Laptop Motherboard Diagram - Main Control System (2023)

Are you looking for a laptop motherboard diagram? Here you will find diagram details, tips and frequently asked questions about laptop motherboards. We created this page for people looking for laptop motherboard diagram. Our information will help you to solve your problem.

A wiring diagram shows where the wires need to be connected, eliminating any uncertainty.

You can avoid mistakes by using a schematic to figure out which wires go where. No need to guess if you have a schematic as it will surely show exactly where the wires need to be connected.

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Check out the pictures of the laptop motherboard diagrams below

(Video) Laptop Schematics - Learn How to Read Motherboard Schemes

Laptop Motherboard Diagram - Main Control System (1)
Laptop Motherboard Diagram - Main Control System (2)

Tips for DIY electrical wiring and circuit

People build their own homes for a variety of reasons. Whether they want to save money, feel more independent, or just like to fix things themselves, any home improvement job requires some basic knowledge to be successful. Adjusting or replacing electrical switches and wiring is no exception. These DIY electrical wiring suggestions can help to simplify the installation of electrical wiring and switches, especially for DIY enthusiasts.

1. Have the right tools on hand

As with any other home improvement task, you want to have the right tools to get the job done. They may include a multimeter, a non-contact voltage tester (checks the wire for heat without touching it), and a combination wire stripper. If you are armed with the right tools, you can be prepared for anything during the electrical switch wiring process.

2. Know your threads

The white wire is the neutral wire and goes to the neutral terminal marked with silver/clear screws. The black wire, on the other hand, is the hot wire and goes to the hot terminal opposite the neutral terminal.

Understanding the difference between wires will help you wire your house properly and avoid the high voltage that comes from switching neutral and hot.

3. Three inch ruler

It's always better to have too much yarn than too little. Wire extensions are offered if you cut them off at the end, but the wiring will work much better if it's undamaged.

As a general rule of thumb, the wiring should be long enough to run 3 inches outside the control box.

4. Hide drywall gaps with oversized boards

When setting up electrical switches, it's very easy to drill a really big hole in your drywall. The good news is that large panels are available at hardware stores to cover your switches with.

They are typically 3/4 inch wider and longer than regular switch plates. Many people won't be able to tell the difference unless they are professional electricians or other DIY enthusiasts.

(Video) Laptop Motherboard power sequence in detail with animation. Dhaka Lab and Institute.

5. High-quality switches and sockets pay off

While it can be tempting to save on some materials as a DIYer, switches and sockets are not among them. They tend to be a bit more expensive, but they also last longer. A good way to identify a quality switch or connector is to use a back wire feature.

6. Check the tension

Be sure to check the voltage of wires and circuits before touching them. Evaluating electrical parts with tools such as a wire finder or multimeter will tell you if they are safe to touch or if an electrical current will flow through them.

7. Do your research properly

In today's internet age, you can do everything online. Because of this, there is no reason not to do your research before installing electrical wiring and switches in your home.

Look for tutorials on wiring a light switch to learn more about how to do it. There are tons of DIY electrical wiring tutorials on YouTube written by electrical experts and DIY professionals that will literally show you how.

8. Check the terminal connections

Terminal connections are the end points of the wires where a connection is made to an external circuit. These are some of the more common connections, especially when working with outlets and switches. The end connections are heavily used and bad connections quickly come loose.

9. Get an education

As amazing as online learning is, it has its limitations and is not a substitute for a trade school program. Knowing how to do electrical work in an educational setting is the best way to ensure you know what you are doing in the DIY electrical wiring field.

Laptop motherboard schematic. | Circuit diagram, laptop

Laptop Motherboard Diagram - Main Control System (3)

Frequently Asked Questions

Where is a schematic used?

Schematics are mainly used when trying to uncover the system of connections in a circuit. It is mainly used by civil engineers, architects and electricians to show the wiring connections in a building, a room or even a simple device.

(Video) Laptop Motherboards course, quick tutorial/guide

Why is the schematic important?

It shows circuit parts as simplified shapes and how to make connections between devices. A schematic generally provides more information about the relative location and arrangement of devices and connectors on devices.

What should a schema consist of?

Wiring diagrams must include a full description and location of all building code items such as heating/ventilating/air conditioning (also known as HVAC), plumbing, and electrical systems. Schematic designs are just a basic template for interacting with a design plan with the owner.

Is AWG aluminum or copper?

The AWG standard consists of copper, aluminum and other wire products. Typical household copper wiring is 12 or 14 AWG. Telephone wire is usually 22, 24, or 26. The higher the gauge number, the smaller the size and the thinner the wire.

Can you touch a live black wire?

When you are in contact with a stimulated black wire and you are also in contact with the neutral white wire, current flows through your body. You will get an electric shock. You will get an electric shock if you touch 2 wires with different voltages at the same time.

Troubleshooting computer hardware and software - laptop motherboard

Troubleshooting computer hardware and software - laptop motherboard

Laptop Schematics ~ GIRIJESH CHAUBEY

Troubleshooting computer hardware and software - laptop motherboard

Are all schematics similar?

Circuit diagrams can meet different requirements depending on the country where they are used. They can have multiple designs depending on the company and designer who develops them. They can also be drawn using another ECAD software application such as EPLAN or AutoCAD Electrical.

(Video) Laptop motherboard major components names, circuit diagram & functions explained | CPU, GMCH, ICH

What is an Architectural Schematic?

Architectural circuit diagrams show the approximate locations and affiliations of outlets, lighting, and permanent electrical services in a structure.

How do you read circuit diagrams?

Schematics are read left to right or top to bottom. This is crucial to get it right as the direction of the signal will indicate the current flow in the circuit. It is thus easy for a user to understand when the course of the circuit changes.

How Are Electrical Wire Numbers Verified?

An electrical cable is classified by 2 numbers separated by a dash, e.g. B. 14-2. The first number indicates the strength of the conductor; the second represents the diversity of conductors within the cable. 14-2 has 2 14 gauge conductors: one hot and one neutral.

How do you read car wiring diagrams?

A vehicle wiring diagram is a map. To read it, identify the circuit in question and follow it from your power supply to the ground. Use the legend to understand what each circuit symbol means.

How to read wire size charts?

Wire gauges range from low numbers to high numbers, with smaller numbers referring to smaller sizes and larger numbers referring to larger sizes. For example, AWG 4 is 0.2043 inches in diameter and AWG 40 is 0.031 inches in diameter.

How is the line numbered?

American Wire Gauge (AWG) is the basic method of specifying wire size in North America. With AWG, the higher the number, the smaller the diameter and gauge of the wire. The largest basic size is 0000 AWG and 40 AWG is the smallest standard size.

What is the outline format?

A schematic or schematic diagram is a representation of the elements of a system using abstract graphic symbols instead of realistic images.

What should a schema consist of?

The drawings shall contain the full description and location of all aspects of the building code such as: such as heating/ventilating/air conditioning (aka HVAC), plumbing, and electrical systems. Schematic designs are just a basic template to communicate a schematic design to the owner.

(Video) How to Identify Components Motherboard using Schematics Diagram

Is AWG aluminum or copper?

The AWG requirement consists of copper, aluminum and other wire materials. Common household copper wire is 12 or 14 AWG. Telephone wire is typically 22, 24, or 26. The higher the gauge number, the smaller the size and the thinner the wire.

Can you touch a live black wire?

When you come into contact with both a live black wire and a neutral white wire, electricity flows through your body. You will get an electric shock. You will get an electric shock if you touch 2 wires with multiple voltages at the same time.


What is the motherboard of a laptop? ›

The motherboard is the backbone that ties the computer's components together at one spot and allows them to talk to each other. Without it, none of the computer pieces, such as the CPU, GPU, or hard drive, could interact. Total motherboard functionality is necessary for a computer to work well.

What does an electrical schematic not show? ›

The schematic diagram does not show the practical connection between the components or their position. It contains only symbols and lines. A wiring diagram is a generalized pictorial representation of an electrical circuit. The components are represented using simplified shapes in wiring diagrams.

Where is the motherboard located in a laptop? ›

Where is the motherboard located? A computer motherboard is located inside the computer case and is where most of the parts and computer peripherals connect. With tower computers, the motherboard is on the left or right side of the tower and is the biggest circuit board.

What are the main parts of motherboard? ›

A typical motherboard contains the CPU, memory, storage, ROM BIOS, Southbridge and Northbridge chipsets, cooling fans, peripheral connector slots, connectors for peripheral devices, the battery backup and the power connector.

What are the 6 main parts of a motherboard? ›

The motherboard accommodates the central processing unit (CPU), random access memory (RAM), expansion slots, heat sink and fan assembly, basic input/output system (BIOS) chip, chipset, and the circuitry that interconnects the motherboard components.

What are the three 3 types of schematic diagram? ›

Types of Electrical Diagrams or Schematics

They are wiring, schematic, and pictorial diagrams.

What is basic schematic diagram? ›

What is a schematic diagram? The word “schematic” means a plan, outline, or model. So a schematic diagram is a graphical representation of a plan or a model that is presented in a simple, accessible way. Schematics use simple lines and symbols to communicate information such as what, how, and where.

How do you read a control circuit diagram? ›

The electrical schematics are read from left to right or from top to bottom. This is important to get right, as the signal direction indicates the flow of current in the circuit. It is then easy for a user to understand when there is a change in the course of the circuit.

What are the 4 types of electrical diagrams? ›

6.2: Types of Electrical Diagrams
  • Schematic Diagrams.
  • Wiring diagrams.
  • Block diagrams.
  • Pictorial diagrams.
Sep 11, 2021

What is the difference between a schematic and a diagram? ›

A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components of the circuit as simplified standard symbols; both types show the connections between the devices, including power and signal connections.

What is the difference between a wiring diagram and a schematic? ›

A schematic shows the plan and function for an electrical circuit, but is not concerned with the physical layout of the wires. Wiring diagrams show how the wires are connected and where they should located in the actual device, as well as the physical connections between all the components.

What causes the motherboard to stop working on laptop? ›

Causes of Motherboard Failure:

Dust particles, smoke, debris, etc. Liquid damage. Overheating caused my fan failure. Physical damage.

Can a laptop be fixed if the motherboard is damaged? ›

Most motherboards can be repaired and it's cheaper than replacing the entire motherboard or buying a new laptop. Each malfunction laptop's motherboard has to be diagnosed carefully by a competent technician with considerable experience and it should be done only in a professional laboratory.

What happens to laptop if motherboard is not working? ›

The motherboard is the computer, so the usual symptom of a failed motherboard is a completely dead system. Fans, drives, and other peripherals may spin up if the motherboard is dead, but more often nothing at all happens when you turn on the power. No beeps, no lights, no fans, nothing.

What are the 7 parts of motherboard? ›

Components of Motherboard
  • Keyboard and mouse. There are mainly 2 types of mouse and keyboard connectors. ...
  • Universal Serial Bus (USB) The USB port is used for connecting the computer system. ...
  • Parallel port. ...
  • CPU chip. ...
  • RAM slots. ...
  • Floppy Controller. ...
  • IDE controller. ...
  • PCI slot.

What are the 3 most important parts of a motherboard? ›

Numerous major components, crucial for the functioning of the computer, are attached to the motherboard. These include the processor, memory, and expansion slots.

What are the three main functions of a motherboard? ›

Description of Motherboard

It provides a single socket for CPU, whereas for memory, normally one or more slots are available. Motherboards provide ports to attach the floppy drive, hard drive, and optical drives via ribbon cables. Motherboard carries fans and a special port designed for power supply.

What are the 10 major hardware components of a computer system? ›

What are basic components of computer hardware?
  • Central processing unit (CPU) The CPU controls the computer processes and communicates with the other components of a personal computer. ...
  • Motherboard. ...
  • Random Access Memory (RAM) ...
  • Video graphics array port. ...
  • Power supply. ...
  • Cooling fan. ...
  • Hard drive. ...
  • Monitor.
Aug 4, 2021

What are the 12 parts of motherboard? ›

Motherboard Diagram
1. CPU socket2. Chipset3. DIMM/RAM slots
4. PCIe x16 slot5. PCI x1 slot6. M.2 connector
7. SATA ports8. Front panel connectors9. USB 2. header
10. USB 3.1 Gen1 header11. USB 3.1 Gen2 header12. ATX power connector
13. CPU power connector14. BIOS chips15. CMOS battery
2 more rows
Jun 27, 2018

What is control circuit diagram? ›

Also known as a ladder diagram. In contrast to the Power Circuit, the Control Circuit consists of inputs, in the form of switches, pushbuttons or pilot devices, which when activated, can either directly, or through a magnetic motor starter, energize a load.

What are the main types of diagrams? ›

11 diagram types
  • Mind map. A mind map is a diagram with one central idea in the middle surrounded by branches of supporting ideas, or nodes. ...
  • Quadrant chart. ...
  • Venn diagram. ...
  • Circle diagram. ...
  • Tree diagram. ...
  • Pyramid chart. ...
  • Funnel chart. ...
  • Roadmap.
Apr 14, 2022

What are the 3 main functions of electrical drawings? ›

An electrical drawing is a type of technical drawing that shows information about power, lighting, and communication for an engineering or architectural project.

What is schematic system model? ›

Schematic models provide a means of visualizing system structure and operation without immediately trying to mathematically represent the system. Such schematic models can reveal redundancies and system weaknesses that can be corrected without extensive formal analysis.

What is schematic diagram in PCB? ›

The PCB schematic, then, is the first part of designing a printed circuit board. It's a pictorial representation, either written or on a computer, that utilizes agreed-upon symbols to describe circuit connections. It also indicates the components that will be used and how they are connected.

What are the 3 types of wiring connection? ›

5 Different Types of Electrical House Wiring Systems
  • Cleat Wiring. This wiring comprises of PVC insulated wires or ordinary VIR that are braided and compounded. ...
  • Casing and Capping Wiring. ...
  • Batten Wiring. ...
  • Lead Sheathed Wiring. ...
  • Conduit Wiring.

What does C mean on wiring diagram? ›

WHAT IS A C-WIRE? A C-wire, or a common wire, runs from your low voltage heating system (24v) and carries continuous power to your thermostat. In today's electric market, most newer heating and cooling systems have C-wires, which guarantees compatibility for the installation of all smart thermostats.

What do circuit symbols mean? ›

Circuit symbols and names are small images that represent an electrical or electronic device or function. Circuit symbols and names are used for creating diagrams. And these diagrams show how a circuit is connected. They are essential in designing circuits or making printed circuit boards for a project.

What are the 5 parts of a electrical system? ›

Switch. Transformer. Electrical Wires & Power Cables. Battery.

What is the main function of diagrams in electronics? ›

A circuit diagram is a simplified representation of the components of an electrical circuit using either the images of the distinct parts or standard symbols. It shows the relative positions of all the elements and their connections to one another. It is often used to visually represent the circuit to an electrician.

What are the most common used electronic diagrams? ›

  • Ladder or Line Diagram. Ladder or Line Diagram. A ladder or line diagram is a diagram that shows the function of an electrical circuit using electrical symbols. ...
  • Wiring Diagram. Wiring Diagram. ...
  • One-Line Diagram. One-line diagram or Single-line Diagram.

What is a logic diagram? ›

logic diagram (plural logic diagrams) A diagram in the field of logic. Any non-spatial, abstract diagram. Any schematic display of the logical relationships of project activities. A graphical representation of a program using formal logic.

What is the name of circuit diagram? ›

A circuit diagram (wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit.

Why is it important to read a schematic diagram? ›

The main purpose of a schematic diagram is to emphasize circuit elements and how their functions relate to each other. Schematics are an extremely valuable troubleshooting tool that identify which components are in series or parallel and how they connect to one another.

What are the two basic types of electrical diagrams? ›

They are wiring, schematic, and pictorial diagrams. The two most commonly used are the wiring diagram and the schematic diagram. The uses of these two types of diagrams are compared in Table 1. The pictorial diagram is usually not found in engineering applications for the reasons shown in the following example.

Can wires cross in a schematic? ›

Older electrical schematics showed connecting wires crossing, while non-connecting wires “jumped” over each other with little half-circle marks. Newer electrical schematics show connecting wires joining with a dot, while non-connecting wires cross with no dot.

What is schematic and PCB design? ›

A PCB design schematic can be described as a circuit diagram or the functional diagram of electronic circuits. Symbols are used to represent components and show how they are connected electrically. This graphical representation of the electronic circuit is created before the actual design layout of the circuit.

What are the two most common causes of motherboard issues? ›

4 Common Computer Motherboard Problems and Solutions
  • Check the power. If your computer doesn't turn on or if it turns off randomly, you may be experiencing power issues. ...
  • Overheating. ...
  • Incorrectly installed components. ...
  • A short circuit.
Jan 13, 2023

Does replacing a motherboard erase the OS? ›

In the event your computer requires a motherboard replacement, all data stored locally on your computer will be lost and will no longer be recoverable.

What are the symptoms of failing motherboard? ›

Common symptoms of motherboard issues are similar to CPU problems: The system does not display anything; an error code appears; one or more beeps occur; the system locks; the system reboots; a Windows BSOD (blue screen of death) appears; or one or more of the ports, expansion slots, or memory modules fails.

How much does it cost to repair a laptop motherboard? ›

The motherboard is considered the most expensive and essential hardware of a laptop, and it generally comes under a price of about rupees 2500 to rupees 15000 for a laptop.

Does Best Buy Replace laptop motherboards? ›

Please visit to set up a free consultation at your local Best Buy. A: Yes, the Geek Squad crew are able to remove and replace most hardware down to the modular component level, (motherboard, hard drive, power supply, cpu, ram) as long as the parts are not too outdated.

Is it worth repairing a laptop motherboard? ›

Not at all. Since the motherboard being a key and an expensive component, replacing it would cost you a lot of money which can either be used to buy another new laptop or build a desktop pc which could potentially be worth of the upgrade. If you have to ask this question, go buy a new laptop.

How do I know if my motherboard is fried? ›

Smelling smoke or seeing charred circuitry are obvious signs, but also examine the capacitors, which are cylindrical in shape and placed in various locations on the board. Their job is to filter the electricity going to various components on the board, and power surges or overheating can damage them.

Can you replace a motherboard without replacing anything else? ›

Do I need a new operating system if I change my motherboard? It depends. You can upgrade the motherboard and CPU without reinstalling Windows 10 operating system. But if the new motherboard shows compatibility issues with your old OS, you may also need to replace the operating system.

How do you diagnose a motherboard problem? ›

Visual hardware check

The first thing to do is a visual check of the motherboard. A common cause of motherboard issues or failure is bulged or blown capacitors. Check the top of each capacitor to see if it's bulging or leaking, an indication the capacitor is blown.

What if motherboard of laptop is damaged? ›

The motherboard is the computer, so the usual symptom of a failed motherboard is a completely dead system. Fans, drives, and other peripherals may spin up if the motherboard is dead, but more often nothing at all happens when you turn on the power. No beeps, no lights, no fans, nothing.

How much does it cost to replace a motherboard on a laptop? ›

We found this “Ask a Geek” article from a year and a half ago that says you should expect to pay anywhere from $250 to $500 for a new motherboard, but that's including the cost of the motherboard, a new operating system license to replace the one your computer came with (which likely is not licensed to work on the new ...

Can you fix a laptop motherboard? ›

Many laptop owners assume they need to buy a new laptop when this happens. But there are many circumstances where a motherboard can simply be repaired. In other cases, you may be able to replace the motherboard without replacing your other components, saving yourself a lot of money in the process.

What causes laptop motherboard failure? ›

Causes of Motherboard Failure:

Dust particles, smoke, debris, etc. Liquid damage. Overheating caused my fan failure. Physical damage.

Does replacing motherboard erase laptop data? ›

In the event your computer requires a motherboard replacement, all data stored locally on your computer will be lost and will no longer be recoverable.

What are the signs of motherboard failure? ›

Common symptoms of motherboard issues are similar to CPU problems: The system does not display anything; an error code appears; one or more beeps occur; the system locks; the system reboots; a Windows BSOD (blue screen of death) appears; or one or more of the ports, expansion slots, or memory modules fails.

What are the signs of bad motherboard? ›

The computer may start to boot but then shuts down. Increased Windows errors or "blue screens of death" are symptoms of failing motherboards. The computer may freeze for seemingly no reason, or connected devices that worked before suddenly won't work.

What is the life of laptop motherboard? ›

If treated well and kept clean, a motherboard can last for up to 20 years or even more. What you'll find is that the hardware available to that motherboard becomes obsolete, and you may need to upgrade to the latest hardware, but the motherboard itself should continue working just fine.

Is it cheaper to repair or replace a laptop? ›

Unfortunately, repair expenses can sometimes exceed the cost of a new, better-functioning option. A good rule of thumb to follow is — if the cost of repairs is more than 50% of the cost of a new laptop, consider getting a new device. And sometimes, it's just time for an upgrade.

Will I need to reinstall Windows if I replace my motherboard? ›

If you make significant hardware changes on your device, such as replacing your motherboard, Windows will no longer find a license that matches your device, and you'll need to reactivate Windows to get it up and running.

Should I repair or replace motherboard? ›

Suppose only the Motherboard is damaged due to some physical impact such as a liquid spill or electrical damage. In that case, replacing it will be a better option. The technical experts at Laptop Repair World will review the damage and give expert advice on the best solution.

What kills laptop motherboard? ›

The primary reason for motherboard damage is overheating, particularly because laptops have small cases with tightly packed components. Excessive heat can wear down various hardware components on the motherboard, resulting in complete failure.

How do I check my laptop motherboard for faults? ›

Shine a flashlight on the motherboard and check for broken onboard chips, damaged capacitors (which look similar to an AA battery), burnt traces (the lines traveling along the surface of the board), or cracks or fractures in the board itself. If the motherboard has incurred physical damage, it must be replaced.


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