Dell PowerVault 735N Service Manual page 57

Removing and Replacing Parts: Dell PowerVault 735N Systems Service Manual
7. Loosen the thumbscrew on the SCSI backplane board (see
8. Slide the SCSI backplane board to the right (toward the center of the chassis) about 6.3 millimeters (a quarter-inch) and lift it off the L-
shaped mounting tabs on the hard-disk drive cage.
SCSI ID 4 Hard-Disk Drive SCSI Backplane
The SCSI ID 4 drive has a smaller SCSI backplane board on the back of its hard-disk drive cage.
Figure 17. Removing the SCSI Backplane from the SCSI ID 4 Hard-Disk Drive Cage
To remove the SCSI backplane from the
NOTICE: See "Protecting Against Electrostatic
1. Shut down the system and disconnect cables (see
2. If the optional plastic bezel is installed,
3. If you have not already done so,
4. Remove the fifth hard-disk drive
5. Remove the ribbon-style backplane cable from the 10-conductor connector on the SCSI backplane.
6. Remove the 68-conductor SCSI cable from the
7. Remove the DC power cable from the SCSI backplane board.
8. Loosen the thumbscrew securing the peripheral bay and slide the peripheral bay back 2.5 cm (one inch), then lift the peripheral bay
upwards and set it aside (see
file:///C:/Users/Phebega_Pericho/Desktop/spv735N/en/sm/remove.htm[3/15/2013 4:18:18 PM]
1 Fifth hard-disk drive
2 SCSI backplane
3 Screws (2)
fifth hard-disk drive cage, perform the following steps.
Discharge" for information on protecting the system from electrostatic discharge.
Protecting Against Electrostatic
remove it.
unlock and open the system
and carrier from the hard-disk drive cage that is mounted in the peripheral bay.
fifth hard-disk drive
Figure 8).
Figure 16).
cage
Discharge).
doors.
SCSI backplane board.