Introduction
Follow this guide to replace your power supply unit
What you need
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Lay the Surface face down on a padded surface
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Remove the four rubber feet at each corner concealing the Torx screws
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Remove the four Torx screws under the rubber feet.
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Two screws on the upper corners are longer than two screws on the lower corners.
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Attach suction cups to the bottom cover and then pull on the suction cups to free the bottom cover.
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Remove five torx screws holding the two fans to the midframe
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Remove the two fans
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Remove four large torx screws holding the midframe
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Remove four small torx screws holding the midframe
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Slowly remove the midframe
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Detach the connectors for the two fans and the speaker
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Remove four spring loaded torx screw labeled 1 to 4
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Remove four torx screw labeled 5 to 7
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Remove 5mm hex mounting post
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Use a spudger to remove the heatsink assembly from the motherboard
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Remove three torx screws holding the hard drive brackets
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Remove 5mm hex mounting post
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Remove the hard drive and disconnect the SATA/SATA power cable
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Remove a Phillips screw still retaining the power supply
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Remove a torx screw retaining the power supply cable
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Unplug the power supply from the motherboard
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Lift the power supply up and away from the base unit
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To reassemble your device, follow these instructions in reverse order.
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