Figure 42. Cabling Diagram — 3.5 inch (x12) SAS/SATA Backplane
1. system board 2. LSI 9207 adapter
3. SAS cable retainer 4. front backplane SAS cable B
5. front x12 HDD or SSD backplane 6. front backplane SAS cable A
Installing the front HDD or SSD 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. Use the hooks at the base of the chassis as guides to align the HDD or SSD backplane.
2. Slide down the HDD or SSD backplane until the release tabs snap into place.
3. Connect the SAS/SATA/SSD data, signal, and power cables to the backplane.
4. Replace the cooling fan assembly.
5. Replace the cooling shroud.
6. Install the HDDs or SSDs in their original locations.
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