Introduzione

This guide will show you how to replace the Motherboard.

Orient the computer so the battery is facing you.
  • Orient the computer so the battery is facing you.

  • Slide the gray plastic battery cover to the right.

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Pull the battery toward yourself until it is fully detached.
  • Pull the battery toward yourself until it is fully detached.

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Orient the computer right side up with the rear facing you.
  • Orient the computer right side up with the rear facing you.

  • Open the Input/Output (I/O) door.

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Carefully bend the door into an arch until one of the pins releases from its slot.
  • Carefully bend the door into an arch until one of the pins releases from its slot.

  • Once one of the pins is free, remove the I/O door from the computer.

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Orient the computer with the bottom facing up and rear facing you. You should be able to read the Macintosh label in this position.
  • Orient the computer with the bottom facing up and rear facing you. You should be able to read the Macintosh label in this position.

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Use a T8 torx screwdriver to remove the 6.8mm long screw above and to the right of the modem jack.
  • Use a T8 torx screwdriver to remove the 6.8mm long screw above and to the right of the modem jack.

  • Twist counter clockwise to remove the screw.

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Use a T10 torx screwdriver to remove the four, 18mm long screws from the lower case.
  • Use a T10 torx screwdriver to remove the four, 18mm long screws from the lower case.

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Place your hands on the lower case, just above the I/O panel, and slowly lift the lower case a few inches above the main body of the computer. Release the large, gray interconnect ribbon cable just behind the I/O panel.
  • Place your hands on the lower case, just above the I/O panel, and slowly lift the lower case a few inches above the main body of the computer.

  • Release the large, gray interconnect ribbon cable just behind the I/O panel.

  • Caution: Lower case cannot be fully removed until two plastic clips in the front corners are released. See the following step for details.

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Place your thumb on the upper case, inside the empty battery slot, and your index finger near your thumb on the left side of the lower case. Pinch your thumb and index finger towards each other to release the clip. Without releasing pressure on the pinch grip, use your index finger to push the lower case upwards.
  • Place your thumb on the upper case, inside the empty battery slot, and your index finger near your thumb on the left side of the lower case.

  • Pinch your thumb and index finger towards each other to release the clip. Without releasing pressure on the pinch grip, use your index finger to push the lower case upwards.

  • Lift the lower case to remove it.

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Orient the computer so the ports are facing you.
  • Orient the computer so the ports are facing you.

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Locate the Modem Card on the lower case. Use a T8 torx screwdriver to remove the two, 7.7mm long screws from the two corners.
  • Locate the Modem Card on the lower case.

  • Use a T8 torx screwdriver to remove the two, 7.7mm long screws from the two corners.

  • The modem card is an optional component on the Macintosh 165c, and may not be included in all devices.

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Lift the modem card directly upward until it releases from the connector.
  • Lift the modem card directly upward until it releases from the connector.

  • If the modem card is difficult to remove, gently jostle it back and forth as you lift up.

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Locate and lift ram card directly up until connector releases. Move the card back and forth gently if the connector does not release immediately.
  • Locate and lift ram card directly up until connector releases.

  • Move the card back and forth gently if the connector does not release immediately.

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Locate and lift the PSRAM expansion card vertically until connector releases. If the PSRAM expansion card is difficult to remove, gently jostle it back and forth as you lift up.
  • Locate and lift the PSRAM expansion card vertically until connector releases.

  • If the PSRAM expansion card is difficult to remove, gently jostle it back and forth as you lift up.

  • The PSRAM expansion card is an optional component, and may not be included in all devices.

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Use T8 torx screwdriver to remove four, 7.7mm long screws from the perimeter of the daughterboard.
  • Use T8 torx screwdriver to remove four, 7.7mm long screws from the perimeter of the daughterboard.

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Life the daughterboard directly up to remove it from the connector.
  • Life the daughterboard directly up to remove it from the connector.

  • If the daughterboard does not easily release from the connector, gently jostle it back and forth as you lift up.

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Remove the three cylindrical silver spacers placed on top of the motherboard.
  • Remove the three cylindrical silver spacers placed on top of the motherboard.

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Lift up on the orange connector attached to the hard drive until it releases from the motherboard. Lift up on the orange connector attached to the hard drive until it releases from the motherboard.
  • Lift up on the orange connector attached to the hard drive until it releases from the motherboard.

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Open the white tab fastener by lifting up on both sides. Remove the white ribbon cable by gently pulling it away from the opened tab fastener.
  • Open the white tab fastener by lifting up on both sides.

  • Remove the white ribbon cable by gently pulling it away from the opened tab fastener.

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Open the white lock out tab located at the top of the motherboard. Remove the black and orange ribbon cable by gently pulling it away from the opened tab fastener.
  • Open the white lock out tab located at the top of the motherboard.

  • Remove the black and orange ribbon cable by gently pulling it away from the opened tab fastener.

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Use needle nose pliers to remove the two, 5mm inch wide and 10.8mm long hex bolts from the lower left side of the motherboard. To remove bolts with pliers, twist counter clockwise.
  • Use needle nose pliers to remove the two, 5mm inch wide and 10.8mm long hex bolts from the lower left side of the motherboard.

  • To remove bolts with pliers, twist counter clockwise.

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Lift up on the motherboard to remove it.
  • Lift up on the motherboard to remove it.

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Conclusione

To reassemble your device, follow these instructions in reverse order.

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