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Power Systems
SCM
IBM

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Summary of Contents for IBM SCM

  • Page 1 Power Systems...
  • Page 3 Power Systems...
  • Page 4 Power Systems: SCM...
  • Page 5 Remove SCM To remove a SCM, complete the following steps: 1. When the node being serviced is above EIA location 29U, the ladders must be used while installing or removing the rear and front FRUs and cables. 2. Perform the following procedure on ONLY THE FRU(s) BEING SERVICED. The following images are generic and do not represent the literal location being serviced.
  • Page 6 3. Remove all power supply units a. Push tab (A) down of the power supply being serviced and pull it towards the direction of the arrow shown. Keep pulling until the power supply unit slides out from the slot. Power Systems: SCM...
  • Page 7 4. If an S-Biner power cable routing clip is present: While keeping the power cable correctly routed through the S-Biner, unclip all S-Biners from the node being serviced. 5. Unplug line cords a. Unplug the line cords from only the system node being serviced. Remove SCM...
  • Page 8 Pull out the retention pins (B) and rotate the cable management arm up on the pivot point (A) from position (2) to position (1).. The pins will automatically retract into the locking position when the arm is properly located in the up position. 7. Remove all PCI cables Power Systems: SCM...
  • Page 9 Visually confirm that the SMP cable camming mechanism is in the unlocked position and that the black dots are showing through the two holes at the 5 and 11 o'clock positions before pulling on the cable. Remove SCM...
  • Page 10 Grip the pull tab and pull in the direction indicated to remove the SMP cables. 9. Remove all clock card cables a. Make note of the location from which each clock card cable is removed. They must be plugged into the same location when reinstalled. Power Systems: SCM...
  • Page 11 Remove the clock card cables from the system control unit by pushing the clock cable in slightly, then pull the locking tab to release the latch and pull cable out. 10. If present, remove the retention screws (A) from the rear of the system node. Remove SCM...
  • Page 12 The lift tool should be about one foot away from the rack with its platform slightly below the bottom of the system drawer to account for the slight downward flex when the drawer is extended out fully on its slides. Power Systems: SCM...
  • Page 13 Manually push the system forward slightly away from the rack. e. Raise the lift tool to disengage the rear pins. f. Push the sliderails in and then level the tilt table. g. Lower the lift tool to perform the service action at a lower height. Remove SCM...
  • Page 14 14. Remove Top Cover Note: The following steps apply only to the system node being serviced. a. Lift up the cover latch. b. Lift the cover off the system. Power Systems: SCM...
  • Page 15 Press and hold down the button (A) on the Power APSS card to temporarily activate the identify LED(s) on the FRU(s) being serviced. This LED(s) will remain active while the button is pressed. b. The locate button on either Power APSS card may be used. Remove SCM...
  • Page 16 TIM is Dexerials, it is not fixed to the heat sink. In this case, the heat sink can be used regardless of the state of the TIM. In case of a Dexerials TIM, discard it if it's damaged, otherwise, move it with tweezers to the Electrostatic Discharge (ESD) surface. Make sure that the surface is clean. Power Systems: SCM...
  • Page 17 One or more SCMs will need to be removed during this procedure. There are two versions of the SCM removal tools available. The newest version has a "loop" for easier handling. b. Loosen the heat sink actuation screw by turning the nut driver (P/N 46K5039) counterclockwise (A) until the screw becomes loose and moves freely.
  • Page 18 18. If dust or debris is present, use an air bulb to clean by blowing small bursts of air from the center toward the sides of the SCM. Note: Do NOT touch any contact surfaces. 19. Remove the SCM Note: SCM tool (A) (P/N 01AF095) or (B) (P/N 00E8472) may be used to handle the SCM. Power Systems: SCM...
  • Page 19 20. Prepare SCM tool a. Press down on the center button. (A). b. While pressing the button (A), squeeze the tabs (B) together. c. Release the center button (A) while still holding the tabs (B) so that the tabs (B) are held in the locked position.
  • Page 20 21. Prepare for SCM Removal a. Using the SCM tool, align the beveled corner (A) of the tool over the beveled corner of the module. b. Lower the tool over the SCM, ensuring the guide pins (B) are inserted into the alignment holes.
  • Page 21 Place the CP SCM tool over the module while ensuring that the CP SCM tool dowel holes align with the dowel pins on the LGA load frame (B). Also, make sure the (A01) corner of the CP SCM tool lines up with the (A01) label on the load frame.
  • Page 22 Power Systems: SCM...
  • Page 23 2 and skip step 3. If the lid covers two processor sockets, skip step 2 and follow step 3. 2. This step only applies if you are not replacing an existing SCM. If the processor socket has a single processor lid, remove the processor lid.
  • Page 24 Use the processor lid removal tool to lift the processor lid out of the chassis and set the processor lid on a clean surface. 3. This step only applies if you are not replacing an existing SCM. If the processor socket has a dual processor lid, remove the processor lid.
  • Page 25 Once the tape is no longer connected to the planar, lift the lid straight up until it is clear of the processor socket and set the processor lid on a clean surface. 4. Install the SCM Note: SCM tool (A) (P/N 01AF095) or (B) (P/N 00E8472) may be used to handle the SCM. 5. Prepare SCM tool Install SCM...
  • Page 26 Note: This will place the jaws at the bottom of the tool in the open position. 6. Install the SCM Note: Use the following procedure for SCM tool (A) or (B) to remove the SCM from the carrier tray (P/N 00E8477).
  • Page 27 Slowly lift the CP SCM insertion tool and CP SCM module straight up and out of the CP module carrier tray by holding on to the ring if the SCM tool has a ring, otherwise grasp the sides of the tool.
  • Page 28 Release the SCM Note: To prevent the SCM from falling, do not squeeze the two tabs (B) before you place the tool on the socket. n. With the SCM and tool on the SCM socket, press down on the center button (A).
  • Page 29 Using the tweezers, remove the TIM from the carrier strip. In the case of a Hitachi TIM pad, center it onto the SCM with the black side up. In the case of an Indium TIM pad, center it on the SCM with the red stripe facing up.
  • Page 30 9. Install the Heat Sink a. Carefully lower the heat sink over the SCM, ensuring that the two guide pins (B) are inserted into the alignment holes (A) on each side of the heat sink. b. Ensure that the heat sink load arms are engaged.
  • Page 31 10. Secure the Heat Sink a. Upon placing the heat sink on the SCM, ensure that the heat sink load arms on both sides of the heat sink become engaged. b. While holding the heat sink in place, use the nut driver (P/N 46K5039) to tighten the heat sink actuation screw (A).
  • Page 32 Note: Ensure that the rear pair of guide pins will completely engage the rear slide rail slots when the platform is slightly lowered, but before the middle pair starts to engage. k. Release the slide latches and carefully pull the slides outward until the rails are fully extended. Power Systems: SCM...
  • Page 33 Lower the lift tool slightly so that the tilt table is not contacting the system node. b. Slide the front lip of the cover under the chassis edge c. Align and place the cover onto the system node and press the tab in the direction shown until it snaps into place. Install SCM...
  • Page 34 14. Remove ladders and lift tool if used earlier in the procedure. a. If the slide rails of the node being serviced are above EIA location 29U, keep the ladders available as they are required to install rear and front FRUs. b. Move the ladders away. Power Systems: SCM...
  • Page 35 16. Install clock card cables a. Note: The clock flex cables are point to point cables designed for their fixed locations and should not be stretched when installing. Stretching the cable during installation may lead to misplugging and bent pins. Install SCM...
  • Page 36 U3: P1-C9-T1 Cable (Right) c. If you have a two node system configuration, use the diagram and the Two System Nodes to System Control Unit Table below to determine point to point cabling for the clock flex cables. Power Systems: SCM...
  • Page 37 U3: P1-C9-T4 Cable (Right) d. If you have a three node system configuration, use the diagram and the Three System Node to System Control Unit Table below to determine point to point cabling for the clock flex cables. Install SCM...
  • Page 38 U3: P1-C9-T3 Cable (Right) e. If you have a four node system configuration, use the diagram and the Four System Node to System Control Unit Table below to determine point to point cabling for the clock flex cables. Power Systems: SCM...
  • Page 39 To: (U-Loc) U2: P1-T7 Short Clock Flex U3: P1-C8-T2 Cable (Left) U2: P1-T8 Short Clock Flex U3: P1-C9-T1 Cable (Right) U4: P1-T7 Long Clock Flex U3: P1-C8-T3 Cable (Left) U4: P1-T8 Long Clock Flex U3: P1-C9-T4 Cable (Right) Install SCM...
  • Page 40 Push the cables into the slots on the system control unit. The connectors are keyed and can only be seated in one way. g. Push the cables into the slots on the system node. The connectors are keyed and can only be seated in one way. Power Systems: SCM...
  • Page 41 Install the SMP cables into the same location from which they were removed. b. If you have a two node system configuration, use the diagram and the Two Node Configuration SMP cabling table below to determine point-to-point cabling for SMP cables. Install SCM...
  • Page 42 SMP cabling table below to determine point-to-point cabling for SMP cables. Table 6. Three Node Configuration SMP Cabling Cable Number Cable Type From: (U-Loc) To: (U-Loc) 1.5 m (4.9 ft) SMP Cable U2: P1-T3 U5: P1-T1 1.25 m (4.1 ft) SMP Cable U4: P1-T1 U5: P1-T3 Power Systems: SCM...
  • Page 43 If you have a four node system configuration, you must use both diagrams with the Four Node Configuration SMP short cabling and the Four Node Configuration SMP long cabling tables below to determine point-to-point cabling for SMP cables. Install SCM...
  • Page 44 1.25 m (4.1 ft) SMP Cable U1: P1-T3 U2: P1-T1 1.25 m (4.1 ft) SMP Cable U4: P1-T1 U5: P1-T3 1.25 m (4.1 ft) SMP Cable U2: P1-T2 U4: P1-T2 1.25 m (4.1 ft) SMP Cable U2: P1-T5 U4: P1-T5 Power Systems: SCM...
  • Page 45 1.25 m (4.1 ft) SMP Cable U1: P1-T4 U2: P1-T6 1.25 m (4.1 ft) SMP Cable U4: P1-T6 U5: P1-T4 Note: U2 is System Node 1, U4 is System Node 2, U5 is System Node 3, and U1 is System Node 4 Install SCM...
  • Page 46 Visually confirm that the SMP cable camming mechanism is in the locked position and that the white dots are showing through the two holes at the 5 and 11 o'clock positions. If they are still black, it is not latched. Power Systems: SCM...
  • Page 47 19. Move cable management arm down a. Pull out the retention pins (B) and rotate the cable management arm down on the pivot point (A) from the position (1) to (2). The pins will automatically retract into the locking position when the Install SCM...
  • Page 48 Plug the line cords into the node being serviced. 21. If an S-Biner power cable routing clip was previously removed: While keeping the power cable correctly routed through the S-Biner, clip all S-Biners to the node being serviced. Power Systems: SCM...
  • Page 49 Align the power supply units with the slots and push them all the way in. b. Pull the latches down on each power supply and ensure the pins on the latch go into the grooves in the chassis. c. Push the latches up to lock in place. 23. Install power supply cables Install SCM...
  • Page 50 If removed earlier, install the 4 retention screws (A) at the front of the system. b. Install the front bezel on the system node being serviced and all system nodes which share the same system control unit with the system node being serviced.(A). Power Systems: SCM...
  • Page 51 If performing this procedure from a management console, close this web page to continue with the procedure. Install SCM...
  • Page 52 Power Systems: SCM...
  • Page 54 IBM® Printed in USA...