Installation and Troubleshooting Guide

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1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
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2. Open the system. See "Opening the System" in "Troubleshooting Your System."
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3. Remove all SCSI hard drives. See "Removing a SCSI Hard Drive" in "Installing Drives."
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4. Remove the optical drive/diskette drive carrier.
To remove the drive carrier, pull the release latch forward, then slide the carrier out of the chassis. See Figure7-3.
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5. Remove the cooling shroud. See "Removing the Cooling Shroud" in "Installing System Components."
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6. Remove the heat sinks/processor filler blanks. See "Removing a Processor" in "Installing System Components."
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7. Disconnect the SCSI, data interface, and power cables from the front of the SCSI backplane.
For improved access, remove the SCSI cable(s) from the clip that is attached to the fan-3 air guard and move the cable(s) away from the backplane; lift
up the data interface cable clip from the fan-4 air guard and move the cable away from the backplane. See FigureC-3.
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8. Remove the memory risers cards/memory filler blanks. Because the system is turned off and the memory riser cards have no power, see "Removing and
Installing a Non–Hot-Pluggable Memory Riser Card" in "Installing System Components."
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9. Remove the Fibre Channel module card, if applicable. See "Removing a Fibre Channel Module Card" in "Installing System Components."
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10. Remove all expansion cards. See "Removing an Expansion Card" in "Installing System Components."
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11. Remove the expansion-card insulator:
a. Press in the two release tabs and lift up the front of the expansion-card insulator. See FigureC-5.
b. Slide the expansion-card insulator toward the front of the chassis.
c. Lift the expansion-card insulator out of the chassis.
Figure C-5. Removing and Installing the Expansion-Card Insulator
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.
NOTICE: To prevent damage to the drives and backplane, you must remove the SCSI drives and diskette/optical drive carrier from the system before
removing the backplane. You must note the number of each hard drive and temporarily label them before removal so that you can replace them in the
same locations.