Dell OptiPlex 7050 Micro, Owner'S Manual

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c. system fan
3. To remove the heat sink:
a. Loosen the M3 screws that secure the heat sink to the computer [1].
NOTE: The 35 W CPU has four screws and the 65 W CPU has three screws.
b. Lift the heat sink away from the computer [2].
Installing heat sink
Steps
1. Place the heat sink on the processor.
2. Tighten the M3 screws to secure the heat sink to the system board.
3. Install the:
a. system fan
b. 2.5–inch drive assembly
c. cover
4. Follow the procedure in After working inside your computer .
Processor
Removing processor
Steps
1. Follow the procedure in Before Working Inside Your Computer .
2. Remove the:
22 Disassembly and reassembly