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Introduction

The small form factor makes the NUC too prone to overheating due dust accumulation in the CPU cooler air outlet fins

  1. Place the NUC upside down and select a PH2 Phillips screw driver bit Place the NUC upside down and select a PH2 Phillips screw driver bit Place the NUC upside down and select a PH2 Phillips screw driver bit
    • Place the NUC upside down and select a PH2 Phillips screw driver bit

  2. Start by using a Phillips head #2 screw driver to remove the lower screws on the lower case door. These screws are held in with retainers, so they won't fall out when you flip the lid.
    • Start by using a Phillips head #2 screw driver to remove the lower screws on the lower case door.

    • These screws are held in with retainers, so they won't fall out when you flip the lid.

    What are the size of these case screws?

    Michael Lepore - Reply

  3. Lift the door, and keep an eye on the cables that connect to the NUC's motherboard. These cables are the power and data cables for the 2.5" hard drive bay. Carefully unplug the cables from the motherboard, and set the bracket aside. In the last photo, the slot for a blade SSD is marked with a red arrow. This is where you would install the blade SSD, and use a screw to hold it in place.
    • Lift the door, and keep an eye on the cables that connect to the NUC's motherboard. These cables are the power and data cables for the 2.5" hard drive bay.

    • Carefully unplug the cables from the motherboard, and set the bracket aside.

    • In the last photo, the slot for a blade SSD is marked with a red arrow. This is where you would install the blade SSD, and use a screw to hold it in place.

  4. Change the screw driver bit to the PH1 one. Unscrew the V-NAND SSD and carefully slide it out of its connector.
    • Change the screw driver bit to the PH1 one.

    • Unscrew the V-NAND SSD and carefully slide it out of its connector.

    • Previous step as video

  5. Change the screw driver bit to PH1
    • Change the screw driver bit to PH1

  6. Unscrew the screws marked in red circles Unscrew the screws marked in red circles Unscrew the screws marked in red circles
    • Unscrew the screws marked in red circles

  7. Remove the WiFi and Bluetooth antenna cables (be extremely careful when doing this otherwise you risk to rip the base contact terminal off the PCB) Remove the stereo mic cable from the motherboard connector. Pay attetion to the WiFi cable hidden under a black piece of tape
    • Remove the WiFi and Bluetooth antenna cables (be extremely careful when doing this otherwise you risk to rip the base contact terminal off the PCB)

    • Remove the stereo mic cable from the motherboard connector.

    • Pay attetion to the WiFi cable hidden under a black piece of tape

    Remove WiFi an Bluetooth antenna Cable very carefully. Terminals can be ripped of easily.

    Christian Reinhold - Reply

    very true, I’ll add it to the guide

    Vladimir Knobel - Reply

    Added to the step in the guide, thanks for pointing that out!

    Vladimir Knobel - Reply

    • Disconnect mic cable

    • Remove padders from the sides

  8. Not all are necessary only the two depicted. Not all are necessary only the two depicted.
    • Not all are necessary only the two depicted.

  9. Use a pry tool to lift the motherboard from the casing Marked with red circles the dust signs evident on first sight Marked with red circles the dust signs evident on first sight
    • Use a pry tool to lift the motherboard from the casing

    • Marked with red circles the dust signs evident on first sight

    Amazing! Could replace the fan. Have also removed the 4 screws of the heatsink , and renewed the thermal paste underneath it. That was necessary. It was dried out. THANKS!! It works like new: no overheating anymore. A lot faster.

    lutgart.schreyen - Reply

    The key for getting the motherboard is to move apart very firmly the two opposite sides of the metal casing, so as to let the connectors move down.

    Jan Drouaud - Reply

  10. Remove the 3 screws fixing the CPU fan Remove the fan power connect from the motherboard Remove the fan power connect from the motherboard
    • Remove the 3 screws fixing the CPU fan

    • Remove the fan power connect from the motherboard

  11. You will need to use compressed air, a small vacuum cleaner or something similar to blast off all the stucked dust. You will need to use compressed air, a small vacuum cleaner or something similar to blast off all the stucked dust. You will need to use compressed air, a small vacuum cleaner or something similar to blast off all the stucked dust.
    • You will need to use compressed air, a small vacuum cleaner or something similar to blast off all the stucked dust.

  12. I'm using a compressed air can (optional)
    • I'm using a compressed air can (optional)

    • Video of the procedure

    • Video of the procedure

  13. This step is probably not necessary, but for the sake of completeness here it is. Remove the screws holding the CPU cooler following the numbers on them.
    • This step is probably not necessary, but for the sake of completeness here it is.

    • Remove the screws holding the CPU cooler following the numbers on them.

  14. Use isopropyl alcohol for this, be careful not to touch the the thermal pads on the chips around the CPU. Use isopropyl alcohol for this, be careful not to touch the the thermal pads on the chips around the CPU. Use isopropyl alcohol for this, be careful not to touch the the thermal pads on the chips around the CPU.
    • Use isopropyl alcohol for this, be careful not to touch the the thermal pads on the chips around the CPU.

  15. Be careful not to apply too much of it.
    • Be careful not to apply too much of it.

Conclusion

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

18 other people completed this guide.

Vladimir Knobel

Member since: 03/27/2014

1,487 Reputation

2 Guides authored

17 Comments

Very helpful, thank you!

Ray Wang - Reply

Great tutorial, thanks, now my fan is very clean and quiet. Thanks for spending time to create this guide!

Schüszterl Ferenc - Reply

I did see this guide after finding out the same steps myself and having seen this guide before doing so would be very helpful.

Jack Graus - Reply

Great tutorial. Clear pictures, solid instructions. Thanks a lot!

Koen Veys - Reply

you are welcome

Vladimir Knobel -

Thank you. Awesome video! How often do NUC's get heating issues from average use? Is this also Intel's troubleshooting method, or would they ship a replacement NUC?

UTuberoni - Reply

Thank you very much! This seems to be problem with NUCs because the first one I had was replaced under warranty after the fan quit but glad I was able to clean this to hopefully keep it running longer.

Patrick McNamara - Reply

Glad it helped!

Vladimir Knobel -

Just what I needed and couldn’t find elsewhere! Thank you.

Nikolay Cholakov - Reply

Great guide. Super useful, A+

Brad Thelad - Reply

Hello,

Thank you very much for this tutorial.

What is the thickness of thermal pad?

L B - Reply

Hi @L+B I don’t know which one you mean but I’m afraid I don’t possess that information.

Vladimir Knobel -

I own the same model as yours (8i7BEH).

I have bought thermal paste for CPU but not yet the thermal pads (for eDRAM and PCH) and was wondering what to buy before disassembling my unit :-)

L B -

Incredibly helpful, thank you! My NUC started blowing like a jet engine and thermal throttling and I realized it was hitting 100C temps. Followed this guide and found my heatsink / fan slots were completely blocked with fine dust - no hair or dust bunnies, but just plugged completely. Blew it out and am back down to 75C at max (transcoding) usage.

Answering two questions above:

- antenna connectors pull straight out from the motherboard. A pair of tweezers is a good tool for this.

- thermal pads are 1mm. came up as 0.7 on my calipers so assuming slightly compressed.

My personal mistake - if you find any of the screws connecting the outer case to the unit won’t screw down, check where you put the screws connecting the motherboard to the base. I had accidentally put a motherboard screw into a case screw hole and then couldn’t screw in that case screw until I moved the motherboard screw.

Taking photos as you go is a good idea!

solstyce9 - Reply

Awesome guide. Helped me a lot!

trajche.manev - Reply

Can you measure the distance betwen the holes that hold the cooling radiator ? I’m planning on upgrading it with a regular CPU cooler. Thanks !

Lucian Pop - Reply

Great, thx! Works for Intel NUC8BEB / Wortmann Terra PC-Micro Sielent 6000 almost identical. After disassembling the unit, I applied a little WD40 to the noisy fan. Did the trick!

Tobias Baumhauer - Reply

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