Installing The Hard-Drive Backplane - Dell PowerEdge R820 Owner's Manual

1. SAS B connector
2. SAS A connector
3. power connector
4. signal connector
5. power connector
Figure 62. Cabling Diagram—2.5 Inch (x16) Hard-Drive Backplane
1. cable securing guide
2. PERC card
3. system board
4. cable retention bracket
5. power connector
6. SAS A connector

Installing The Hard-Drive Backplane

CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
7. SAS B connector
8. signal connector
9. hard drive backplane
10. power connector
11. cable retention bracket
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