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To find out what if any errors have occurred on the system board, you must:
1. Remove the blade server from the BladeCenter unit
2. Open the cover
3. Press the light path diagnostics switch
This lights any error LEDs that were turned on during processing. It also lights a
green LED to indicate the capacitor is charged and the light path diagnostics
system is operating.
Figure 5 shows the location of the light path LEDs and the diagnostics switch.
Modular
flash drive
error LED
Light path
diagnosis
switch
Light path
diagnosis
LED
Figure 5. System-board LEDs
Pressing the light path diagnostics switch lights the appropriate LED to indicate
where an error has occurred.
System board internal and expansion card connectors
The following illustration shows the location of the connectors for user-installable
options.
12
BladeCenter QS22 Type 0793: Installation and User's Guide
I/O buffer DIMM error LED
I/O buffer DIMM error LED
NMI error LED
CPU fail LED
System board LED
Temperature fault LED
System memory DIMM
error LEDs
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