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Dell PowerEdge R7525 Installation and Service Manual

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Removing the liquid cooling heat sink modules

Prerequisites

  1. Follow the safety guidelines listed in the Safety instructions.
  2. Follow the procedure listed in the Before working inside your system.
  3. If installed, remove the air shroud.
WARNING: The liquid cooling heat sink modules and processor are too hot to touch for some time after the system has been powered off. Allow the heat sink and processor to cool down before handling them.

Steps

  1. Using a Phillips #1 screw driver, loosen the captive screw on the liquid cooling ring holder.
  2. Lift up the liquid cooling ring holder to loosen the liquid cooling tubes.
  3. Disconnect the liquid cooling detection cable from the Rio card connector.
    NOTE:The numbers on the image do not depict the exact steps. The numbers are for representation of sequence.
  4. Remove the liquid cooling tubes end point from the rear exit of the I/O function panel.
  5. Slightly lift up the liquid cooling tubes surrounding the DIMM slots.
  6. Using a Torx #T20 screwdriver, loosen the captive screws in the order that is mentioned on the liquid cooling heat sink modules:
    1. Partially loosen the captive screws 1 and 2 (approximately 3 turns).
    2. Partially loosen the captive screws 3 and 4 (approximately 3 turns).
    3. Loosen the captive screws 1 and 2 completely.
    4. Loosen the captive screws 3 and 4 completely.
    NOTE:The captive screw numbers are marked on the liquid cooling heat sink modules.
  7. Lift the heat sink from the system.
    Figure 1. Removing the liquid cooling heat sink modules
    This image shows the removal of the liquid cooling heat sink modules

Next steps

  1. If you are uninstalling a faulty heat sink, replace the liquid cooling heat sink modules, else remove the processor.

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