12. Reconnect the power cables to the connectors on the system board and securethe power cables with any cable clips on the chassis.13. Reconnect the power cable from the RAID battery to the ServeRAID adapter,if you have removed it.14. Reinstall the fan assembly (see “Installing the fan assembly” on page 105).15. Reinstall the air baffle (see “Replacing the air baffle” on page 336).If you have other devices to install or remove, do so now. Otherwise, go to“Completing the installation” on page 104.Removing a microprocessor and heat sinkAttention:v Be extremely careful, the pins on the socket are fragile. Any damage to the pinsmay require replacing the system board.v Do not allow the thermal grease on the microprocessor and heat sink to come incontact with anything.v Removing the heat sink from the microprocessor destroys the even distributionof the thermal grease and requires replacing the thermal grease.v Do not touch the microprocessor contacts; handle the microprocessor by theedges only. Contaminants on the microprocessor contacts, such as oil from yourskin, can cause connection failures between the contacts and the socket.v Use the microprocessor installation tool that came with the new microprocessorto remove and install the microprocessor. Failure to use the microprocessor toolmay cause damage to the pins on the socket. Any damage to the pins mayrequire replacing the system board.To remove a microprocessor and heat sink, complete the following steps:1. Read the safety information that begins on page Safety and “Installationguidelines” on page 36.2. Turn off the server (see “Turning off the server” on page 24) and all attachedperipheral devices. Disconnect all power cords; then, disconnect all externalcables as necessary to replace the device.3. Remove the left side cover (see “Removing the left-side cover” on page 39).4. Disconnect any cables that impede access to the heat sink and microprocessor.5. Remove the air baffle (see “Removing the air baffle” on page 41).6. Loosen the screws on the heat sink with a screwdriver by the order as thelabel showed. If possible, each screw should be rotated two full rotations at atime.7. Gently pull the heat sink off the microprocessor. Lift the heat sink out of theserver. If the heat sink sticks to the microprocessor, slightly twist the heat sinkback and forth to break the seal. After removal, place the heat sink on its sideon a clean, flat surface.Note: Removing the heat sink from the microprocessor destroys the evendistribution of the thermal grease and requires replacing the thermal grease.416 System x3300 M4 Type 7382: Installation and Service Guide
