Lenovo Thinkpad T490S Thermal Paste Replacement Repair Guide

Difficulty

Moderate

Steps

3

Time Required

                          20 - 30 minutes            

Sections

1

• Thermal Paste
• 3 steps

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Introduction

What you need

Step 1

              Opening the back panel               

• Unscrew all screws holding the back panel in place.
• Use a prying tool to release all the clips and remove the panel.

Unscrew all screws holding the back panel in place.

Use a prying tool to release all the clips and remove the panel.

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Step 2

              Changing the thermal paste               

• It is recommended to disconnect the battery.
• Unscrew the 4 screws holding the CPU heatsink and disconnect the fan.
• Clean the old thermal paste both from the cooler and the CPU. It is best to use isopropyl alcohol and cotton swabs or paper towel, but be careful not to go too hard on the CPU.
• It is also recommended to use compressed air to remove any dust in the laptop and the fan.
• Dont use too much thermal paste, just enough to cover some portion of the pad. If you have a spreader, use it. The thermal paste will apply evenly after you tighten the heatsink.
• Last, put the heatsink back carefully and tighten the screws in order 1 -> 4 to ensure even pressure. Dont forget to plug in the fan cable.

It is recommended to disconnect the battery.

Unscrew the 4 screws holding the CPU heatsink and disconnect the fan.

Clean the old thermal paste both from the cooler and the CPU. It is best to use isopropyl alcohol and cotton swabs or paper towel, but be careful not to go too hard on the CPU.

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

Dont use too much thermal paste, just enough to cover some portion of the pad. If you have a spreader, use it. The thermal paste will apply evenly after you tighten the heatsink.

Last, put the heatsink back carefully and tighten the screws in order 1 -> 4 to ensure even pressure. Dont forget to plug in the fan cable.

Step 3

              Other upgrades               

• Once you opened the back cover, it is a good idea to upgrade the SSD if you want.

Once you opened the back cover, it is a good idea to upgrade the SSD if you want.

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

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                    Simeon Brankov                     

Member since: 11/08/2020

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