Dell XPS 730 H2C (Late 2008) Manual de usuario descargar pdf (Pagina 15)

Replacing the Liquid Cooling Heat Sink Assembly

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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. Observe the following cautions when working with the liquid cooling assembly.

l The liquid cooling assembly is not user serviceable or upgradeable. All required service should be done by qualified service personnel only.

l The liquid cooling assembly in your system contains a non-refillable coolant. In the event of a coolant leak, shut down your system immediately.

Unplug your system from the power outlet and contact Dell Technical Support.

l In the event of skin contact with the coolant, wash your skin with soap and water. Seek medical attention if irritation develops.

l In the event of eye contact with the coolant, rinse your eyes immediately with water, with your eyelids open, for 15 minutes. Seek medical

attention if irritation persists.

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4. Disconnect the liquid cooling cable from the H2C connector on the Master Control Board (see Master Control Board).

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5. Loosen the screws on the liquid cooling assembly, then lift the assembly out of the computer and set it aside.

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6. To install the liquid cooling heat sink assembly, apply thermal grease to the top of the processor as needed.

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7. Align the screw holes on the liquid cooling assembly with the holes on the base of the computer, then tighten the six screws to secure the assembly.

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8. Connect the liquid cooling cable to the H2C connector on the Master Control Board (see Master Control Board).

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9. Close the computer cover (see Replacing the Computer Cover).

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10. Connectyourcomputeranddevicestoelectricaloutlets,andturnthemon.

WARNING: The liquid cooling assembly is responsible for cooling the system board chipset in addition to the CPU. If the liquid cooling assembly is

replaced with an assembly other than the original, a cooling solution must be installed to avoid overheating the chipset. Failure to install a cooling

solution, either third- party or Dell provided, may result in damage to your system and render the system inoperable.

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: The processor heat sink is attached to the liquid cooling assembly. When you remove the liquid cooling assembly, lay it upside down or

on its side to avoid damaging the heatsink thermal interface.

liquid cooling assembly

captive screws

CAUTION: Ensure that adequate thermal grease is applied to the top of the processor. Thermal grease is critical for ensuring adequate thermal

bonding, which is a requirement for optimal processor operation.

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Dell XPS 730 H2C (Late 2008) Manual de usuario Pagina 15

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