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Dell Latitude E5420 Thermal Paste Replacement

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    1. Dell Latitude E5420 Thermal Paste Replacement, Opening the back panel: step 1, image 1 of 3 Dell Latitude E5420 Thermal Paste Replacement, Opening the back panel: step 1, image 2 of 3 Dell Latitude E5420 Thermal Paste Replacement, Opening the back panel: step 1, image 3 of 3
      • Unscrew all screws holding the center back panel in place.

      • Remove the battery.

      • Unscrew the 1 screw that holds the right back panel and remove it.

      • Unscrew the 4 screws holding the CPU heatsink.

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    2. Dell Latitude E5420 Thermal Paste Replacement, Changing the thermal paste: step 2, image 1 of 3 Dell Latitude E5420 Thermal Paste Replacement, Changing the thermal paste: step 2, image 2 of 3 Dell Latitude E5420 Thermal Paste Replacement, Changing the thermal paste: step 2, image 3 of 3
      • Clean the old thermal paste from both the cooler and the CPU.

      • Use isopropyl alcohol and cotton swabs or paper towel, but be careful not to press too hard on the CPU.

      • It's also recommended to use compressed air to remove any dust in the laptop and the fan.

      • Use only enough thermal paste to cover a portion of the pad. Use a spreader if you have one.

      • The thermal paste will apply evenly after you tighten the heatsink.

      • You can replace the thermal pad as well it if is in bad condition.

      • Here you can upgrade the CPU if you want.

      • Place the heatsink back into the unit carefully and tighten the screws in an "X" pattern to ensure even pressure. Don't forget to plug in the fan cable.

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    3. Dell Latitude E5420 Thermal Paste Replacement, Other upgrades: step 3, image 1 of 1
      • Once you have the back cover opened, it is a good opportunity to upgrade the SSD and RAM.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

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Simeon Brankov

Member since: 11/08/20

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