Dell PowerEdge 1750 - Manual (Page 38)

Installing the System Battery
1. Install the new system battery. See Figure 4 -20 .
a. Support the battery connector by pressing down firmly on the positive side of the connector.
b. Hold the battery with the "+" facing up, and slide it under the securing tabs at the positive side of the connector.
c. Press the battery straight down into the connector until it snaps into place.
2. Close the system covers. See " Closing the System Covers ."
3. Reconnect the system and any attached peripherals to their electrical outlets, and turn them on.
4. Replace the optional front bezel, if applicable. See " Replacing the Bezel ."
5. Enter the System Setup program to confirm that the battery is operating properly. See " Using the System Setup Program ."
6. Enter the correct time and date in the System Setup program's Time and Date settings.
7. Re-enter any system configuration information that is no longer displayed on the System Setup screens, and then exit the System Setup program.
8. To test the newly installed battery, power down and disconnect the system from its electrical source for at least an hour.
9. After an hour, connect the system to its electrical source and turn on the power.
10. Enter the System Setup program and if the time and date are still incorrect, replace the system board.
SCSI Backplane Board
The bottom of the SCSI backplane board provides three connectors for connecting up to three SCSI hard drives to the system board SCSI controller.
Connectors for the CD drive and diskette drive are on the top of the backplane.
Removing the SCSI Backplane Board
1. Remove the optional front bezel, if present. See " Removing the Bezel ."
2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
3. Open the system covers. See " Opening the System Covers ."
4. Pull each hard-drive carrier partially out of its slot, approximately 2.5 cm (1 inch).
Figure 4-21. SCSI Backplane Board
NOTICE: To avoid damage to the battery connector, you must firmly support the connector while installing or removing a battery.
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See
your System Information Guide for complete information about safety precautions, working inside the system, and protecting against
electrostatic discharge.