Dell PowerEdge 1650 - Manual (Page 48)

5. Secure the ROMB card with the thumbscrew (see Figure 6 -12 ).
6. Check that the ROMB back-up battery (see Figure 6 -12 ) is connected to the ROMB card.
7. If necessary, connect the ROMB battery cable.
8. Close the system covers.
9. Reconnect the system and peripherals to their power sources, and turn them on.
10. Enter the System Setup program and verify that the setting for the SCSI controller has changed to reflect the presence of the RAID hardware (see
"Using the System Setup Program" in your User's Guide).
11. Install the RAID software (see the ROMB card software documentation for more information).
Replacing the System Battery
The system battery is a 3.0-V, coin-cell battery that 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.
You can operate the system without a battery; however, the system configuration information maintained by the battery in NVRAM is erased each time you
remove power from the system. Therefore, you must reenter the system configuration information and reset the options each time the system boots until you
replace the battery.
To replace the battery, perform the following steps.
1. Enter the System Setup program and, if possible, make a printed copy of the System Setup screens (see "Using the System Setup Program" in the
User's Guide).
2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
3. Open the system doors (see " Opening the System Doors " in "Troubleshooting Your System").
4. Remove the system battery (see Figure 6 -1 for its location).
You can pry the system battery out of its socket with your fingers or with a blunt, nonconductive object such as a plastic screwdriver.
5. Install the new system battery with the side labeled "+" facing up (see Figure 6 -13 ).
Figure 6-13. Installing the System Battery
CAUTION: Before you perform this procedure, you must turn off the system and disconnect it from its power source. See "Protecting Against
Electrostatic Discharge" in the safety instructions in your System Information document.
CAUTION: There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent type
recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions.