Many users are faced with a situation where the laptop screen fails, but the motherboard and processor itself continue to work properly. It’s a shame to throw away working hardware, and buying a new monitor is an additional expense. The way out of this situation will be to transform the device into a desktop computer, resembling a candy bar in appearance.
There are several approaches to solving this problem, from simple and quick to complex ones that require soldering and electronics skills. The choice of method depends on how much time you are willing to spend, what budget to allocate and how aesthetic the result you want to get. In this article, we will analyze all the available options so that you can choose the best upgrade path.
Method One: Using an Adapter and an External Stand
The easiest way, which does not require disassembling the case, is to attach the laptop to the screen using a special adapter. In electronics stores you can find mounts that allow you to install laptop directly to the back panel monitor. This creates the effect of a candy bar, where the screen and the system unit are in a single plane.
To implement this, you will need to find a universal mount with a VESA-compatible interface. Many modern monitors have holes for mounting on a wall or bracket, making the task easier. You will only need to secure the laptop so that its keyboard is hidden and the screen is centered with the monitor display.
However, this method has a significant drawback. The dimensions of the resulting design will be significantly larger than that of a real candy bar due to the thickness of the laptop case. Additionally, ports may be difficult to access and the cooling system may be less efficient due to limited space.
- 🛠️ Quick installation without soldering or complicated tools
- 💰 Minimum financial costs for the adapter
- ⚠️ Increased thickness of the structure
Method two: replacing the case with a monoblock chassis
A more advanced option involves a complete reassembly. You will need to extract motherboard, storage and cooling system from the original case. After this, the components are installed in a special adapter case designed to turn the laptop into an all-in-one PC. These chassis often have built-in mounts for larger screens.
The process requires care and attention when disconnecting the loops. It is important not to damage the display and touchpad connectors, as they are quite fragile. If you plan to use the keyboard and touchpad from your old laptop, they will also need to be carefully transferred to the new configuration.
This method allows you to get a more aesthetic result, close to factory products. However, it is worth considering the compatibility of components. Not all motherboards have standard mounting plates, and sometimes you have to use adapter plates or even make them yourself from metal or plastic.
- 🔧 Full customization of appearance
- 🖥️ Ability to use any monitor
- 📉 Electronics disassembly and assembly skills required
- Easy to mount
- Complete rebuild
- Buying a new PC
- Not sure it will work
Technical nuances of connecting a display
One of the main problems when creating a candy bar is connecting the screen. Laptops use an LVDS or eDP interface, which is different from the standard HDMI or DisplayPort used in monitors. For the screen to work, a special conversion controller is required.
This controller is a small board that connects to the laptop matrix on one side and to the HDMI port on the other. When purchasing such a board, it is important to know exactly the model of the matrix, since connectors and pinouts may differ even for visually identical screens. An error in selecting a controller will result in the display not displaying an image.
Some enthusiasts prefer to use external VESA-mounted monitors by connecting them directly to the laptop's graphics card. This eliminates the need to fiddle with controllers, but requires that your laptop has a full video output that does not turn off when the lid is closed (the "clamshell mode" function).
⚠️ Attention: When connecting the matrix controller, make sure that the supply voltage meets the requirements of your specific screen model. Incorrect voltage can instantly burn out the backlight or the matrix itself.
Catering and management
A standard laptop power supply usually has a round plug, which may be inconvenient for stationary use. You can replace it with a more reliable connector or even install a power button directly into the body of the new all-in-one. To do this, you will need to resolder the power button on the motherboard or use an external switch.
It is important to organize high-quality ventilation. In a closed case without ventilation, components can overheat. Make sure that the coolers are not blocked by the walls of the new chassis. If the case is metal, it can work as a heatsink, but a good heat sink paste is required.
It is also worth considering the issue of cable management. All power cords, USB cables and display cables must be neatly laid out. Use zip ties and heat shrink tubing to hide excess tails and prevent them from being accidentally removed or damaged.
- 💡 Installing the power button in the case
- 🌡️ Temperature control
- 🔌 Convenient organization of wires
☑️ Preparation for reassembly
Comparison of modernization methods
To choose the best option, we compare the main parameters of different approaches. A simple mount wins in speed and cost, but loses in aesthetics and compactness. Complete reassembly requires time and skill, but gives a result that is as close as possible to an industrial monoblock.
Using an external monitor is a compromise option that works if you already have a quality display. It eliminates the hassle of matrix controllers, but keeps the laptop as a separate unit, which isn't always desktop-friendly.
| Method | Difficulty | Cost | Aesthetics | Dimensions |
|---|---|---|---|---|
| Stand Mount | Low | Low | Average | Large |
| Complete rebuild | High | Average | High | Compact |
| External monitor | Low | Average | Low | Various |
| Adapter housing | Average | High | High | Compact |
What to do with extra parts?
An old laptop case can be used as a storage case, disassembled for spare parts (keyboard, touchpad) or sold at a dismantling station as a donor.
Software system setup
After physical assembly, you need to configure the software. In Windows or Linux, you need to enable the lid close mode so that the laptop does not go into sleep mode when closed. This is done in the power settings: Control panel → Power → Action when closing the lid.
It is also worth checking the operation of sleep mode and hibernation. In some cases, when the display is reconnected, the system may not correctly determine the resolution. In this case, you will need to manually set the necessary parameters in Display settings or through the video card driver.
If you used an external matrix controller, make sure it detects the refresh rate correctly. Sometimes standard drivers may not support specific controllers, and they will have to be downloaded from the board manufacturer’s website.
⚠️ Attention: If you plan to use your laptop as a server or media center 24/7, be sure to disable the automatic sleep function in the BIOS so that the system does not interrupt the work on a timer.
Before final assembly of the case, turn on the laptop and check the operation of all ports, Wi-Fi and Bluetooth to make sure that nothing will interfere with the connection of peripherals when installed in the new case.
Safety and Operation
When operating a homemade monoblock, pay special attention to ventilation. Laptop components are designed for a certain air circulation, which can be disrupted by a new case. Regularly clean the cooling system of dust, as it clogs faster in a confined space.
Also pay attention to the rigidity of the structure. The laptop is not designed to have its screen constantly in a vertical position under load. Make sure that the fastenings are secure and that the display does not bend under its own weight, otherwise this will lead to cracks on the matrix.
Remember fire safety. If you changed the power connector or soldered buttons, check the quality of the soldering. Poor contact may cause heating and fire. Use quality insulating materials for all exposed contacts.
- 🔥 Regular dust cleaning
- 🛡️ Checking the reliability of fastenings
- ⚡ Soldering quality control
The main secret to success is careful preparation and checking the compatibility of all components before final assembly of the case.
Alternative Uses
If the task of making a full-fledged all-in-one computer seems too difficult, consider using a laptop as a media center. In this case, it can be installed under a table or in a niche, and controlled from a tablet or smartphone. This reduces the requirements for ergonomics and appearance.
Another option is to create a terminal for a smart home or slot machine. In such cases, the laptop is often disassembled to a minimum, leaving only the board, screen and controls. This allows the device to be integrated into furniture or special panels, creating a unique interior element.
FAQ: Frequently asked questions
Is it possible to use an old computer monitor instead of a laptop screen?
No, you cannot directly connect the monitor from your computer to the laptop motherboard. They have different video and power transmission interfaces. The laptop is designed to work with the matrix via LVDS/eDP, and the monitor requires HDMI/DisplayPort/VGA.
What voltage is needed for the matrix controller?
Most laptop controllers operate on 12 Volts, but there are 5V or 19V models. Be sure to look at the markings on the controller board itself or in the specification for it before connecting the power supply.
What to do if the keyboard stops working after reassembly?
Most likely, the keyboard cable was damaged or the connector on the motherboard was not inserted tightly. Check the cable connection and make sure that the locking lock on the connector is closed until it clicks.
Do I need to reinstall Windows after rebuilding?
Usually no reinstallation is required since the motherboard remains the same. However, if you have changed the video card (external) or controllers, you may need to update the drivers.
Is it possible to make a monoblock without a laptop power supply?
Theoretically, you can use an external power supply with other parameters if it is suitable for voltage and current, but this is risky. It is better to use a standard unit or a high-quality analogue with the same characteristics.