Diagnostic Leds; System-Board Diagnostic Leds - IBM IntelliStation A Pro 6224 Hardware Maintenance Manual And Troubleshooting Manual

Diagnostic LEDs

The system board and microprocessor board have LEDs that help isolate errors.

System-board diagnostic LEDs

Figure 2 shows the diagnostic LEDs on the system board.
Rear system fan 1
error LED
Figure 2. System-board diagnostic LEDs
Each error LED is lit to indicate a problem with a specific component. After a
problem is corrected, the LED will not be lit the next time the computer is restarted.
If the problem remains, the LED will continue to be lit. For information about how to
correct the problems indicated by the error LEDs, see "System board error LEDs"
on page 91.
Rear system fan 2
error LED
Front Ethernet activity LED
System power LED
DIMM 1
error LED
DIMM 2
error LED
DIMM 3
error LED
DIMM 4
error LED
Microprocessor
1 fan error LED
Microprocessor
1 error LED
System-error LED
Chapter 3. Diagnostics
17