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Replacing a laptop's motherboard can cause irreversible damage to the device, and it should be a last resort. Some professionals prefer to salvage any working components and replace the whole machine because this saves time and increases the likelihood of retaining working parts. The construction of the HP Envy 4-1105 makes this procedure particularly inconvenient since it is impossible to get at the motherboard without disconnecting many other delicate components.
However, if you are confident that a new motherboard will improve your laptop's performance, and you are comfortable with the possibility that you will need to replace the entire laptop if the motherboard replacement doesn't work out, this guide can help.
For best results, familiarize yourself in advance with the appearance of your laptop's components, consult a reference manual for safe handling of electronics, and make sure your work space is secure, so any components you leave out will not be disturbed.
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Remove the four 4.0 mm screws that hold down the hard drive case using a Philips #1 Screwdriver.
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Move the hard drive case and hard drive so that you can easily reach the hard drive cable.
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Prepare to disconnect the motherboard from any components you have not already removed, including the screen, touchpad, and keyboard.
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Gently lift out the motherboard and heat sink. If the motherboard has been fully disconnected from other components, it will lift free easily.
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If the motherboard seems stuck, do not force it. Instead, return to previous steps to see if there is a connection or screw you have missed. Also check for tape, glue, or similar materials that may be attached to the motherboard.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.