In this guide I explain how to replace failed cooling fan in a Lenovo ThinkPad T410.
In my case the fan stopped spinning properly and the laptop was displaying “Fan Error” on startup.
Cleaning the fan fixed this issue for a while but it started giving the same fan error again soon.
Make sure the computer is turned off. Unlock and remove the battery.
Remove two screws securing the RAM and hard drive covers on the bottom.
Pull the hard drive out.
Remove one screw securing the keyboard.
Slide the entire keyboard towards the display about 2-3 millimeters.
Lift up the lower part of the keyboard as it shown on the following picture.
Place the keyboard on the palm rest. Be careful, it’s still connected to the motherboard.
Disconnect the keyboard cable from the motherboard.
Now you can remove the keyboard completely.
Under the keyboard you can get some limited access to the cooling fan.
This should be enough if you decide to clean up the fan with canned air or air compressor.
Also, you can access the wireless card, CMOS battery and second RAM slot.
The internal RAM module located under the black mylar cover.
Remove all shown screws on the bottom.
Remove four screws securing the palm rest assembly.
Start separating the palm rest assembly from the bottom case.
I’m using a guitar pick for that.
Continue separating the palm rest assembly.
Before removing the palm rest assembly take a closer look at how it’s seated.
I had some hard time putting it back in place.
When you lift up the palm rest assembly you have to access and disconnect the trackpad cable from the motherboard.
Simply unplug the cable from the connector on the motherboard.
Pull the palm rest assembly away from the display and remove it from the base.
NOTE: when you install it back in place, you’ll have to seat the further part of the assembly first and after that attach the rest or the assembly back to the bottom case.
The palm rest assembly has been removed.
Remove two screws securing the left speaker.
Lift up the speaker and put it aside.
Remove four screws securing the heat sink assembly.
Disconnect the cooling fan cable from the motherboard.
Carefully lift up the heatsink and separate it from the processor.
Lift up the heatsink as it shown on the following picture and remove it.
The cooling module (heatsink and fan) has been removed.
By the way, your Lenovo ThinkPad T410 laptop might have a slightly different heatsink.
It shouldn’t be a big problem. All disassembly steps should be very similar.
Now I’m going to replace the failed fan with a new one.
Separate two foil strips from the fan and heatsink.
Remove two screws securing the fan to the heatsink.
Cut the tape securing the fan cable to the heatsink.
Remove the failed cooling fan.
Install new fan and assemble the cooling module back together.
Before you instal the cooling module back in place you’ll have to clean up the old thermal grease and apply new thermal grease.
Now you can assemble the laptop back together following all disassembly steps in the reverse order.
The hardest part for me was installing the palm rest assembly back in place and connecting the trackpad cable.
When you install the palm rest assembly do not hurry. Make sure it’s seated correctly and all latches on the palm rest assembly locked correctly to the bottom case.