Dell PowerEdge 2550 User Manual download pdf (Page 73)

7. Insert the RAID battery into the bracket on the underside of the system door (see Figure8-14).

Figure 8-14. Installing the RAID Battery



8. Connect the battery cable to the RAID battery connector on the system board (see Figure8-1).

9. Close the system doors, reconnect the system and peripherals to their electrical outlets, and turn them on.

10. Install the RAID software. For details, see the RAID controller documentation.

11. Enter the System Setup program and check that the setting for the SCSI controller has changed to reflect the presence of the RAID hardware. See

"Using the System Setup Program" in the User's Guide for instructions.

Replacing the Battery

The system battery maintains system configuration, date, and time information in a special section of memory when you turn off the system. The operating life

of the battery ranges from 2 to 5 years, depending on how you use the system (for example, if you keep the system on most of the time, the battery gets little

use and thus lasts longer). You may need to replace the battery if an incorrect time or date is displayed during the boot routine along with the following or

similar message:

Time-of-day not set -- please run SETUP program

Strike the F1 key to continue, F2 to run the setup utility

System CMOS checksum bad -- Run SETUP

Strike the F1 key to continue, F2 to run the setup utility

Invalid configuration information -- please run SETUP program

Strike the F1 key to continue, F2 to run the setup utility

To determine if the battery needs to be replaced, re-enter the time and date through the System Setup program (see "Using the System Setup Program" in

the User's Guide for instructions). Turn off and disconnect the system from the electrical outlet for a few hours, and then reconnect and turn the system on

again. Enter the System Setup program. If the date and time are not correct in the System Setup program, replace the battery.

NOTE: Some software may cause the system time to speed up or slow down. If the system seems to operate normally except for the time kept in the

System Setup program, the problem may be caused by software rather than by a defective battery.

NOTE: If the system is turned off for long periods of time (for weeks or months), the nonvolatile random-access memory (NVRAM) may lose its system

configuration information. This situation is not caused by a defective battery.

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