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16.

Inspect the Thermal Interface Material (TIM)

a.

Inspect the TIM on the heat sink for visible signs of damage. It must be flat and centered on the
heat sink WITH NO FOLDS. Small wrinkles are acceptable.

b.

If the TIM is not flat, is not centered, or has folds in it, it is considered damaged.

Note:

If the TIM is Indium or Hitachi, it is fixed to the heat sink. In this case, if the TIM is

damaged, the entire heat sink module of the failing system processor module must be replaced. If
the 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.

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Power Systems: SCM

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Summary of Contents for SCM

Page 1: ...Power Systems SCM IBM ...

Page 2: ......

Page 3: ...Power Systems SCM IBM ...

Page 4: ...ii Power Systems SCM ...

Page 5: ... 41V1059 is required for this procedure The torque tool was initially shipped with the system 5 CAUTION If the system slide rails are installed above EIA location 29U two Support Services Representatives SSRs must perform the procedure together and the following equipment must be used as a safety precaution for servicing ServerLIFT tool P N 74Y4399 two Hard hats P N 5442867 and two service qualifi...

Page 6: ... being serviced b Validate which system nodes are connected to the system control unit by visually tracing checking the clock cables c Disconnect the power supply cables from each power supply of each affected system node 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...

Page 7: ...ting 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 3 ...

Page 8: ...ns 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 A B 1 2 7 Remove all PCI cables 4 Power Systems SCM ...

Page 9: ...the location from which SMP cable is removed They must be plugged into the same location when reinstalled b Use the torque tool 41V1059 and turn in the direction indicated to unlock There is a stop to prevent over rotation 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 bef...

Page 10: ...ots d 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 6 Power Systems SCM ...

Page 11: ...locking tab to release the latch and pull cable out c 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 7 ...

Page 12: ...h both SSRs wearing hard hats position the ladders and the lift tool as shown in the graphic 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 8 Power Systems SCM ...

Page 13: ...tem node out from the rack until the rails are fully extended and locked 13 Secure node with lift tool and position ladder Note Perform the following step with the help of another SSR only if the slide rails of the node being serviced are above EIA location 29U a Gently raise the lift tool platform to stably contact the bottom of the drawer minding not to over force it as it could put upward stres...

Page 14: ...rails This should be ignored because the system has been removed from the rails and is positioned on the lift tool 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 10 Power Systems SCM ...

Page 15: ...time It may be done any time during the procedure as a reminder of which FRU s is being serviced The capacitor only holds enough of a charge to activate the LED s for around 30 seconds a 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 eithe...

Page 16: ...the TIM is Indium or Hitachi it is fixed to the heat sink In this case if the TIM is damaged the entire heat sink module of the failing system processor module must be replaced If the 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...

Page 17: ...Loosen the heat sink actuation screw by turning the nut driver P N 46K5039 counterclockwise A until the screw becomes loose and moves freely c Grip the heat sink B by the grooves on opposing sides and remove it by lifting straight up d Place the heat sink upside down on an ESD surface Note If any dust debris is to be removed from heat sink it must be done in another room or greater than 25 feet 7 ...

Page 18: ...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 14 Power Systems SCM ...

Page 19: ... 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 Note This will place the jaws at the bottom of the tool in the open position Remove SCM 15 ...

Page 20: ...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 A B B B 22 Remove the SCM a Ensure that the CP SCM tool latches A are open 16 Power Systems SCM ...

Page 21: ...P SCM tool and CP SCM module e Slowly lift the CP SCM tool and CP SCM module straight up and out of the drawer by holding on to the ring if the SCM tool has a ring otherwise grasp the sides of the tool f Place the failing CP SCM module on a clean flat surface and release the module by pushing the pushbutton down with one hand Note If installing a new SCM module the packaging tray P N 00E8478 will ...

Page 22: ...18 Power Systems SCM ...

Page 23: ...rt Services Representatives SSRs must perform the procedure together and the following equipment must be used as a safety precaution for servicing ServerLIFT tool P N 74Y4399 two Hard hats P N 5442867 and two service qualified ladders P N 46G5947 and P N 00E4866 CAUTION Do not allow dust or debris to get into the processor slot Extraneous material on the processor seat can have adverse effects on ...

Page 24: ...til the processor lid can be removed d 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 a Note If the processor lid covers two processor sockets follow these steps Note Do not let the ...

Page 25: ... 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 21 ...

Page 26: ...d position Note This will place the jaws at the bottom of the tool in the open position A B 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 a Caution Do not tilt the module install tool while searching for the locating pins Sockets damage may happen if the module is forced down on socket at an angle 22 Power Systems SCM ...

Page 27: ...o latches Make sure the two wings on the pushbutton are at about the same level as the latches i Lightly push down on the CP SCM insertion tool to allow the latches to close j 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 k Turn the SCM tool over to...

Page 28: ... press down on the center button A o While pressing the button A squeeze the tabs B together p Release the center button A while still holding the tabs B so that the tabs B are held in the locked position Note This will place the jaws C at the bottom of the tool in the open position disengaging the SCM from the tool q Lift the SCM tool out of the system 24 Power Systems SCM ...

Page 29: ... sink and TIM b Open the TIM packaging and carefully remove the TIM holding by the edges of the carrier strip and holding it away from the shipping container c Remove the protective film from the clear carrier strip by using the supplied tweezers Note The TIM must remain flat Small wrinkles are acceptable but folds are not acceptable d Using the tweezers remove the TIM from the carrier strip In th...

Page 30: ... 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 Note If the load arm is not engaged you must manually engage the load arm onto the heat sink while the load screw is being tightened B A 26 Power Systems SCM ...

Page 31: ...ep the heat sink moves noticeably to one side it is likely that a load arm is not engaged If this happens 1 Loosen the actuation screw 2 Hold the load arm onto the heat sink while tightening the screw until a firm stop is reached A 11 Placing the previously removed SCM into the Packaging a Lightly grip the SCM that you replaced by the edges and lift it off of the packaging cover b Align the bevele...

Page 32: ...tilt table Note Ensure the rack slide rails are pushed in completely and out of the way when you are moving the ServerLIFT f Release the stabilizer brake then move the ServerLIFT to the front of the rack g Rotate the ServerLIFT winch handle clockwise to raise the platform until the three 3 guide pins are just above the height of the slide rails h Adjust the lift to ensure the system node is center...

Page 33: ...continue lowering the platform until the middle guide pins drop into the middle slide rail slots o Continue lowering the platform until the front guide pins are engaged with the front slide rail slots p Verify all six guide pins are seated properly in their mounting slots 13 Set system in operating position a Lower the lift tool slightly so that the tilt table is not contacting the system node b S...

Page 34: ...system node release latches have locked into position 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 30 Power Systems SCM ...

Page 35: ...t the back of the system A 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 31 ...

Page 36: ...ode to System Control Unit Clock Card Cabling Index Number From U Loc Cable Type Index Number To U Loc 1 U2 P1 T7 Short Clock Flex Cable Left 2 U3 P1 C8 T2 3 U2 P1 T8 Short Clock Flex Cable Right 4 U3 P1 C9 T1 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 32 Pow...

Page 37: ...P1 C8 T2 3 U2 P1 T8 Short Clock Flex Cable Right 4 U3 P1 C9 T1 5 U4 P1 T7 Long Clock Flex Cable Left 6 U3 P1 C8 T3 7 U4 P1 T8 Long Clock Flex Cable Right 8 U3 P1 C9 T4 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 33 ...

Page 38: ...1 C9 T1 5 U4 P1 T7 Long Clock Flex Cable Left 6 U3 P1 C8 T3 7 U4 P1 T8 Long Clock Flex Cable Right 8 U3 P1 C9 T4 9 U5 P1 T7 Long Clock Flex Cable Left 10 U3 P1 C8 T4 11 U5 P1 T8 Long Clock Flex Cable Right 12 U3 P1 C9 T3 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 c...

Page 39: ...umber From U Loc Cable Type Index Number To U Loc 1 U2 P1 T7 Short Clock Flex Cable Left 2 U3 P1 C8 T2 3 U2 P1 T8 Short Clock Flex Cable Right 4 U3 P1 C9 T1 5 U4 P1 T7 Long Clock Flex Cable Left 6 U3 P1 C8 T3 7 U4 P1 T8 Long Clock Flex Cable Right 8 U3 P1 C9 T4 Install SCM 35 ...

Page 40: ...ong Clock Flex Cable Right 12 U3 P1 C9 T3 13 U1 P1 T7 Long Clock Flex Cable Left 14 U3 P1 C8 T1 15 U1 P1 T8 Long Clock Flex Cable Right 16 U3 P1 C9 T2 f 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 36 Power Systems SC...

Page 41: ...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 37 ...

Page 42: ...Cable U2 P1 T6 U4 P1 T4 6 1 5 m 4 9 ft SMP Cable U2 P1 T4 U4 P1 T6 Note U2 is System Node 1 and U4 is System Node 2 c If you have a three node system configuration use the diagram and the Three Node Configuration 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 1 5 m 4 9 ft SMP Cabl...

Page 43: ... 1 ft SMP Cable U4 P1 T6 U5 P1 T4 6 1 5 m 4 9 ft SMP Cable U2 P1 T4 U5 P1 T6 Note U2 is System Node 1 U4 is System Node 2 and U5 is System Node 3 d 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 39 ...

Page 44: ...hort cables Cable Number Cable Type From U Loc To U Loc 1 1 25 m 4 1 ft SMP Cable U1 P1 T3 U2 P1 T1 2 1 25 m 4 1 ft SMP Cable U4 P1 T1 U5 P1 T3 3 1 25 m 4 1 ft SMP Cable U2 P1 T2 U4 P1 T2 4 1 25 m 4 1 ft SMP Cable U2 P1 T5 U4 P1 T5 40 Power Systems SCM ...

Page 45: ...rt cables continued Cable Number Cable Type From U Loc To U Loc 5 1 25 m 4 1 ft SMP Cable U1 P1 T4 U2 P1 T6 6 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 41 ...

Page 46: ...ft SMP Cable U1 P1 T5 U5 P1 T5 Note U2 is System Node 1 U4 is System Node 2 U5 is System Node 3 and U1 is System Node 4 e Plug the SMP cables into the system node f Use the torque tool 41V1059 and turn in the direction indicated to lock There is a stop to prevent from over tightening the connector Visually confirm that the SMP cable camming mechanism is in the locked position and that the white do...

Page 47: ...the PCI cables into the cards to which they were originally connected 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 43 ...

Page 48: ...in line cords a 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 44 Power Systems SCM ...

Page 49: ...lign 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 45 ...

Page 50: ... power supply cables to each power supply of each affected system node from which they were previously removed 24 Install front bezel a 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 46 Power Systems SCM ...

Page 51: ...A If performing this procedure from a management console close this web page to continue with the procedure Install SCM 47 ...

Page 52: ...48 Power Systems SCM ...

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Page 54: ...IBM Printed in USA ...

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