How to refuel the computer fan

Experience the fun of DIY with me! The steps are as follows: tool preparation: 1, a screwdriver (or two, because the fixing screws of the chassis may be different from those of the CPU fan); 2. A few drops of lubricating oil (commonly known as "engine oil") (in fact, it can't be so small, because you can't carry it), and it doesn't matter if the viscosity is higher, it will arrive at 100 on the 32nd. If not, use ordinary sewing machine oil, butter (not the kind in bread, but the kind called "calcium-based grease", don't be ridiculous) and molybdenum disulfide. I've used all these. It's okay. Note: Do not use cooking oil. The more you use it, the more sticky it will be, which will affect the normal operation of the fan. After all, it is for eating, not for lubrication. Don't "lubricate" with water. I've seen someone clean and lubricate with water, which almost knocked me out. That man is still an electrical major, so I won't talk about him in 7456. 3, a toothpick (for refueling), of course, use wire or other similar things, as long as you can dip two drops of oil; 4. A brush (if you don't have one, you can replace it with an old toothbrush to remove dust from the fan and heat sink); When the fan is disassembled, you can see that the fan blades and fins are covered with dust. At this time, you need to find a brush to clean up the dust on the heat sink and the fan blades, and uncover the plastic film at the bottom of the fan. Note: Do not completely uncover, only the bearing (yellow part) is exposed, and it is not easy to stick to it after completely uncovering. At this point, you can see that the bearing is dry and there is no lubricating oil. The reason for the noise is that I dipped a little lubricating oil here and carefully dripped it on the fan bearing. Note: just three or five drops, not too much, too much will spill out, sticky, but will stick to dust. In addition, the overflow of lubricating oil will make it difficult to attach the plastic film again. In addition, each drop of oil will make a fan blade rotate several times, so that the added lubricating oil can be wetted in the bearing. Put on plastic film after adding oil. At this time, blow a few breaths on the fan blades to see if they can rotate flexibly. If it doesn't turn, it proves that it is still stuck and needs to be lubricated again until it is completely flexible. You can also use this method if you find that the chassis power fan is ringing. Note: the source of oil is a bicycle repairman with butter. If you ask him for the size of a quail egg, give him fifty cents (too small to get). He must be as beautiful as a fart, so much oil is not worth a dime, but people who buy it in the store don't retail it. The shop that repairs motorcycles and cars must have engine oil. If you want their waste engine oil, take a small bottle to pick it up. It should be free, hehe. Other causes of chassis noise: 1, fan chassis has 2~6 fans, power supply fan, chassis fan (some not), CPU fan, graphics card fan (some not), and North and South Bridge chip fan (some not). First of all, you have to confirm where the noise comes from (this should not be difficult), maybe the noise comes from other fans; In addition, the fixation should be firm, otherwise it will vibrate with the motherboard chassis and there will be noise. 2, hard disk The current hard disk noise is generally relatively small. When the old hard disk is turned on, it can hear a sound similar to "filar silk", which is the sound of its spindle motor and cannot be solved, which is a normal phenomenon; Others can hear the sound of "giggle", which is the sound of hard disk reading (writing). Usually, everyone can feel it. After defragmentation, the sound will be lower, but the effect is not significant; If the hard disk reads (writes) loudly, you should pay attention, which may be a precursor to the bad track of the hard disk. If you find that the hard disk is slow to read and write at this time, you should be vigilant and take necessary measures to prevent data loss. It's hard to say that electronic components usually have high-frequency sounds, and some of them have different sounds when running different programs. There is no other way but to replace the parts. I think it's the oscillator inside. Why is the noise still very loud after adding oil? Maybe there is something dirty in your bearing, and there are a lot of it. Although you added oil, it still can't be lubricated effectively, and the noise is still very loud. If you want to solve the problem, you must get rid of the dirt first! You can clean it with kerosene first (of course, you can also use a lot of lubricating oil, but the effect is not good). The cleaning position is the center of the bearing. Blow the blades with your mouth while washing until the fan rotates quickly. Then rub kerosene on the outside, drip lubricating oil into the bearing and seal the protective film.

Generally, fans have labels to block the dripping holes. You need to open the label or pierce the hole to drop the oil. It is not recommended that you refuel to treat the symptoms rather than the root cause. You can drip oil for a short time and for a long time. If the seal is not tight, the oil will easily evaporate and dry up. You know!