How to open Acer notebook 4750G and clean it yourself?

1, find a clean place and prepare the toolbox screws, which are easy to lose if they are misplaced. Turn the notebook over to the back cover and take out the battery first.

2. There are 12 screws on the bottom cover. Then remove the back cover on the memory stick, and you can see the hard disk, wireless network card and memory stick.

3. Remove the hard disk and optical drive. To remove the hard disk, just remove a screw, which is the one in the corner. Only one screw is used to fix the optical drive on the back cover. When the 12 screw on the back cover is removed, the optical drive can be pulled out. When installing, don't forget to put the screws together in the order of disassembly.

4. Gently unplug the two plugs of the wireless network card, so that the motherboard can be disassembled later, and finally the memory module can be disassembled to prevent damage during disassembly.

5. The back cover is like this first, and then the keyboard is removed. The most troublesome part is this part. There are five buckles on the upper part of the keyboard, one on the left and one on the right, and five telescopic buttons on the lower part. First, press the above five buttons in turn with a flat screwdriver, and the keyboard will bounce up slowly, then unlock the left and right fixing buttons, and finally gently pull out the keyboard towards the screen.

6. After removing the keyboard, remove the data cable in the same way, then remove the main screw, and carefully break the buckles one by one along the edge of the computer with a screwdriver. Be careful and bold at this time, just break them off, provided that all the screws that need to be removed are removed. After the break, put this layer on the screen with the motherboard below.

7, remove the motherboard, because the power supply wiring is not easy to remove, so you can't completely remove the motherboard, the main data cable and interface cable can be removed. You can see the fan on the back of the motherboard.

8. Unplug the power cord of the fan and loosen the spring screw on the heat sink next to the fan, so you can remove the fan without unscrewing it. The dust in the notch is easy to clean. After it is removed, you can unscrew the small screw of the fan and break it open for internal cleaning. It is better to clean it with a brush, which is more convenient and cleaner.

9. Clean other dusty places on the motherboard. Those with silicone can be repainted for heat dissipation. After the fan is cleaned and dried, it can be installed and restored, and it can be reinstalled in the reverse direction of disassembly sequence.