If your Macbook starts to overheat, even without a special load turns on the cooler at high speeds, then it may be time to replace the thermal paste on the processor. Thermal paste is a special heat-conducting mastic that ensures the closest fit of the processor to the heatsink. The heatsink is known to be used to remove excess heat from the processor. Thus, thermal grease serves to better cool the processor. After several years of operation of any computer, thermal paste may lose its properties, and the computer starts to cool worse. In this case, replacement of the thermal paste is required. Let's take a look at the steps required to replace thermal paste in Macbook Pro 13 '' A1278.
It is necessary
- - Screwdriver set: Phillips, star and three beams.
- - Tweezers.
- - Thermal paste.
- - Soft cloth and rubbing alcohol to clean old thermal paste.
Instructions
Step 1
The first step is to unplug the power cord and turn the Macbook upside down. Unscrew all screws around the perimeter. They are all unscrewed with a cross screwdriver. The three screws are long, note where they are.
Remove the bottom cover and set it aside.
Step 2
Disconnect the battery cable. It's important to do this first. The connector is quite large and fits tightly. You need to pull it up, away from the motherboard.
After that, unscrew the 2 screws that secure the battery. They have a 3-beam slot. If you do not have such a screwdriver, then you can try to unscrew it with something else from the available means. The battery will interfere with removing the motherboard, so you must remove it.
Step 3
Now we disconnect all cables from the motherboard to peripheral devices. Basically, they all turn off simply by pulling them up.
The shield cable is held in place by a special frame. Pull it up, and then pull the connector out of the socket away from the center of the motherboard.
The connectors for the keyboard and keyboard backlight are also tricky. They have clamping panels that need to be bent upwards, and then the cables can be easily removed from the connectors.
Step 4
Disconnect the cooler cable by pulling it upwards. Unscrew the 3 screws that secure the cooler. We take out the cooler from the recess in which it is located. Now it can be cleaned, for sure some amount of dust has accumulated in it.
In addition, unscrew 1 speaker screw, which is located next to the cooler.
In principle, RAM modules will not interfere, but for convenience it is better to remove them too.
Step 5
Now unscrew all the screws that secure the motherboard. They have an asterisk type slot.
In addition, you need to unscrew the 2 screws that secure the power socket. It is located in the corner of the MacBook.
Step 6
Lift the motherboard away from you. We act very carefully, because 2 more cables are attached to it from below. They both detach by pulling them vertically from the board. After that, the motherboard is completely at our disposal.
Step 7
We put the motherboard on a flat surface with the processor and heatsink up. We unscrew the 3 screws with which the radiator is pressed against the central processor.
Step 8
Now you need to clean the old thermal paste from the heatsink and processor. You can use cotton swabs dipped in alcohol. No traces of thermal paste or cotton wool should remain when you finish cleaning. No fingerprints, etc. on surfaces also should not be.
Step 9
It remains to apply a thin layer of thermal paste on the processor and on the heatsink. The task of the thermal paste is to fill in the microscopic depressions and bumps that are present on any surface. Therefore, it should not be placed in a thick layer. The layer should be minimal.
When finished, gently place the heatsink on the processor and secure with the screws, tightening the screws gradually and in sequence.
Then reassemble the computer in reverse order.
