IBM 8685 Hardware Maintenance Manual - Page 107

Attention: v Do not use excessive force when pressing the microprocessor into the socket. v Make sure that the microprocessor is oriented and aligned correctly with pin number 1 in the socket before you try to close the lever. d. Carefully close the lever to secure the microprocessor in the socket. 8. If you installed a VRM for microprocessor 3 or 4, reinstall the memory-board assembly: Airflow guide velcro retention tabs Release latch Release latch Memory board Memory-board airflow guide (closed position) Memory-board airflow guide (open position) a. Align the memory-board assembly into the card guides and over the memory-board connector. b. Align the holes on each side of the memory-board bracket over the corresponding alignment pins on the chassis; then, slide the memory-board bracket over the alignment pins. Note: The alignment pins are located near the release latches. The left alignment pin is located between the air baffle and the center internal fans. The right alignment pin is located between the air baffle and the rear internal fans and the adapter slots. c. Close (to the locked position) the release latches to seat the memory board in the connector. Note: To ensure proper server operation, make sure that the memory-board airflow guide is in the closed position. d. Firmly press the memory-board assembly down into the connector until it snaps into place. This secures the memory board in the server. 9. Install a heat sink on the microprocessor: a. Remove the plastic protective cover from the bottom of the heat sink. Do not touch the bottom of the heat sink or set the heat sink down after you remove the plastic cover. Make sure that the square of thermal material is still on the bottom of the heat sink; if not, the heat sink must be replaced. b. Align and place the heat sink on top of the microprocessor in the retention bracket. Press firmly on the heat sink. Chapter 4. Customer replaceable units 97