Processor Integration Overview for LGA1155- and LGA1156-Based Intel® Processors

Documentation

Install & Setup

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10/06/2020

The overview and installation instructions are for professional system integrators building ATX form factor PCs that use Intel® Boxed Processors in the LGA 1155 and LGA 1156-land package.

An integration video is available to help system integrators accurately install the fan heat sink and processor. You can find other installation material at the Intel® Processor Installation Center.

 

Note

This documentation covers Intel® Processors for the LGA1155 and LGA1156 socket types.

The same fan heat sinks can be used across the two sockets if the Thermal Design Profile (TDP) of the processor is the same. The fan heat sink installation is identical across both sockets.

Intel® Processors for the LGA1155 and LGA1156 socket types are not compatible between sockets due to electrical, mechanical, and keying differences. You risk damaging either the processor or the socket if you interchange the processors and socket.

 

Click or the topic for details:

Handling procedures

Motherboard handling

  1. Remove motherboard from ESD bag (if applicable).

  2. Make sure socket load lever and load plate are secured. Do not open socket at this time.

  3. Inspect to see that the socket protective cover is present and properly secured. Do not remove the socket protective cover, and do not touch socket sensitive contacts.
    do not touch socket sensitive contacts

Socket preparation

To open the socket, follow these steps.

  1. Apply pressure to the corner of the load lever with the right-hand thumb. To clear the retention tab, disengage load lever by releasing down and out on the hook.

  2. Rotate load lever to open position at about 135 degrees.

  3. Rotate load plate to open position at about 150 degrees.
    how to open the socket

Note Apply pressure when pressing the load lever, or the lever bounces back, like a mouse trap, and can cause bent contacts.
 

To remove the socket protective cover, follow these steps.

  1. Place thumb against the front edge of the protective cover and rest index finger on the rear grip to maintain control of the cover.

  2. Lift the front edge of the protective cover to disengage from the socket. Keep control of the cover by holding the rear grip with index finger.

  3. Lift protective cover away from the socket, being careful not to touch the electrical contacts.

     

    do not touch the electrical contacts

 

Caution
caution icon
Vertical removal is not recommended, as it requires higher force and can lead to socket contact damage. Never touch fragile socket contacts to avoid damage.

 

Inspect for bent contacts

Inspect socket contacts from different angles to make sure none are damaged. If any are damaged, do not use the motherboard.

 

Note If any socket or motherboard is suspected of being mishandled, the socket should be examined.

 


Here are some of the most common types of contact damage. See the table that follows the images for potential causes and corrective actions.

 

Contact is bent backwards on itself
bent backwards contact
Contact is bent forward or downward
bent forward contact
Contact is bent sideways
sideways contact
Contact tip is bent up or missing
contact bent up or missing
 


Bent contact causes and corrective actions

 

Failure Type Potential Causes Possible Corrective Action
1,5

CPU tilted or dropped during installation or removal

Glove/finger snag

Verify CPUs are installed and removed vertically only.

Vacuum wands can be considered.

Verify CPUs are being held by the substrate edge only.

1,5

Glove/finger snag

CPU capacitors dragging

Verify packages are held by substrate edges only.

Verify CPUs are lifted and placed vertically only.

Vacuum wands might be considered.

2

CPU tilted or dropped during installation or removal

CPU dragged across contacts during installation or removal

CPU tilted or dropped during installation or removal

Socket protective cover dropped into socket

Verify packages are held by substrate edges only.

Verify CPUs are lifted and placed vertically only.

Vacuum wands might be considered.

3

CPU tilted or dropped during installation or removal

CPU dragged across contact array

Glove/finger snag

Verify packages are held by substrate edges only.

Verify CPUs are lifted and placed vertically only.

Vacuum wands might be considered.

4

Socket supplier defect

Glove/finger snag

CPU capacitors dragging

Return motherboard to manufacturer

Verify packages are held by substrate edges ONLY.

Verify CPUs are lifted and placed vertically only.

Vacuum wands might be considered.

 
Boxed Intel® Processor and fan heat sink installation

Use these instructions as an accompaniment to the manual provided.

Processor installation

  1. Open boxed processor packaging.
  2. Inspect to make sure processor protective cover is present and properly secured. Do not remove processor protective cover.
    Caution
    Caution icon
    Do not touch processor sensitive contacts at any time during installation.
    Do not touch processor sensitive contacts
     
  3. Carefully lift the processor package from the shipping media by the substrate edges.
    Carefully lift the processor package

  4. Scan the processor package gold pads for any presence of foreign material. If required, wipe the gold pads clean with a soft lint-free cloth and isopropyl alcohol.

  5. Find connection 1 indicator on the processor, which aligns with connection 1 indicator chamfer on the socket. Notice the processor keying features that line up with posts along the socket walls.
    contact 1 indicator and keying features locations contact 1 indicator and keying features locations

  6. Grasp the processor with thumb and index finger along the top and bottom edges. (Do not touch the Orientation Notches.) The socket has cutouts for your fingers to fit into.

  7. Carefully put the processor into the socket body vertically.

    Note Tilting or roughly shifting it into place can damage socket contacts.
     
    Caution
    caution icon
    Do not use a vacuum pen for installation.
      Carefully put the processor
  8. Verify that the processor is in the socket body and properly oriented in the socket.
    verify position

  9. Close the socket.

  10. Gently lower the load plate.

  11. Make sure the front edge of the load plate slides under the shoulder screw cap as the lever is lowered.

  12. Latch the lever under the corner tab of the top plate, being cautious not to damage the motherboard with the tip of the lever.
    lift top plate

Fan heat sink installation

To prevent damage, avoid setting the fan heat sink with the prongs down. Set it on its side or with the fan-side down.
Avoid damage, avoid placing prongs on hard surfaces

Note The fan heat sink integration procedures should be done with the motherboard in the chassis to provide proper clearance under the motherboard for the fastener mechanisms.
 
  1. Install the motherboard in the chassis.
    Note Thermal solutions that come with the boxed Intel® Processor use pre-applied thermal interface material (TIM) and do not need grease.
     
    Caution
    caution icon
    Do not to touch or disturb the TIM on the heat sink during installation. If the TIM is disturbed contact customer support.
     
  2. Remove heat sink from its packaging.

  3. Put the heat sink onto the LGA115x socket.

  4. Make sure fan cables are on the side closest to the fan header.

  5. Align fasteners with the motherboard through-holes.

  6. Make sure fasteners are flush with motherboard.
    Fastener flush against MB

  7. Make sure cables are not trapped or interfering with fasteners.

  8. Make sure fastener slots are pointing perpendicular to heat sink.
    Make sure fastener slots are pointing perpendicular to heat sink

  9. While holding heat sink, press down on fastener caps with thumb to install and lock. Repeat until all four fasteners are locked in place.
    press down (4 fasteners)

  10. Pull on fasteners to verify they are properly seated.

  11. Make sure both fastener cap and base are flush with spring and motherboard.
    both fastener halves are flush against spring

  12. Connect fan cable to motherboard CPU header.
    Connect fan cable to motherboard CPU header

  13. Secure excess cable with tie-wrap to ensure cable does not interfere with fan operation or contact other components.

Fan heat sink and boxed processor removal


Fan heat sink removal

Note Be sure to take the proper electrostatic discharge (ESD) precautions (ground straps, gloves, ESD mats, or other protective measures). Take steps to avoid damaging the processor and other electrical components in the system.
 


Follow these steps to remove the boxed processor fan heat sink from the system.

  1. Disconnect the fan cable from the motherboard header.

  2. Turn fastener caps (1) counter-clockwise 90 degrees to the unlocked position. You might need to use a flathead screwdriver to unlock the fasteners.

  3. Pull up on fastener caps to unseat (2).

  4. Manually remove heat sink with gentle twisting motion.
    unlock position

    Note To reassemble the heat sink, reset the fastener caps to their original position with the slot perpendicular to the heat sink. Reattach cable to cable management clips. Then, follow the assembly instructions.
      fastener slots perpendicular to heatsink
    Note Every time the heat sink is removed from the processor, the thermal interface material (TIM) MUST be replaced. Replacement is critical for proper thermal transfer from the processor to the boxed processor fan heat sink.
     


Boxed processor removal

Follow these steps to remove the processor.

  1. Disengage the load lever.

  2. Open the load plate.

  3. Remove the processor package, holding along the top and bottom edges, or by using a vacuum wand.

  4. Keeping the processor horizontal, remove the processor with a vertical motion to avoid damaging the socket contacts.
    remove the processor

  5. Protect the processor by putting it in a specially designed tray or ESD retainer for storage. Do not allow the processor to reset on the gold lands.


Assemble LGA115x socket protective cover

  1. Hold protective cover at 45-degree angle to the LGA115x socket.

  2. Carefully lower protective cover on hinge side first, to contact with the outside wall of the LGA115x socket:

    1. Engage protective cover retention features to outside of LGA115x socket, and align two cover corners to socket corners. This step is critical to avoid Bent Contact Damage.

    2. Lower protective cover to attach to the LGA115x socket on shoulder screw side.

  3. Hold cover and move gently from side-to-side. Feel the play with the cover and socket to verify that the protective cover is properly seated.
    remove the processor

  4. Close the socket load plate and engage the load lever.
    close socket load plate