Dell PowerVault 770N (Deskside NAS Appliance) - Manual (Page 45)

1. Open the bezel (see " Removing the Bezel ").
2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
3. Remove the cover (see " Removing the Cover ").
4. Remove any full-length expansion-cards that are installed (see " Expansion Cards ").
5. Remove the front fan assembly (see " Removing the Front Fan Assembly ").
6. You must remove the expansion card guide from the system before you remove the ERA/O card. To remove the
expansion card guide, perform the following steps:
a. Press the middle of the expansion card guide in the direction of the SCSI backplane (away from the system
board) and carefully rotate the expansion card guide toward the system board until the card guide unhooks from
the system board (see Figure 4-15 ).
b. Swing the expansion card guide up.
Figure 4-15. Removing the Expansion Card Guide
7. To remove the ERA/O card from its connector on the system board, unfasten each of the support posts from the card.
NOTICE: Do not attempt to disconnect the ERA/O card from the connector on the system board until you have
unfastened the card from each of the four support posts.
a. Compress the clasp at the top of the support post while carefully lifting up on the corner of the card to unseat
the post (see Figure 4-16 ).
b. Repeat step a for each support post.
8. Lift the ERA/O card straight up and out of the chassis.
9. If you are not installing a replacement ERA/O card at this time, disconnect the network cable from the 10-Mbps server
management Ethernet connector on the system back panel.
Figure 4-16. Removing the ERA/O Card