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Galaxy A16F-R2422 Installation and Hardware Reference Manual
Step 3. Re-insert the new DIMM module. Align the new DDR RAM
Step 4. Install the controller module. Once the new DIMM module has
5.4 Replacing a Faulty BBU
The A16F-R2422 comes with two (2) standard BBUs that can sustain cache
memory in the event of a power failure or in the extremely unlikely event of
both PSUs failing. The BBU provides additional data security and helps
minimize the loss of data during power shutdowns.
Each BBU consists of a bracket, battery pack, and a PCB board that
connects to the backplane board. The BBUs are pre-installed into the
subsystem in the top left corner of each controller module. Each BBU is
secured to the subsystem with two (2) retention screws. If a BBU has failed,
it should be replaced. Please read the BBU handling precautions below
before replacing it.
5.4.1 BBU Warnings and Precautions
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5-8
DIMM module with the DIMM socket and gently (but firmly) push
it in. The white clips on either side of the slot should automatically
close and lock the new DIMM module into place. (See Figure 5-8)
Figure 5-8: Installing the DIMM Module
been installed, place the controller module back in its original
location. (See Section 5.2.3)
Install or replace the BBU with BBUs supplied by your
subsystem vendors only. Use of battery cells provided otherwise
will void our warranty.
Always dispose of discharged or used batteries in an ecologically
responsible manner. Dispose of used BBUs at authorized battery
disposal sites only.
Do not use nor leave the BBU near a heat source. Heat can melt the
insulation and damage other safety features of battery cells,
possibly leading it to acid leak and resulting in flames or explosion.
Subsystem Maintenance
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