Xserve (Late 2006/Early 2008) Rear ID Tab Replacement Instructions Follow the instructions in this document carefully. Failure to follow these instructions could damage your equipment and void its warranty. Online instructions are available at http://www.apple.com/support/diy/. Working Safely Inside the Xserve Always touch the Xserve enclosure to discharge static electricity before you touch any components inside the Xserve.
Removing the Xserve from a Rack 1. Alert users that the server will be unavailable for a period of time. 2. Shut down the Xserve (see the Xserve User’s Guide for help) and then wait to let the Xserve internal components cool. Warning: Always shut down the Xserve before opening it to avoid damaging its internal components or the components you want to install or remove. Don’t open the Xserve or try to install or remove items inside while it is turned on.
Opening the Xserve Loosen the thumbscrews at the back of the top cover and slide the cover back and up to remove it. If you have difficulty removing the cover, check the enclosure lock on the front panel. Warning: Even after you shut down the Xserve, its internal components can be very hot. Let it cool before you open it. Important: To minimize the possibility of damage to Xserve components due to static discharge, wear an antistatic wrist strap, if possible, while you work inside the Xserve.
PCI Riser Cards and Expansion Cards 1. Loosen the two captive screws that secure the riser bracket in slot 1 to the back panel. 2. Carefully pull up on the bracket and riser, with the expansion card still attached, to disconnect the riser from the logic board. Captive screws 3. Tilt the expansion card up so that its port clears the enclosure, and remove the card from the Xserve. 4. Repeat for the riser card in slot 2.
Airflow Duct 1. Loosen the five Phillips screws that fasten the airflow duct to the fan array. 2. Pull up on either side of the airflow duct, and lift it straight up and out of the Xserve. Caution: Try not to completely remove the screws from the airflow duct. Tiny black rubber washers hold these screws captive on the underside of the airflow duct. If the screws are completely removed, these rubber washers can easily fall into the enclosure and become lost.
Fan Array 1. Loosen the two thumbscrews that secure the fan array to the enclosure. Note: The thumbscrews are captive; you cannot remove them. 2. Lift the fan array to remove it from the Xserve. Note: You may need to move the front panel cable slightly out of the way of the fan array power connector during removal or replacement. Be careful not to pinch the front panel board cable between the fan array and any other surface inside.
Note: You may encounter some resistance around the fan array power connector during removal. If so, carefully rotate the fan array as shown to disconnect it from the power distribution board below, and then lift the fan array out of the computer. Backplane-to-Logic Board I/O Cable 1. Disconnect the backplane-to-logic board cable from the logic board.
2. Disconnect the backplane-to-logic board cable from the drive interconnect backplane and remove the cable from the Xserve. Processor Heat Sinks Note: Server configurations with a single processor have a regular heat sink and a blank heat sink installed. The blank heat sink is silver colored (as shown below) and should not be removed except when replacing a logic board.
1. Loosen the four screws securing the heat sink in the order indicated below. If two coppercolored heat sinks are installed, you must remove both heat sinks.
Caution: Whenever you handle a heat sink, handle it from the slotted sides, not the smooth sides. Grasping the smooth sides of the heat sink can compress its ribs causing permanent damage.
2. Caution: Each heat sink is connected to the logic board by a small 2-pin thermal sensor cable. Lifting the heat sink too quickly can damage the cable or connector. Because of the tight thermal bond between the processor and heat sink, be especially cautious to initially lift the heat sink no more than one centimeter (1 cm) off the processor. Do not pull on the cable as you lift each heat sink enough to disconnect the cable from the logic board.
Logic Board 1. Study the next four images for properly moving the logic board before continuing with the steps. Caution: When removing and installing the logic board, be careful not to flex the logic board, which could damage the board or its components. To best distribute the weight of the logic board and minimize flexing, grasp the logic board only at the side and the end of the expansion card riser, as shown.
Caution: When transferring the logic board, be careful not to flex the logic board, which could damage the board or its components. To best distribute the weight of the logic board and minimize flexing, hold the logic board at the long sides near the center, as shown.
2. Disconnect the optical drive cable from the logic board. 3. Release the two locking levers on the front panel board cable connector and disconnect the cable from the logic board. Move the cable aside so you have access to the logic board. 4. Loosen the single thumbscrew on the power distribution board and slide the board away from and out of the connector on the logic board.
5. Following the order shown, loosen the nine thumbscrews that secure the logic board to the enclosure. Note: The thumbscrews are captive; you cannot remove them. 6. Grasping the logic board only by its expansion card riser and edge as shown, move it forward and up slightly to release it from the rear port openings in the enclosure. 7. Remove it from the Xserve.
Rear ID Tab Note: The rear ID tab protrudes from the rear panel through a slot. 1. Locate the rear ID tab. Once the logic board has been removed from the enclosure, the ID tab is visible on the inside bottom of the enclosure.
2. Gently grasp the ID tab and pull up on it to disengage it from the channel that it slides along in the enclosure. 3. Pull the ID tab through the slot in the rear panel to remove it.
Installing the Replacement Rear ID Tab Insert the replacement rear ID tab through its slot in the rear panel. Make sure the tab engages with the channel that it slides along in the enclosure. Replacing the Logic Board Important: When replacing the logic board, make sure the board’s rear port connectors fit through the appropriate openings in the Xserve’s back panel. Take special care to fit the rear ID button through its opening. Don’t bend or flex the logic board. 1.
2. Following the order shown, use a screwdriver to tighten, but not overtighten, the nine thumbscrews that secure the logic board to the enclosure. 3. Slide the power distribution board back into place and tighten the thumbscrew. Note: Make sure the edge connector on the power distribution board goes completely into the connector on the logic board. If the power distribution board doesn’t slide easily, make sure the thumbscrew is popped up so it doesn’t catch on the mounting post beneath the board. 4.
3. Rotate the top of the holder to the open position. 4. Carefully lift the processor out of the holder. Important: When removing or installing a processor, always hold the processor by three corners. Be extremely careful not to touch the gold pins on the bottom of the processor, as this type of connector is very sensitive to contamination. Also be careful not to touch the gold pins in the processor socket on the logic board.
5. Using the syringe of thermal grease, apply the entire contents of the syringe (approximately 4.5 cc) to the top surface of the processor. Important: Be sure not to get grease anywhere on the processor other than the very top, flat surface that directly contacts the heat sink. 6. Use the edge of the package that the alcohol wipe came in as a spatula to spread the thermal grease evenly over the entire top surface of the processor.
7. Holding the processor by three corners only, keep the processor level as you place it into its holder on the logic board, being careful not to get any thermal grease on the contacts of either the processor or its socket holder.
Note: When installing the processor on the logic board, align the processor notch with the tab on the processor holder, as shown. Then lower the processor straight down onto the socket. 8. Rotate the top of the holder to the closed position. 9. Engage the latch on the metal processor holder. Repeat the steps above for the second processor. 10. Holding the heat sink by the slotted sides in one hand, reconnect the 2-pin thermal sensor cable for the heat sink to the logic board.
11. Carefully seat the heat sink over the processor, aligning the four screws with the holes in the logic board. 12. Tighten the four captive Phillips mounting screws for the heat sink in the order indicated below. Do not over-tighten the screws. If you have a torque driver, tighten the screws to 8 inch-pounds; otherwise, try to tighten the screws with equal pressure. Replacing the Backplane-to-Logic Board I/O Cable 1. Fold the replacement cable to a 90-degree angle along its creases.
2. Connect the cable to the logic board first. Then press the adhesive section of the cable onto the enclosure before connecting the other end of the cable to the backplane. Caution: Make sure the cable is fully seated. Replacing the Fan Array 1. Align the power connector on the fan array with its connector on the power distribution board and lower the array into the enclosure. Push down on the fan array power connector to make sure it is fully seated. 2. Tighten the screws at the ends of the array.
Replacing the Airflow Duct 1. Lower the airflow duct into position on the logic board. Note: When installing the airflow duct, be sure to route both the front panel board cable and the backplane-to-logic board I/O cable inside the channel under the left side of the duct. 2. Ensure the airflow duct fits flush all over, and does not protrude above the level of the enclosure. Note: Be careful when working with any black foam pieces that are part of the airflow duct or the logic board. 3.
Replacing the PCI Riser Cards and Expansion Cards 1. Align the riser with slot 1 on the logic board and press to seat the card. 2. Tighten the captive screws that secure the riser bracket to the back panel. 3. Repeat for the riser in slot 2. Replacing the Power Supplies 1. Slide the first power supply all the way into the bay, and then press the handle to seat the power supply and lock it in place. Slide the power supply in and press the handle to seat it. 2.
Warning: Never turn on the server unless all of its internal and external parts are in place and it is closed. Operating the server when it is open or missing parts can damage it or cause injury. Apple Inc. © 2006, 2008 Apple Inc. All rights reserved. Under the copyright laws, this document may not be copied, in whole or in part, without the written consent of Apple. Every effort has been made to ensure that the information in this document is accurate.
