Dell PowerEdge R630 Owner's Manual page 155

4. Pull the backplane away from the system until the securing slots on the backplane are free from the
tabs on the chassis.
Figure 80. Removing the 2.5-inch (x8) hard drive backplane
1. backplane signal cable
3. SAS A cable
5. SAS B cable
2. backplane signal cable
4. release tabs (2)
6. backplane
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