Introduction
If your 700m is prone to overheating, a new fan and some upgraded thermal paste may be just the ticket. You can also use this guide to access the fan for cleaning.
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Before you begin, make sure the 700m is powered off.
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Unplug the power cable.
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Flip the 700m over and remove the battery.
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Slide the battery release switch toward the center of the 700m, and then pull the battery free from the back.
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Remove the three Phillips screws securing the hard drive cover.
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Remove the hard drive cover and set it aside.
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Remove the two Phillips screws securing the hard drive retaining bracket.
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Remove the retaining bracket using your fingers or a pair of tweezers.
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Remove the two Phillips screws securing the wi-fi cover.
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Remove the wi-fi cover and set it aside.
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You may find two Phillips screws located above and below the wi-fi card slot. If these screws are present, remove them now.
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Using the flat end of a spudger, disconnect the black and white wi-fi antenna wires by prying them up from the wi-fi card.
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Two clips secure the wi-fi card in place, one on either side. Using your fingers, spread the clips away from the wi-fi card.
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Lift the wi-fi card to an angle of about 30 degrees and slide it out.
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Slide the release switch for the optical drive toward the back of the 700m, and remove the optical drive.
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Remove seven Phillips screws from the bottom of the 700m.
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This screw is shorter in length than the others.
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Rotate the 700m 90 degrees clockwise, and identify the VGA port.
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Using a 5 mm socket, remove the two hex nuts located on either side of the VGA connector.
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Flip the 700m over, and remove the two Phillips screws located on the back near the display lid hinges.
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Open the display and lay it down flat.
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Beginning from the left side, use the flat end of a spudger to gently pry up the plastic trim that runs along the top of the keyboard. Remove the trim.
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Tilt the top of the keyboard up at an angle and push the keyboard toward the back of the 700m, freeing the tabs along the bottom.
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Tilt the bottom of the keyboard up at an angle, and use the pointed end of a spudger to disconnect the ribbon cable by pushing open the clips on either side.
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Remove the keyboard.
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Using your fingers and the tip of a spudger, gently loosen the wires and free them from their channels.
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Pull the lower ends of the black and white wi-fi antenna wires through the hole near the middle of the 700m.
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Using your fingers or a pair of tweezers, disconnect the speaker cable by pushing the connector toward the back of the 700m.
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Identify the display inverter cable, which connects to the motherboard just above and to the right of the speaker cable connector.
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Use the flat end of a spudger to disconnect the inverter cable by prying up on each side of the connector.
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Identify the LCD cable, which connects to the top left side of the motherboard.
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To disconnect the LCD cable, grab the pull tab on the top of the connector and pull it straight up from the motherboard.
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It may be helpful to use a spudger or small flathead screwdriver for extra leverage.
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Remove the two Phillips screws securing the inner RAM cover.
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Tilt the right side of the RAM cover up at an angle and remove it.
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Two clips secure the RAM module in place, one on either side. Using your fingers, spread the clips away from the RAM module.
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Lift the RAM module to an angle of about 30 degrees and slide it out.
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Use the pointed end of a spudger to disconnect the touchpad ribbon cable connector by pushing open the small clips on either side.
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Beginning from the top left, use your fingers to separate the upper case from the 700m by pulling it straight up.
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Remove the upper case.
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Swing the right side of the motherboard up at an angle, and then slide the motherboard to the right to remove it.
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Flip the motherboard over and lay it down flat.
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Disconnect the fan wire from the motherboard by pulling the connector straight up.
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If you are replacing either the fan or heat sink, but not both, remove the three Phillips screws securing the fan to the heat sink, and then remove the fan.
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If you are re-using the fan, use compressed air to blow the fan blades and airflow channel clean of dust and debris.
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Now use our guide on How to Apply Thermal Paste to clean your heat sink and add some spicy hot thermal paste!
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To reassemble your device, follow these instructions in reverse order.
2 comments
Very complete - nice job
A very well detailed instruction , very well presented, easy to follow and step by step pictures reference for the amateur handy husband . Thanks for the acquired knowledge you have given.