Introduction
Replacing a motherboard is a crucial step when upgrading or repairing a computer because it serves as the central backbone of the entire system. All critical components—such as the CPU, RAM, GPU, and storage devices—connect through the motherboard, making it essential for system performance, compatibility, and functionality. Over time, older motherboards may become outdated or fail due to wear, preventing users from running modern software or hardware. By replacing the motherboard, users can extend the life of their computer, improve performance, and take advantage of the latest technological advancements. In this guide you will learn how to replace the motherboard on a Toshiba Qosmio X775-3DV80.
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Identify the two sliding locks on either side of the battery.
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Simultaneously slide both locks outward to release the battery.
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Using your finger or a spudger, push the optical drive out of its compartment so you can grab it.
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Pull the optical drive out of its slot in the side of the laptop.
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Loosen the single screw on the service panel by twisting counterclockwise with a Phillips #00 screwdriver.
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Using your fingers, pull the retaining clips away from the RAM sticks.
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Pull the RAM sticks out of the slots.
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Using a Phillips #00 screwdriver, remove all the remaining fourteen screws from the bottom case of the laptop.
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Using a Phillips #00 screwdriver, remove the five screws under the service panel.
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Remove the retaining clip.
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Disconnect the two ribbon cables connecting the keyboard to the laptop.
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Unplug the connector on the bottom of the laptop.
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Using a Phillips #00 screwdriver, remove the four screws securing the fan assembly to the laptop.
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Using a Phillips #00 screwdriver, remove the four screws securing the motherboard to the laptop.
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To reassemble your device, follow these instructions in reverse order.
