If you are using NEC's Ultrabook Lavie Z and your PC is getting hotter than before, if the sound of the fans is getting noisy, why not try maintenance for a longer time to use?
Grease also dries and is no longer cooled when used for many years, but it is recommended because the cooling effect can be expected if the grease is repainted!
[Lavie Z PC-LZ750JS fan exchange 1]
The first Lavie Z will be disassembled from the back of the main body, but it is necessary to remove a good screw to remove the back cover.
The part surrounded by a red circle has a seal of the same color as the body called screw concealation, so let's peel off the seal with a tool such as tweezers.
[Lavie Z PC-LZ750JS fan exchange 2]
Screw concealation is easy to peel off because it is only affixed with light double-sided tape.
[Lavie Z PC-LZ750JS fan exchange 3]
After you can peel off the screw hidden, let's remove the screw with a single-minded Lys screwdriver.
[Lavie Z PC-LZ750JS fan exchange 4]
I was able to remove the back cover.
[Lavie Z PC-LZ750JS fan exchange 5]
I think that it is possible to check the battery as soon as the back cover can be removed, but the battery connector is connected to the part surrounded by a red frame.
Be sure to remove the battery connector before removing the fan before disassembling it.
[Lavie Z PC-LZ750JS fan exchange 6]
Remove the battery connector as shown in the image by sliding it sideways.
[Lavie Z PC-LZ750JS fan exchange 7]
The fan is set with a copper heat sink and will be removed at the same time, but all the screws of the red circle part will be removed.
[Lavie Z PC-LZ750JS fan exchange 8]
Next, remove the connector in the red frame part, but you can remove it if you pull it out to the left side when it says in the image.
[Lavie Z PC-LZ750JS fan exchange 9]
I think that the fan and the heat sink were able to remove it in the set by this, but it is underused that grease remains in the right part.
If you want to replace the grease with a new one, wipe the old grease with a cloth and repaint the new grease in the same position.
[Lavie Z PC-LZ750JS fan exchange 10]
The fan could be removed.
If the fan is making noise, please check once because the fan's wings may be broken.
It is possible to disassemble from here if you want to disassemble it, but because there is a possibility that it will break, it is good to rub the feather part lightly using a soft toothbrush etc. in this state.
