Troubleshooting Your System 1239 If you have a SAS RAID controller daughter card, ensure that the following RAID components areproperly installed and connected:• Memory module• Battery10 Verify that the cable connections between the hard drive(s) and the SAS controller card or SAS RAIDcontroller daughter card are correct. See Figure 3-13 (SAS controller card) or Figure 3-14 (SAS RAIDcontroller daughter card).11 Verify that the SAS or SATA cables are securely seated in their connectors.12 Verify that the hard drive LED activity indicator cable is correctly installed. See Figure 3-13 (SAScontroller card) or Figure 3-14 (SAS RAID controller daughter card).13 Close the system. See "Closing the System" on page 48.14 Reconnect the system to its electrical outlet, and turn on the system and attached peripherals. If theproblem persists, proceed as follows:• If you have a SAS controller card, see "Getting Help" on page 137.• If you have a SAS RAID controller daughter card, replace the SAS RAID daughter card battery. See"Replacing the SAS RAID Controller Daughter Card Battery" on page 95. If replacing the batterydoes not solve the problem, see "Getting Help" on page 137.Troubleshooting Expansion CardsNOTE: When troubleshooting an expansion card, see the documentation for your operating system and theexpansion card.Problem• Error message indicates a problem with an expansion card.• Expansion card performs incorrectly or not at all.ActionCAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by yourwarranty. Read and follow the safety instructions that came with the product.1 Run the appropriate online diagnostic test. See "Using Server Administrator Diagnostics" on page 127.2 Open or remove the bezel. See "Removing the Bezel" on page 46.3 Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.4 Open the system. See "Opening the System" on page 48.5 Ensure that each expansion card is firmly seated in its connector. See "Installing an Expansion Card"on page 57.book.book Page 123 Tuesday, September 1, 2009 4:19 PM