Figure 21. Replacing the NVRAM Backup Battery
1. positive side of battery 2. negative side of battery connector
Storage controller card/PCIe extender card
Your system includes a dedicated expansion-card slot on the blade system board for a storage controller card or a PCIe
extender card that provides the integrated storage subsystem for your system’s hard drives. The storage controller card
supports SAS and SATA hard drives. The PCIe extender card supports PCIe SSDs.
NOTE: The storage controller card/PCIe extender card is located underneath the hard-drive bays.

Removing The PCIe Extender Card/Storage Controller Card

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. Remove the blade from the enclosure.
2. Open the blade.
3. Remove the system board and place it on the work surface.
4. Remove the two screws from the PCIe extender/storage controller card.
5. Pull the PCIe extender/storage controller card straight up and out of the connector.
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