Dell Precision 7750 GPU Replacement
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crwdns2959928:0crwdne2959928:0 ↓Use this guide to replace an old or faulty graphics card (GPU) in your Dell Precision 7750.
A GPU (graphics processing unit) is a piece of hardware that is designed to rapidly manipulate and display images, videos, and animations. Beyond graphics, GPUs excel at parallel processing.
Before using this guide, ensure that the issue you are experiencing cannot be solved via software, and that you have a means to read your M.2 drives (solid state drives) should something go wrong.
Make sure to power off your system using the shutdown option and unplug it from AC power prior to beginning the procedure.
Additionally, discharge static electricity from your body before touching internal components by touching an unpainted metal surface on the laptop chassis for at least five seconds.
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Place the laptop face-down on a clean table.
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Remove the screws using a Phillips #0 screwdriver.
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Run a plastic opening pick around the entire laptop until all clasps are disconnected.
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Remove three screws from the battery using a Phillips #0 screwdriver.
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Remove the battery cable by lifting up and away from the connector.
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Lift and remove the battery from the laptop.
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Detach the motherboard power connector.
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Detach the two fan connectors.
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Carefully loosen eight screws in numbered order (1-8).
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Carefully remove the copper heatsink.
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Remove eleven screws using a Phillips #0 screwdriver.
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Remove the single screw from the Wi-Fi board using a Phillips #0 screwdriver.
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Disconnect the white and black Wi-Fi antenna cables.
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Remove the screw holding the solid state drive.
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Pull the blue tab backwards to release the solid state drive.
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Remove the solid state drive.
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Remove six screws holding the M.2 drives using a Phillips #0 screwdriver.
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Remove the metal heatsink by lifting by the screw side.
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Remove nine screws using a Phillips #1 screwdriver.
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Disconnect the keyboard lighting ribbon cable.
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Disconnect the keyboard ribbon cable.
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Remove the antenna cables along the entire upper plastic housing.
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Remove the upper plastic mount and place it somewhere until reassembly.
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Disconnect the two ribbon cables from the upper motherboard housing.
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Remove three screws from the GPU using a Phillips #0 screwdriver.
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Remove the PCIe bridge screws using a Phillips #0 screwdriver.
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Disconnect the PW ribbon cable.
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Un-clip the cable protection.
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Disconnect the built-in screen connectors.
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Disconnect the SD ribbon cable.
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Disconnect the motherboard speaker cable.
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Move the laptop chassis off the work area to isolate the motherboard and GPU board.
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Invert the motherboard and GPU, then disconnect the GPU power cable.
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Separate the GPU from the motherboard and place it on a clean surface.
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Apply the new thermal paste after reassembling the machine, but before mounting the heatsink (Step 9).
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Use 70% or 90$ isopropyl alcohol (IPA) to remove the old thermal paste from the GPU.
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A clean GPU should look like this.
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GPU: apply new thermal paste in an "x" shape for best results, uniform spread will be applied later when you're screwing the copper heatsink back on.
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CPU: apply new thermal paste as a "line" for maximum performance, uniform spread will be applied later when you're screwing the copper heatsink back on.
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Once both the GPU and CPU have new thermal paste, carefully lay the copper heatsink back into place and view Step 8 for reassembly.
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Step 8: tighten instead of loosen in numbered order (1-8), and make multiple rounds tightening slightly until all eight screws are tight.
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To reassemble your device, follow these instructions in reverse order.
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