Advice 1: How to remove power supply

When there is a need to replace components in the computer, of course, you can contact the experts. But, first, they do not work for free, and secondly, they are not always available at hand. The technical complexity of replacing computer parts is not. All you need is a screwdriver and accuracy.
How to remove power supply
You will need
  • computer, power supply, small Phillips screwdriver, minimal skills in handling computer
Instruction
1
All the described operations should be performed with the power off of the computer. Disconnect power from the system unit.
2
Open the side cover housing with side access to connectors on the motherboard. The unit of power most often located above the Board, but there are other options. Find it.
3
From unit supply to components inside your computer are the cables, disconnect them. Carefully remove the cables of the power supply of the hard drives and optical drives. If the cable power is connected to the graphics card, also disconnect it, squeeze the latch-lock.
4
Remove the primary and secondary cables to the power sockets of the motherboard. They are also equipped with latches that must be folded. Pull the cables carefully, you can gently sway them in the nest, but do not exert too much effort. Check that all the wires inside the computer coming from the unit power supplyhas been disconnected.
5
Remove the four screws that block the power supply bolted to the hull. They are located on the rear panel. While holding the second hand unit is power, so he fell inside the case for something important.
6
Gently, slowly then pull the power supply out of the chassis. You might have to remove the optical drive or the CPU, but in most modern cases this is not necessary.

Advice 2 : How to clean the fan

Overheating CPU is one of the most frequent problems in the computer. And if in the system unit users can still take care of yourself, on laptops, where overheating is a rather common phenomenon in a few months, the situation is more complicated.
How to clean the fan
Instruction
1
To clean the fan, cooling the CPU in the system unit, unplug the computer and remove the side cover. Then you can go two ways:• Remove the cooler, clean it and replace the thermal compound;
• Clean the fanby removing only the impeller.
2
In order to remove and clean the fan, disconnect the power cord leading to the motherboard. The cooler can be mounted over the processor in several ways: locks, clamps, screws. Loosen it from the mount and pull it from the system unit.
3
With a vacuum cleaner and a brush to clean from dust, clean the cooler from contamination. Lubricate the sole with thermo paste and apply it on the CPU, first remove the cloth remnants of the old stuff, and in reverse order secure the cooler into the system case to the motherboard.
4
Another way to clean the fan easier. The impeller fanand is located under the grate cooler, which, in turn, can also be removed. Remove the screw fixing the grille fanand carefully remove the impeller. Clean it from dust and dirt, and working the space around it in the cooler.
5
To clean fan in laptop is somewhat more complicated, but here you have two options:• Contact service for repair and maintenance of laptops;
• To clean the fan yourself, disassemble the laptop.
6
Before you disassemble the laptop, download a guide to repair and maintenance from the manufacturer's website. Laptops of different models and firms differ in design features and methods for disassembling components. It is possible that you will have to disassemble the laptop at 90% to get free access to the cooling system and clean the fan.

Advice 3 : How to clean cooler on the computer

The cooler is a small fan located inside the system unit of a computer. Such cooling devices inside the system unit can be several. Periodically must be cleaned of dirt and dust. It is necessary to clean the PC from dust, if you have changed the sound of the coolers of the system unit, or the corps began to warm noticeably stronger.
How to clean cooler on the computer
You will need
  • - Phillips screwdriver
  • - soft brush
  • vacuum cleaner with adjustable suction power
Instruction
1
Turn off the computer, unplug the power cord from the AC outlet. Using a screwdriver, remove the screws that hold the side wall of the system unit. Usually the screws are located on the rear panel of the computer.
2
Put the system unit on its side. Put on a vacuum cleaner plastic nozzle. Turn the vacuum cleaner on a minimal suction power and gently clean the inner surface of the system unit from dust. Try not to touch the cleaner circuit Board and located their items. Even though it's plastic, not metal, but still you may accidentally displace some capacitor or relay on the Board.
3
For greater cleanliness, you can wipe the surface with an alcohol pad. Wool is better not to use because it leaves fibers if you accidentally clings to elements of the boards. Now that you have removed dust, loose on the body, you can do cleaning for case fans.
4
If in the system unit there are extra coolers, remove them. Typically, just vacuum them enough. Take the coolers to the bathroom and clean them with a brush, shaking off the dust in the sink.
5
In the same way clean the cooler on the graphics card. Remove the video card if you have it installed in a separate fee and are not integrated into the motherboard. Brush dust off of the blades of the cooler outside. Don't forget to brush between the fins of the radiator. Remove the cooler with the cooler of the video card is not worth it. At the end of the cleaning blow the radiator through for yourself or by using the function of blowing dust on the vacuum cleaner. Clean off the dust with a vacuum cleaner, brush or alcohol wipe.
6
The cooler on the motherboard harder to clean. To remove it, if you have no thermal paste to the CPU. So again, clean brush and a vacuum cleaner, carefully follow the flying dust, it is better to catch them with a vacuum cleaner. See, that dust is not settled in asiamah for devices on the motherboard. This may lead to a short circuit, so after cleaning the cooler on the motherboard again go all across the Board with a vacuum cleaner, paying special attention to the connectors.
7
If you have thermal grease, you can remove the CPU together with heatsink and clean them more thoroughly and carefully. Then use alcohol wipes to clean the stone surface of the CPU and the back of the radiator from the remnants of the dried up thermal paste. Apply new thermal grease on the stone evenly and install the CPU heatsink and CPU in place.
8
Insert the card and secure it with a screw. Set back an additional cooler if they were. Close the system unit.
Note
Check that the brush did not climb the villi. If she is almost bald, than you'll leave lint anywhere on the Board computer.
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