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.

  • 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.

  • 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.

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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.

  • 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.

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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.

  • 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.

  • Lift the lower case to remove it.

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  • 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.

  • 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.

  • 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.

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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.

  • 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.

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  • 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.

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  • 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.

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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.

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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.

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  • 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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