cVerify that the cable connections between SAS backplane(s) and the SAS daughter card are correct. See "Installing a SAS Controller Daughter Card" on page 70.

dVerify that the SAS cables are securely seated in their connectors.

eVerify that the power connectors on the SAS backplane(s) are securely seated in their connectors.

fClose the system. See "Closing the System" on page 55.

gReconnect the system to the electrical outlet, and turn on the system and attached peripherals. If the problem persists, see "Getting Help" on page 147.

Troubleshooting a SAS or SAS RAID Controller Daughter Card

NOTE: When troubleshooting a SAS or SAS RAID controller daughter card, also see the documentation for your operating system and the controller daughter card.

Problem

Error message indicates a problem with the SAS or SAS RAID controller daughter card.

SAS or SAS RAID controller daughter card performs incorrectly or not at all.

Action

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

1Run the appropriate online diagnostic test. See "Using Server Administrator Diagnostics" on page 131.

2Enter the System Setup program and ensure that the SAS or SAS RAID controller daughter card is enabled. See "Using the System Setup Program" on page 37.

3Restart the system and press the applicable key sequence to enter the configuration utility program:

<Ctrl><C> for a SAS controller

<Ctrl><R> for a SAS RAID controller

See the controller's documentation for information about configuration settings.

4Check the configuration settings, make any necessary corrections, and restart the system. If the problem is not resolved, continue to the next step.

5Remove the bezel. See "Removing the Front Bezel" on page 53.

6Turn off the system and attached peripherals, and disconnect the system from its electrical outlet.

7Open the system. See "Opening and Closing the System" on page 54.

8Ensure that the controller card is firmly seated in its connector. See "SAS Controller Daughter Card" on page 69.

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Troubleshooting Your System

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Dell 2950 owner manual Troubleshooting a SAS or SAS RAID Controller Daughter Card