motherboard cpu install caution & motherboard problem

Original Post : Mr.Black ( coverboy@1234.co.kr )

Symptom

PC Status : Power is running, fan is running, Power LED is lightening,
but the Monitor is Totally blank. There is no beep from CPU.
I have made sure that monitor cable was firmly plugged to the motherboard.
How to
1. Mostly, it’s because of loosened RAM. Remove all RAM. Insert just 1 firmly, and tightly.
2. Detach HDD, VGA Card, and all peripherals. Now, start your PC.
You normally should hear a beep sound from CPU.
3. Worst Case : If you do not hear anything, it might you have faulty mother board or cpu.
If Problem has occurred from CPU.
You must replace your CPU.
Below are replacement (or installing) CPU with caution.

ATX Installation Instructions for Boxed
Intel® Desktop Processors in the 775-Land Package


The following overview and installation
instructions are for professional system integrators building ATX form factor
PCs that use Boxed Intel® processors in the 775-land package with
industry-accepted motherboards, chassis, and peripherals. It contains technical
information intended to aid in system integration. An integration video is also available to help system integrators
accurately build systems based on boxed Intel processors.

Table of contents

Handling
procedures:

Boxed processor installation:

Boxed processor removal:



Motherboard handling Top – Previous – Next


  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 ensure socket protective cover is present and properly secured.
    Do not remove socket protective cover.
  4. Do not touch socket sensitive contacts (see image below).
    Motherboard handling image  



Socket preparation TopPreviousNext




A.  Opening the
socket (see image below):


 
Opening socket image Note: Apply pressure to corner with right-hand thumb when opening or
closing load lever – otherwise lever will bounce back (as a mouse trap) causing
bent contacts.

  1. Disengage load lever by releasing down and out on the hook. This will clear
    retention tab.
  2. Rotate load lever to open position at approximately 135°.
  3. Rotate load plate to open position at approximately
    100°.



B.  Removing the
socket protective cover (see image below):


 
Removing socket cover image Note: Do not hold the load plate as a lever, but rather hold tab with
left hand while removing the protective cover with right.

  1. While supporting the load plate’s edge with left-hand index finger and
    thumb, engage protective cover finger tab with right hand thumb. When removing,
    peel the cover from the LGA775 socket while pressing on center.
  2. Set protective cover aside. Always put cover back on if the processor is
    removed from the socket.
  3. Inspect protective cover for damage. If damage is observed, replace the
    cover.
  4. After cover removal, make sure socket load plate and contacts are free of
    foreign material. Debris may be removed with compressed
    air.

  Note: Removing protective cover after CPU insertion will compromise
the ability to visually inspect socket.




C.  Inspecting for
bent contacts:


  Inspect socket contacts from different angles to make sure none are damaged.
If any are do not use motherboard. (Since labs use non-operational systems,
damaged sockets can be used.)

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

Five types of contact damage to look for (see Table 1
for potential causes and solutions):

  1. Contact is bent backwards upon itself (see Figure 1).
  2. Content is bent forward or downward (see Figure 2).
  3. Contact is bent sideways (see Figure 3).
  4. Contact tip is bent up (see Figure 4).
  5. Contact tip is missing (same as Figure 4).
 
  Figure 1. Contact is bent backwards upon itself
Figure 1
Figure 2. Contact is bent forward or downward
Figure 2
  Figure 3. Contact is bent sideways
Figure 3
Figure 4. Contact tip is bent up or missing
Figure 4

Table 1: Bent Contact Causes and Corrective
Actions

Failure
Type
Potential Causes Possible Corrective Action
1,5

  • CPU tilted during installation or removal
  • Glove/finger snag

  • Verify CPUs are installed and removed vertically ONLY
  • Vacuum wands may 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 may be considered

2

  • CPU tilted during installation or removal
  • CPU dragged across contacts during installation or removal
  • CPU 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 may be considered

3

  • CPU tilted 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 places vertically ONLY
  • Vacuum wands may be considered

4

  • Socket supplier defect
  • Glove/finger snag
  • CPU capacitors dragging

  • Return motherboard to manufacture
  • Verify packages are held by substrate edges ONLY
  • Verify CPUs are lifted and places vertically ONLY
  • Vacuum wands may be
    considered




Boxed Intel® processor installation TopPreviousNext


Install the processor and fan heatsink in the
following manner. Use this in accompaniment with the manual provided.

A.  Processor handling:

  1. Open boxed processor packaging.
  2. Inspect to ensure processor protective cover is present and properly
    secured. Do not remove processor protective cover.
  3. Caution: DO NOT TOUCH PROCESSOR SENSITIVE CONTACTS AT ANY TIME DURING
    INSTALLATION (see image below).

    Processor handling image  




B.  Processor
installation:


  1. Lift processor package from shipping media by grasping the substrate.
  2. Position processor package so that the Connection 1 Indicator triangle mark
    is on bottom left. Both key notches should be on left side.
  3. Remove protective cover by pressing retention tab and peeling the cover away
    (see image below).

    Processor installation image  
  4. Set protective cover aside. Keep the protective side-cover on the processor
    when not in the socket.
  5. Scan the processor package gold pads for any presence of foreign material.
    If necessary, the gold pads can be wiped clean with a soft lint-free cloth and
    isopropyl alcohol.
  6. Locate Connection 1 Indicator and the two Orientation Notches (see image
    below).

    Processor installation image  
  7. Grasp the processor with thumb and index finger. (Do not touch the
    Orientation Notches.) The socket will have cutouts for your fingers to fit into
    (see image below).

    Processor installation image  
  8. Carefully place the package into the socket body vertically (see image
    below).
    Note: Tilting or roughly shifting it into place can damage
    socket contacts.
    Caution: Do not use a vacuum pen for
    installation.

    Processor installation image  
  9. Verify that package is within the socket body and properly connected to
    orientation keys.
  10. Close the socket (see image below):
    Processor installation image  
    • Close the load plate.
    • Press down lightly on load plate, while engaging the load lever.
    • Secure load lever with load plate tab under load lever retention
      tab.



C.  Fan heatsink handling:

  1. To prevent damage, avoid setting the thermal solution with the prongs down.
  2. Set on side or with fan down (see image below).
    Fan heatsink handling image  



D.  Fan heatsink installation:

  Note: The thermal solution integration procedures should be performed
with the motherboard in the chassis to provide proper clearance under the
motherboard for the fastener mechanisms.

  1. Install the motherboard into the chassis.
    Note: Thermal solutions
    that come with Boxed Intel® processor use pre-applied thermal interface material
    (TIM) and do not need grease.
    Caution: Do not to touch or disturb the TIM
    on the heatsink during installation. If the TIM is disturbed contact customer
    support.
  2. Remove heatsink from packaging.
  3. Place heatsink onto the LGA775 socket (see image below).
    Fan heatsink installation image  
  4. Ensure fan cables are on side closest to fan header.
  5. Align fasteners with MB through-holes.
  6. Make sure fasteners are flush with motherboard with the following steps (see
    image below).

    Fan heatsink installation image  
    • Inspection 1:

      a.  Ensure cables are not trapped or interfering with
      fasteners.
      b.  Ensure fastener slots are pointing perpendicular to heatsink
      (see image below).

          Fan heatsink installation image  
    • Actuate fasteners (see image below):
      Fan heatsink installation image  

      a.  While holding heatsink, press down
      on fastener caps with thumb to install and lock.
      b.  Repeat with remaining
      fasteners.

    • Inspection 2 (see image below):
      Fan heatsink installation image  

      a.  Pull on fasteners to verify they are
      properly seated.
      b.  Ensure both fastener cap and base are flush with spring
      and motherboard and MB.

  7. Connect fan cable to Board CPU header (see image below).
    Fan heatsink installation image  
  8. Secure excess cable with tie-wrap to ensure cable does not interfere with
    fan operation or contact other components.




Maintaining and upgrading systems based on
Intel® Pentium® D
processors in the 775-land package
TopPrevious – Next




A.  Boxed processor
removal:


  Every time the heatsink is removed from the processor, it is critical that
the thermal interface material be replaced, in order to ensure proper thermal
transfer to the boxed processor fan heatsink. Note: Be sure to take the
proper electrostatic discharge (ESD) precautions (ground straps, gloves, ESD
mats, or other protective measures) to avoid damaging the processor and other
electrical components in the system.

Caution: If you find that
considerable force is required to remove the boxed processor assembly, consider
wearing gloves to protect your hands, and take care to keep your hands away from
any metal edges on the chassis when removing
components.



B.  Thermal interface
material attached to the heatsink:


  Intel does not recommend the removal of the thermal interface material
located on the bottom of the boxed processor fan heatsink. Removal of this
material may cause damage to the processor and will void the boxed processor
warranty. If you must remove and re-use the fan heatsink, it will require
replacement. Also, if the thermal interface material is at all damaged, you must
also replace the fan heatsink. Contact Intel Customer Support to receive a
replacement fan heatsink.



C.  Removing the boxed processor fan heatsink:

  Follow these steps to remove the boxed processor fan heatsink from the
system (see image below):

  1. Disconnect fan cable from motherboard header.
  2. Turn fastener caps (1) counter-clock wise 90° to the un-locked position.
    (You may need to use a flathead screwdriver to unlock the fasteners.)
  3. Pull up on fastener caps to unseat.
  4. Manually remove heatsink with gentle twisting motion.
 
Removing heatsink image  
  Note: To re-assemble the heatsink, reset the fastener caps to their
original position with the slot perpendicular to the heatsink. Re-attach cable
to cable management clips. Then, follow the assembly instructions (see image
below).

Removing heatsink image  




D.  Removing the
processor:


  1. Open the socket:
    • Disengage the load lever.
    • Open the load plate.

  2. Pick up FC-LGA4 processor package:
    Note: You may use a vacuum pen
    to remove the processor.

    • By hand: Grasp processor with index finger to hold the load plate
      hinge side, while thumb presses load lever side (see image below).

      Removing processor image  
    • By vacuum pen: Place a minimum 9mm cup at the approximate center of
      the Integrated Heat Spreader (IHS). The IHS is the metal portion on top of the
      processor.

      Note:
      a.  Do not place vacuum pen on IHS edge, due
      to risk of dropping processor and causing bent contacts.
      b.  Do not use
      vacuum pen for inserting CPU.

  3. Lift the package straight up and away.
  4. Assemble processor’s protective cover immediately to prevent
    contamination:

    • While holding the processor by three corners (see left image below), with
      the other hand lift processor cover by grasping at the large retention tabs (see
      right image below). Ensure retention tabs and processor contacts are pointing to
      each other.

      Removing processor image Removing processor image
    • Orient so the protective cover chamfer is matching with package connection 1
      location (see right image above).
    • Hook the first large retention tab on the processor substrate. Then press
      the opposite tab onto the processor.
    • Place processor with land side cover installed onto proper shipping media or
      other ESD approved work surface.
  5. Visually inspect socket contacts:
    • Inspection 1:

      a.  Scan socket contact array at varying angles noting
      the presence of any foreign material.
      b.  If foreign material can’t be blown
      off by compressed air, or mechanical damage (see Five types of socket contact damage – types 1 and 4) observed,
      reject the motherboard for further evaluation or socket
      replacement.

    • Inspection 2:

      a.  Look two more times down the rows and columns of
      each of the four sides of the socket to ensure all contacts within the array are
      inspected.
      b.  Inspect for type 2, 3, and 5 failures (see Inspecting for bent
      contacts
      ).

  6. Assemble LGA775 socket protective cover:
    • Hook protective cover back onto load plate, attaching bottom first, then
      clip thumb tab (see image below).

      Removing processor image  
    • Close the socket load plate and engage the load lever (see image
      below).

      Removing processor image  

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© 2006 Intel Corporation. All rights reserved. Intel and the Intel logo are
trademarks or registered trademarks of Intel Corporation or its subsidiaries in
the United States and other countries.