Many users are faced with a situation where their performance is Asus X751L begins to noticeably decrease, and the cooling system makes extraneous noise. These are sure signs of the need for preventive maintenance, which cannot be performed without access to internal components. Disassembling this device requires care and understanding of the design, since the plastic of the case is quite fragile.
The correct dismantling procedure will not only allow you to replace thermal paste and clean the ventilation ducts, but also expand the capabilities of the laptop by installing a more productive RAM or solid state drive. In this article, we will look at each stage of the process in detail so that you can do the work yourself without resorting to service centers.
## Preparing the workplace and necessary tools
Before you start withdrawing back cover, you need to prepare space and tools. The workbench should be clean, well-lit and non-conductive to avoid short circuits or loss of small parts. You will need Phillips-head screwdrivers PH0 and PH00, a plastic card or pick for prying the latches, and a container for screws.
It is important to completely disconnect the device from power before starting work. Disable Asus X751L from the mains and remove the battery if it is removable. This model often has a built-in battery, so you will need to disconnect the battery power connector from the motherboard before removing the screws. This is a critical step for working with electronics safely.
β οΈ Attention: Do not use metal objects to pry the cover, as this will cause scratches and damage to the decorative coating of the case. Use only special plastic tools.
Make sure you have an antistatic wrist strap or periodically touch a grounded metal object to discharge static electricity. Static discharge can instantly damage motherboard or other sensitive components.
β οΈ Attention: Even in the absence of visible damage, static electricity can disrupt the operation of microcircuits. Grounding is a prerequisite for successful repairs.
## Removing the back cover and disconnecting external connectors
The first step is to unscrew all the screws securing the bottom of the case. On the model Asus X751L they may be hidden under the rubber feet, so look carefully at the bottom of the unit. After removing the fasteners, you need to carefully unclip the plastic latches that hold the cover in place around the perimeter. Movements should be smooth, without using excessive force.
Use a plastic card, inserting it between the body and the cover, and move along the contour until you hear a characteristic click. When all the latches are released, the cover can be easily removed, allowing access to the insides. At this point you will see cooling system, hard drive and memory modules.
β οΈ Attention: If the cover does not budge, check whether you forgot to unscrew all the screws. Sometimes the manufacturer hides the screw under a warranty sticker.
After removing the cover, first of all, disconnect the touchpad and keyboard cable if you plan to dismantle them. Be extremely careful with the connector clamps: they are very fragile and easily break if removed carelessly.
β οΈ Attention: Disconnect the cables only after disconnecting the main battery power connector to avoid short circuit on the board.
How to properly disconnect the touchpad cable?
The touchpad cable is usually fixed either with a clamping bar or a clip. If the clip lifts up, carefully lift it with a plastic tool and pull out the cable. If a strip is used, unscrew the screws and remove it, then remove the cable.
- Standard set
- Impact screwdriver
- Magnetic mat
- I have nothing
## Dismantling the cooling system and replacing thermal paste
Cooling system in a laptop Asus X751L Over time, it becomes clogged with dust, which leads to overheating of the processor and video card. To fix this problem, you need to remove the radiator. Unscrew the screws holding the radiator, following the order indicated by the numbers on the case. This will ensure that pressure is released evenly from the processor and prevent damage to it.
After removing the radiator, clean the fan blades and radiator fins from accumulated dust. Use compressed air or a special brush. Old thermal paste should be completely removed from the processor die and heatsink base using an alcohol wipe or isopropyl alcohol.
β οΈ Warning: Do not use water or household cleaners to remove old thermal paste as they may cause contact corrosion.
Apply a new one thermal paste thin layer on the center of the processor. Excess can leak under the crystal and cause problems. Reinstall the radiator and tighten the screws in the reverse order indicated on the case.
βοΈ Cooling maintenance procedure
## Working with drives and RAM module
In the model Asus X751L Often a standard 2.5-inch hard drive is installed. To remove it, you need to unscrew the mounting screws and carefully remove the device from the slot. If you are planning an upgrade, you can replace the HDD with a fast one SATA SSD, which will significantly speed up the system.
RAM modules are also available for replacement. They are secured with metal latches on the sides. Carefully move the latches to the sides, and the memory bar itself will rise at an angle. Remove it and insert a new one, making sure that the key matches the contacts.
How to determine compatible memory for Asus X751L?
This model supports DDR3L memory with a voltage of 1.35V. The frequency is usually 1600 MHz. Please check the specifications for your specific variant before purchasing as there are variations with different chipsets.
The table below shows the main characteristics of components that can be replaced in this laptop:
| Component | Interface type | Maximum volume | Features |
|---|---|---|---|
| RAM | DDR3L SODIMM | 16 GB | Low voltage 1.35V |
| Hard drive | SATA III | No restrictions | Format 2.5 inches, thickness 9.5 mm |
| Optical drive | SATA | Any | Can be replaced with a second HDD (caddy) |
| Wi-Fi module | Mini PCIe | Any | Standard height, 2 wire antennas |
Before purchasing a new SSD, check the thickness of your old hard drive to ensure that the new drive and cables do not interfere with the lid closing unless you are using a caddy adapter.
## Case assembly and final check
After completing all the necessary manipulations with the internal components, proceed to assembly. Replace the cover, making sure that all cables are routed correctly and are not pinched by the housing. Secure the screws first in the corners, then in the center to avoid the cover being skewed.
Before turning on the laptop, perform a visual inspection. Make sure you remember to connect the battery, touchpad, and keyboard. Errors at this stage may result in the laptop not turning on or the keys not working.
β οΈ Attention: Do not turn on the laptop immediately after assembly if you are not sure that all cables are connected correctly. Double check each connector.
Proper assembly sequence and checking all connections before applying power is the key to successful completion of the upgrade or repair job.
Turn on your device and go to BIOS or Device Manager in the operating system. Check whether the new drive is detected, whether the processor frequency and idle temperature have changed. If all indicators are normal, you can close the lid with the latches and use the laptop as usual.
## Conclusion and recommendations for use
Disassembling a laptop Asus X751L - This is not only a repair method, but also an excellent opportunity to extend the life of the device. Regular cleaning of the cooling system and replacement thermal paste every 1-2 years allows you to maintain productivity at a high level. If you feel that your laptop has become hotter or noisier, do not put off visiting service or disassembling it yourself.
It is critical not to overtighten the screws during assembly, as the plastic of the Asus X751L case is prone to cracking under excessive force. Use a torque screwdriver or just control your hand force to avoid damaging the threads.Remember that proper maintenance saves money on replacement components. A clean laptop is quieter and more stable, and a memory or disk upgrade turns an old model into a modern work tool.
How long does it take to completely disassemble the Asus X751L?
For an experienced user, complete disassembly with cleaning and replacement of thermal paste takes about 30-40 minutes. A beginner may need 1-1.5 hours, as he will have to carefully study the instructions and carefully work with small parts.
Do I need to remove all the screws to access the radiator?
In most cases, it is enough to remove only the back cover. However, sometimes, in order to easily access the cooling system, you need to remove the keyboard and the top of the case, which complicates the process.
Is it possible to replace the processor in Asus X751L?
No, the processor in this model is soldered to the motherboard and cannot be replaced. An upgrade is only possible in terms of RAM and storage.
How to check the integrity of the cables after assembly?
After turning on the laptop, check the operation of the touchpad, keyboard and backlight. If something does not work, immediately turn off the device and check the connection of the corresponding cables.