Dell PowerVault NX400 Owner's Manual page 72

CAUTION: To prevent damage to the drives and backplane, you must remove the hard drives from the system
before removing the backplane.
CAUTION: You must note the number of each hard drive and temporarily label them before removal so that
you can replace them in the same locations.
4. Remove all hard drives.
5. Disconnect the SAS/SATA data, signal, and power cable(s) from the backplane.
6. Press the release tabs and slide the backplane upward.
Figure 34. Front View of the Four Hard-Drive Backplane
1. hard-drive connectors (4)
2. SAS connector
3. power connector for optical drive
Figure 35. Rear View of the Four Hard-Drive Backplane
1. hard-drive backplane
2. backplane signal connector
3. backplane power connector
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