Dell 58296 User Manual
CLIENT USER’S GUIDE
Dell® PowerEdge® Expandable RAID
Controller
Battery Backup Module Guide
Dell® PowerEdge® Expandable RAID Controller
Information in this document is subject to change without notice.
1996 Dell Computer Corporation. All rights reserved.
1996 American Megatrends, Inc. All rights reserved.
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Part Number 58296
PowerEdge Battery Backup Module User’s Guide
ii
Preface
The PowerEdge Battery Pack Module is a mezzanine card that
mounts on top of the PowerEdge adapter card. The PowerEdge
Battery Backup Module provides emergency battery power for
the cache memory mounted on the PowerEdge adapter card..
Technical Support If you need technical assistance, see the “Getting Help” Chapter in the
Installation and Troubleshooting Guide that accompanied your
Dell computer.
Dell TechConnect BBS The TechConnect BBS permits you to access technical
information about the Dell PowerEdge Expandable RAID
Controller. For the correct BBS number in your area, see the
“Getting Help” chapter in the Installation and Troubleshooting
Guide that accompanied your Dell computer.
Web Site You can access the Dell Computer Corporation web site at:
http://www.us.dell.com
Preface
iii
1 Installing the Battery Pack
Overview
The PowerEdge Battery Backup Module protects the data handled
by the PowerEdge® Expandable RAID Controller by providing
protection from power supply interruptions to the PowerEdge
cache memory.
The PowerEdge Battery Backup Module monitors the voltage
level of the DRAM modules installed on the PowerEdge card and
supporting circuitry. If the voltage drops below a predefined level,
the Battery Backup Module switches the memory power source
from the PowerEdge card to the battery pack attached to the
PowerEdge Battery Backup Module.
As long as the voltage level is below the predefined value, the
PowerEdge Battery Backup Module provides the memory refresh
cycles necessary to retain the contents of the PowerEdge memory
modules.
If the voltage level returns to an acceptable level, the Battery
Backup Module switches the power source back to the
PowerEdge adapter card.
Cont’d
Chapter 1 Installing the Battery Pack 1
Overview, Continued
Battery Backup Module The backup module is shown below. There are no
jumpers to set. There are only two connectors that attach this
daughtercard to the PowerEdge controller card. Two three-pin
connectors (J1 and J2) attach the primary onboard battery pack
and a secondary battery pack.
Bottom of board
J5
J6
J2
Front of board
P/N: BAT-NIMH-4.8.01
CAUTION
ATTENTION
American Megatrends, Inc.
Danger o f ex plo sion if ba ttery is inco rrec tly replac ed. Replace
only with the same or equivalent type recom mended by the
ma nufacturer. D isp ose of used batteries according to the
ma nufacturer's instructio ns.
Il y a danger d'e xplosion s'il y a remp lac ement incorrect de la
batterie. Rem placer uniquement avec une batterie du mem e]
typ e o u d'un type equ iva len t recom mande p ar le c onstructeur.
Me ttre au rebut les batteries usagees conformement aux
instructions du fab ricant.
WARNING
PROMARK YYWW IIZ9503MSO
BEFORE ADDING OR REMOVING DRAM MODULE, DISCONNECT
BATTERY PACK FROM BATTERY BACKUP MODULE.
2 PowerEdge Battery Backup Module User’s Guide
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