1. Look at the pin fixing principle of the fan. Two pieces of plastic are used as fastening pins with a fastening pin inserted in the middle.
When the expansion bolt is inserted into the fan fixing hole of the motherboard, the expansion bolt column is inserted between the two expansion bolts, so that the fan can be fixed and pressed on the CPU, and it is only necessary to operate in the opposite direction when disassembling.
2. There are also iron bars that can be pressed down on both sides, and a spring steel bar is connected in the middle.
The principle is to press down the iron bars on both sides, and the square mouth under the iron bars is hung on the hook of the CPU base, so that the two iron bars in the middle and the spring steel bars can fix the heat sink on the CPU base together.
When disassembling, first press the iron bar on one side to make it disengage from the hook of the CPU base, and then push it toward the fan to make it disengage from the hook completely. If one party is torn down, the other party will naturally die.
The removal of the fan is described below.
Open the fastening bolts at the four corners of the CPU fan with a screwdriver or hand Jinsong.
Pull up the four corners of the fan and tighten the bolts.
Unplug the power cord from the fan and motherboard.
At this time, you can directly remove the fan by hand.