can light 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 BladeCenter unit) by pressing the light
path diagnostics button (SW1).
sockets and microprocessor connectors on the system board, see the illustration
in "System-board internal and option connectors" on page 29.
DIMM 3 error DIMM 2 error
LED (CR46) LED (CR45)
DIMM 4 error
LED (CR53)
Microprocessor 0
error LED (CR19)
Temperature
error LED (CR16)
Light Path Diagnostics
(SW1)
Microprocessor 1
error LED (CR58)
Service processor
error LED (CR27)
NMI error
LED (CR17)
System board
error LED (CR20)
Reserved (CR29)