Dell PowerVault 770N (Deskside NAS Appliance) - Manual (Page 60)

Replacing the SCSI Backplane Board
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 computer, and protecting against electrostatic discharge.
1. Lower the backplane board into the system board tray.
2. Connect the control-panel cable to the SCSI backplane board (see " Replacing the Control Panel ").
NOTICE: To avoid damage to the system, align the bottom of the backplane board in the board's mounting grooves
before rotating the top of the board onto the grounding tabs (see Figure 4-25 ).
3. Align the bottom of the backplane board in the board's mounting grooves (see Figure 4-25 ).
4. Rotate the top of the backplane board onto the board's grounding tabs.
5. Slide the backplane board toward the left side chassis wall about 0.5 inch.
6. Tighten the thumbscrew on the backplane board.
7. Install all SCSI hard drives (see " Installing a Hard Drive ").
8. Replace the CD/diskette drive (see " Replacing the CD/Diskette Drive ").
9. Replace the system board tray (see " Removing the System Board ").
10. Replace the control-panel cable cover (see " Removing the Control Panel ").
11. Replace the cover (see " Replacing the Cover ").