Lenovo Thinkpad T450 Motherboard Replacement

Geschrieben von: Justin Ogihara

Kommentare: 2

Lenovo Thinkpad T450 Motherboard Replacement

Schwierigkeitsgrad

Moderate

Schritte

Zeitaufwand

45 Minuten - 1 Stunde

Einleitung

The motherboard is the central hub of all of the internal components in a device. All other components in a device send signals to the motherboard, and the motherboard is usually one of the last components to fail in a device (barring unforeseen circumstances). The following symptoms can be signs of a failing motherboard:

Blue screen of death (BSoD)
Laptop is running very slow
Laptop isn’t booting up properly
Laptop keeps freezing
Other components aren’t being recognized

If your Lenovo ThinkPad T450 is exhibiting any of the above symptoms, it may be time to replace the motherboard in your device. Follow these instructions to replace the motherboard in your laptop.

Please make sure to disconnect the ZIF connector from the motherboard prior to fully removing it from the device. You can find more information in the third image of step 27.

Werkzeuge

Schritt 1

Using your hands, slide the two locking tabs away from each other to release the battery.
Slide the battery up and out of the device.

Schritt 2

Using the JIS #00 screwdriver, unscrew seven screws from the back cover.
These screws are not removable and will remain in the back cover.
Use the JIS #00 screwdriver to remove the single 2.8 mm screw from the back cover.

Schritt 3

Insert a plastic opening tool into the edges of the laptop and work your way around the edges to pry off the back cover from the device.
Remove the back cover from the device.

Schritt 4

Using the JIS #00 screwdriver, remove the single 2.8 mm screw securing the SSD to the device.

Schritt 5

Lift the SSD up and to the left and remove it from the device.

Schritt 6

Lift up the black piece of tape and remove it to uncover the RAM sticks underneath.

Schritt 7

Using your fingers, push the two clips securing the RAM away from each other to release the RAM.
The RAM stick should pop up at a 30 degree angle.
Remove the RAM stick from the device.
Repeat this step for any additional RAM sticks.

Schritt 8

Using the JIS #00 screwdriver, unscrew the four screws securing the fan and heatsink assembly to the motherboard.
These screws are not removable and will stay on the fan and heatsink assembly.

Schritt 9

Disconnect the fan and heatsink assembly from the motherboard using the plastic opening tool.

Schritt 10

Lift up the fan and heatsink assembly and remove it from the device.
When you reassemble your device, don't forget to reapply thermal paste to the back of the heatsink and fan assembly. For proper technique and thermal paste application, please visit the How to Apply Thermal Paste guide.

Schritt 11

Lift and remove the black piece of plastic to expose the Wi-Fi card.

Schritt 12

Using the plastic opening tool, disconnect the two cables from the Wi-Fi card.

Schritt 13

Using the JIS #00 screwdriver, remove the single 2.8 mm screw.
After removing the screw, the Wi-Fi card should pop up on its own.

Schritt 14

Lift the Wi-Fi card out of the slot and remove it from the device.

Not to be Captain Semi-Obvious... but can you tell us the model of the wi-fi lan card? I am getting in my possession a t450 with wifi not working.. I have yet to look at machine to see if it is in fact a bad card.. but would like to be able to factor such cost into my purchase. I hope you see this relatively soon, as I have a Top Shelf bottle of ketchup for you if you reply soon!! Thanks

Andre -

Schritt 15

Use the plastic opening tool to remove the black piece of tape holding the cables together.

Schritt 16

Use the JIS #00 screwdriver to remove the single 2.8 mm screw from the motherboard.
Remove the black plastic covering the motherboard.

Schritt 17

Using the plastic opening tool, disconnect the CMOS battery from the motherboard.

Schritt 18

Insert the plastic opening tool underneath the CMOS battery and pry it up and away from the motherboard.
When you reassemble your device, you may need to reapply adhesive to the back of the CMOS battery.

Schritt 19

Use the JIS #00 screwdriver to remove two 2.8 mm screws securing the display cable bracket to the motherboard.
Remove the display cable bracket from the device.

Schritt 20

Disconnect the daughterboard cable and the display cable using the plastic opening tool.

Schritt 21

Using the JIS #00 screwdriver, remove the single 5 mm screw securing the bracket to the motherboard.
Remove the metal bracket from the device.

Schritt 22

Disconnect the speaker cable from the motherboard using the plastic opening tool.

Schritt 23

Using the plastic opening tool, flip up the locking tab on the zero insertion force (ZIF) connector and disconnect the cable from the motherboard.
For more information on different types of cables and connectors, please visit the Recognizing & Disconnect Cable Connectors guide.

Schritt 24

Using the plastic opening tool, disconnect the CMOS and power cables.
The power cable is a zero insertion force (ZIF) connector. For more information on disconnecting ZIF connectors, please visit the Recognizing & Disconnecting Cable Connectors guide.

Schritt 25

Using a plastic opening tool, disconnect the smartcard reader cable from the motherboard.
Using the same plastic opening tool, flip up the locking tab and disconnect the trackpad cable from the motherboard.

Schritt 26

Using the JIS #00 screwdriver, remove six 2.8 mm screws securing the motherboard to the device.

Schritt 27

Carefully grab the motherboard and lift it up slightly off of the device.
Do not completely remove the motherboard from the device. There is a zero insertion force (ZIF) connector underneath the motherboard.
Disconnect the ZIF connector and remove the motherboard from the device.
For more information on zero insertion force (ZIF) connectors, please visit the Recognizing and Disconnecting Cable Connectors guide.

I recently needed to replace the motherboard in my ThinkPad T450 Type 20BV - on boot up after the Lenovo screen it comes up with the following error message "2200 Machine type and serial number are invalid" and then boots into Windows and works fine. Is there any way to add the correct machine type and serial number - which is missing from the bios with this new Lenovo motherboard?

Thank you,

Philip

Philip Drachman -