Dell PowerEdge 2970 Information Update page 17

Figure 1-3. SAS/SATA Backplane Board Removal
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1 drive carrier
3 SAS-backplane board release pin
4 If present, disconnect the optical drive power cable from the SAS/SATA
backplane board. See Figure 1-4 for the location of the optical drive power
connector.
5 Disconnect the SAS cable(s) from the backplane connectors.
See Figure 1-4 for the location of the SAS cable connectors.
6 If an optical drive is installed, disconnect the data cable from the back
of the optical drive.
7 If present, remove the storage controller daughter card. See "Removing
a SAS Controller Daughter Card" in your Hardware Owner's Manual.
2 SAS backplane board
Information Update
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