Dell PowerEdge 1850 - Manual (Page 4)

7. If applicable, disconnect the diskette drive cable from the diskette drive connector on the SCSI backplane. See Figure 1 -1 .
8. If applicable, disconnect the optical drive data cable from the optical drive connector on the SCSI backplane. See Figure 1 -1 .
9. Disconnect the control panel cable from its connector on the SCSI backplane. See Figure 1 -1 .
10. Remove the SCSI drive(s) from the system.
11. Remove the SCSI backplane:
a. Lift up on the seven blue plastic rivets securing the backplane. See Figure 1 -1 .
b. To disconnect the SCSI backplane from the system board, grasp the metal handle on the end of the backplane and slowly lift the backplane
straight up from the system board. See Figure 1 -1 .
12. Disconnect the SCSI data cable from the underside of the backplane.
Installing a SCSI Backplane Board
1. Connect the SCSI data cable to the new backplane.
2. Lift up on each of the seven plastic rivets on the new backplane to loosen them, prior to installing the backplane.
3. Align the backplane with the backplane interface connector on the system board.
4. While holding the SCSI data cable between the edge of the chassis and the end of the backplane, press down on the end of the backplane with the
handle until the backplane connector is fully seated.
5. Press firmly on the seven plastic rivets to secure the backplane.
6. Connect the control panel cable to the control panel connector on the SCSI backplane. See Figure 1 -1 .
7. If applicable, connect the diskette drive cable to the diskette drive connector on the SCSI backplane. See Figure 1 -1 .
8. If applicable, connect the optical drive data cable to the optical drive connector on the SCSI backplane. See Figure 1 -1 .
9. Reconnect the SCSI data cable to the riser card or RAID controller card.
10. If you removed the riser card or riser card insulator, reinstall them now. See "Installing the Riser Card" in the Installation and Troubleshooting Guide.
When installing the riser card, guide the SCSI cable between the edge of the riser card and the edge of the chassis to avoid interfering with the cover.
11. Reinstall the SCSI hard drives in their original locations.
NOTICE: Before removing the backplane, you must remove the SCSI drives from the system to avoid damage to the drives or backplane.
NOTICE: Temporarily label each drive before removing them, so you can replace them in the same locations.
NOTE: When the backplane is fully seated, the top edge of the backplane circuit board will be below the arrows on the chassis brace next to the
back edge of the backplane.