Removing And Replacing Covers; Removing The Service Access Cover - IBM Power System LC921 9006-12P Service Manual

• Sensor not initialized
• Sensor function is not initialized
Red (faulty) indicator:
• Critical threshold exceeded (an event requires a service action)
• Service action required for hard fail
• Partial function failure that reached a "service action required" state
• A deconfigured resource requires a service action
Green (good) indicator:
• FRU or sensor is plugged in and fully operational
• Recoverable event is below the critical "service action required" threshold
• FRU or sensor returned to "normal" operating range (for threshold sensors)
Removing and replacing covers on an 9006-12P system
Learn how to remove and replace the covers for an IBM Power System LC921 (9006-12P) system so that
you can access the hardware parts or service the system.
Removing the service access cover from an 9006-12P system
Learn how to remove the service access cover from an IBM Power System LC921 (9006-12P) system.
About this task
Attention: For safety, airflow purposes and thermal performance, the service access cover must
be installed and fully seated before you power on the system.
Procedure
1. Ensure that you removed both power cords from the system. For instructions, see "Disconnecting the
power cords from the 9006-12P system" on page 102.
(L005)
CAUTION: Hazardous energy present. Voltages with hazardous energy might cause heating
when shorted with metal, which might result in splattered metal, burns, or both. (L005)
2. Remove the two cover screws (1), from the rear of the cover.
3. Press both buttons on the top cover (2) to release the latches as shown in Figure 77 on page 97, and
push the cover back about 0.5 in (1 cm) until it stops.
If the buttons do not easily press down, partially remove the drives directly under the buttons.
96 Power Systems: Servicing the IBM Power System LC921 (9006-12P)