User's Guide

1. Installing Internal Optional Devices

Express5800/R120e-1M User’s Guide

Chapter 2 Preparations

1.11

Extra Battery / Flash Backup Unit for RAID Controller

If a RAID Controller (N8103-161/168/172/173/174) is installed, use the extra battery or flash backup unit (FBU)

to avoid data loss caused by accidents including temporary blackout during a Write Back operation. The model

of the extra battery and flash backup unit to be used depends on RAID Controller.

• For N8103-172/173/174, use N8103-153.

• For N8103-161/168, use FBU.

1.11.1

Handling precautions

Observe the following when using extra battery or FBU. Ignoring these precautions may cause damage to your

data or other devices.

• Use the extra battery or FBU appropriate to the RAID Controller to be used.

• The extra battery is an electronic device sensitive to static electricity. Before installation, touch the metal

frame part of the server to discharge the static electricity from your body.

• Do not drop or bump the extra battery or FBU.

• For recycling and disposing of the extra battery or FBU, refer to the User’s Guide that comes with the

RAID Controller or extra battery.

1.11.2

Installing Battery (N8103-153/162)

This section describes the procedure of installing a battery for RAID Controller (N8103-149/150/151/160).

1. See steps 1 to 6 in Chapter 2 (1.3 Overview of Installation and Removal) for preparations.

2. Remove the two screws and remove PCI

riser card.

3. Remove the support bar.