Dell OptiPlex GX1p - Manual (Page 60)

SEC Cartridge/Heat Sink Assembly Removal (Midsize Chassis): Dell™ OptiPlex™ GX1p
To remove the SEC cartridge/heat sink assembly, follow these steps:
1. Remove the system power supply .
2. Locate the SEC cartridge/heat sink assembly.
3. Disconnect the microprocessor fan connector from the 3-pin connector (labeled "FAN") on the system board. The connector is located between the SERIAL 2
connector and the MONITOR connector.
4. Release the 2 securing clips near the base of the heat sink from the metal standoffs.
5. Locate and press inward on the SEC cartridge release latches (located directly on top of the SEC cartridge adjacent to the heat sink assembly) until the latches
click.
6. Lift the SEC cartridge/heat sink assembly out of its guide bracket assembly/connector on the system board.
WARNING: The SEC cartridge/heat sink assembly can get extremely hot during system operations. Be sure that the assembly has had sufficient
time to cool before touching it.
NOTE: When installing the SEC cartridge/heat sink assembly, press outward on the SEC cartridge release latches and then carefully orient the
assembly and press firmly with up to 25 pounds of force to mate the SEC cartridge with its connector. The SEC cartridge release latches will click into
the locked position as the assembly is seated.