Dell PowerEdge 6850 - Manual (Page 23)

SAS Information Update
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3 Connect the data interface and control panel cables to the back of the interposer board.
See Figure 1-11.
4 Connect the power cable to the top of the interposer board.
5 Connect the SAS and backplane power cables to the back of the SAS backplane. See Figure 1-8.
Secure the SAS cable(s) in the clip that is attached to the fan-3 air guard. See Figure 1-8.
6 Install the processor filler blanks or heat sinks on processors 2 and 4. See "Installing a Processor"
in the Installation and Troubleshooting Guide.
7 Install the cooling shroud. See "Installing the Cooling Shroud" the Installation and Troubleshooting
Guide.
8 Close the system. See "Closing the System" in the Installation and Troubleshooting Guide.
9 Reconnect the system to its electrical outlet and turn the system on, including any attached
peripherals.
Troubleshooting
The following sections provide guidelines for troubleshooting problems with SAS hard drives or the SAS
controller card.
Troubleshooting a SAS Hard Drive
Problem
• Device driver error.
• One or more hard drives not recognized by the system.
Action
CAUTION:
Any installation that requires removal of the system cover is intended solely to be performed by
trained service technicians. Before performing any procedure, see your Product Information Guide for complete
information about safety precautions, working inside the computer and protecting against electrostatic
discharge.
NOTICE:
This troubleshooting procedure can destroy data stored on the hard drive. Before you proceed, back up
all files on the hard drive.
1 Run the appropriate online diagnostics test. See "Using Server Administrator Diagnostics" in the
Installation and Troubleshooting Guide.
Depending on the results of the diagnostics test, proceed as needed through the following steps.
2 Remove the bezel. See "Opening the System" in the Installation and Troubleshooting Guide.
3 If you are experiencing problems with multiple hard drives, skip to step 9. For a problem with a single
hard drive, continue to the next step.