Dell Dimension XPS T___ User Manual download pdf (Page 26)

1. If possible, enter the system setup program and print the system setup screens by pressing the <Print Screen> key before you turn off the

computer because you will have to restore the configuration information after the system board is replaced.

2. Disconnect any cables attached to the input/output (I/O) panel on the back of the computer.

3. Disconnect any cables connected to expansion cards, and remove these expansion cards.

4. Disconnect all internal cables from the system board.

5. RemovetheSECC2packageandheatsinkassembly.

6. Using a #2 Phillips-head screwdriver, loosen the four captive nuts securing the guide bracket assembly for the SECC2 package to the

system board.

7. Remove the assembly from the four threaded posts as shown in the following figure.



8. Remove the system-board mounting screw from the back of the computer, as shown in the following figure.

3.5-inch diskette drive

Secondary hard-disk drive bracket

System board

I/O gasket

NOTE: The four nuts are captive and are retained in the assembly when loosened. The screws are mounted on the system board.

Captive nuts (4)

Threaded posts (4)

Key

Guide bracket assembly

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Dell Dimension XPS T___ User Manual Page 26