Service Manual

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 Replacing the System Board

Dell™XPS™625ServiceManual

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1. Follow the procedures in Before You Begin.

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2. Remove the computer cover (see Replacing the Computer Cover).

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3. Remove the processor heat sink (see Replacing the Processor Heat Sink).

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4. Remove all the expansion cards (see Removing PCI and PCI Express Cards).

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5. Remove any additional components that may restrict access to the system board.

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6. Disconnect all cables from the system board.

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7. Remove the 10 screws that secure the system board to the chassis.

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8. Carefully, lift the system board out of the computer.

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9. Transfer components from the existing system board to the replacement system board, if applicable.

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10. Orient the system board by aligning the screw holes on the system board with the screw holes on the chassis.

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11. Replace the 10 screws to secure the system board to the chassis.

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12. Replace the processor heatsink (see Replacing the Processor Heat Sink).

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13. Replace any expansion cards that you removed (see Installing PCI and PCI Express Cards).

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14. Replace any additional components that you removed from the system board.

WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best

practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance

WARNING: The processor heat sink can get very hot during normal operation. Be sure that the heat sink has had sufficient time to cool before you

touch it.

CAUTION: Carefully note the routing and location of each cable before you disconnect it, so that you are sure to re-route cables correctly. An

incorrectly routed or a disconnected cable could lead to computer problems.

CAUTION: If you are replacing the system board, visually compare the replacement system board to the existing system board to make sure that

you have the correct part.

screws (10)