7.34 Removing the Supercapacitor (PCIe Plug-in RAID
Controller Card)
A supercapacitor is configured to provide power-off protection for an LSI SAS3108 or
PM8060 PCIe plug-in RAID controller card.
Remove the supercapacitor if it has failed or cannot provide sufficient power.
Before removing a supercapacitor, power off the server and observe electrical safety
precautions.
Procedure
Step 1 Wear an ESD wrist strap. For details, see 1 Safety Instructions.
Step 2 Determine the cabinet number and chassis number of the server, and label its panel to prevent
misoperations.
Step 3 Power off the RH2288 V3. For details, see 4.2 Powering Off the Server.
Step 4 Remove all external cables such as power and network cables.
Step 5 Remove the RH2288 V3 and put it on an ESD desktop. For details, see 3.6 Removing the
Server.
Step 6 Remove the chassis cover. For details, see 7.11 Removing the Chassis Cover.
Step 7 Remove the riser card tray above the RAID controller card. For details, see 7.19 Removing
the Riser Card.
Step 8 Locate the supercapacitor, which is in one of the four positions shown in Figure 7-64.
Figure 7-64 Supercapacitor positions
RH2288 V3 Server
User Guide
7 Replacing Parts
Issue 32 (2019-03-28) Copyright © Huawei Technologies Co., Ltd. 187
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