HP Integrity rx4640 Server - Manual (Page 29)

Upgrading or replacing controller options 29
Replacing the P800 cache module or controller
CAUTION: Electrostatic discharge can damage electronic components. Be sure you are
properly grounded before beginning this procedure.
1. Close all applications, and then power down the server. This procedure flushes all data from the
cache.
2. Observe the BBWC Status LED (" Battery pack LEDs " on page 44 ).
o If the LED is blinking every 2 seconds, data is trapped in the cache. Restore system power, and
repeat the previous steps in this procedure.
o If the LED is not lit, proceed with the next step.
WARNING: There is a risk of explosion, fire, or personal injury if the battery pack is not
properly handled. Refer to "Battery replacement notice (on page 51 )" before installing or
removing any item that contains a battery pack.
3. Remove the controller from the server.
4. Pull the flanges on the battery clip outward (1), and then swivel the clip 180 degrees so that it rests
on the batteries (2).
5. Swivel the latches on the DIMM connector outward (1).