Owners Manual

Installing a cooling fan on page 83
Installing a memory riser on page 74
Installing a hot swappable hard drive carrier on page 93
Installing the optional front bezel on page 62
After working inside your system on page 61
SAS expander daughter card
The systems storage uses SAS expander daughter card to facilitate:
●
Transition of SAS technology from 6 Gbps to 12 Gbps
● Maximize the hard disk drive space
● Provide the configuration flexibility and cabling and signalling issues of the system
The daughter card uses LSI expander chips that support:
● Up to 12 Gbps SAS
● Up to 6 Gbps SAS and SATA
● Serial SCSI Protocol (SSP)
● Spanning-Tree Protocol (STP)
● Simple Management Protocol (SMP) and their communication with the RAID controllers.
NOTE: The SAS expander daughter card tray supports up to two daughter cards (depending on the system configuration).
Removing the SAS expander daughter 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. Follow the safety guidelines listed in the Safety instructions section.
2. Follow the procedure listed in the Before working inside your system section.
3. Disconnect the SAS cables connected to the SAS expander daughter card and hard drive backplane.
1. Push the release tabs up to release the SAS expander daughter card.
The SAS expander daughter card slides out disengaging itself from the backplane slots, towards the front of the system.
2. Pull the SAS expander daughter card out of the system.
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Installing and removing system components