Dell R820 Installing The Hard-Drive Backplane, Cable retention bracket Power connector

1.	SAS B connector	4.	signal connector
2.	SAS A connector	5.	power connector

3.power connector

Figure 62. Cabling Diagram—2.5 Inch (x16) Hard-Drive Backplane
1.	cable securing guide	7.	SAS B connector
2.	PERC card	8.	signal connector
3.	system board	9.	hard drive backplane
4.	cable retention bracket	10.	power connector
5.	power connector	11.	cable retention bracket

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.

1.Align the slots on the hard-drive backplane with the hooks on the chassis.

2.Slide the hard-drive backplane until the release tab(s) snaps into place.

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