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Motherboard component and common issues that determine motherboard problem


To determine motherboard problem of the laptop is very tricky. Before analyzing the motherboard problem, knowledge of the basic components of the motherboard and its functions is essential.

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Laptop Motherboard

Determine Motherboard Problem

The components of motherboard


Motherboard Microprocessor is controlling all operations and responsible for fetching, decoding and executing program instructions as well as performing mathematical and logical calculations. The microprocessor is connected with the motherboard by the CPU socket.


Random Access Memory (RAM) is volatile that temporarily store dynamic data to enhance Computer performance but it loses its content when power is turned off.


The Basic Input/ Output System is the low-level software that links between computer hardware and software in a system. The system BIOS is stored on ROM chip as ROM retains information even when power is suspended.

CMOS Battery

The CMOS is a separate block of memory and is used to store basic information about computer configuration i.e. CPU information, plug and play information, serial and parallel port information, date and time, RAM size, etc. CMOS battery requires very little power to operate.

Expansion slot

The expansion bus is made up of a series of slots on the motherboard. Expansion cards plug into the bus. Buses carry signals like data, memory address, power and control signals among different components. Users can add adapter cards into expansion slots for adding extra features.


A chipset is a group of circuits that controls data flow to and from hard disks and other devices connected to the IDE channels. There are two main chipsets.

The Northbridge – It is the memory controllers that controlling transfers charge between the processor and the RAM. It is also called Graphics and Memory Controller Hub (GMCH).

The SouthBridge – It controls communications between slower peripheral devices which connects two buses.

CPU clock

The CPU clock synchronizes the operation of all parts of the PC and provides the basic timing signal for the CPU.

Determine Motherboard Problem

To determine the motherboard problem, there are a series of the test is to be performed.  If your laptop will not booting at all, it could be because of a faulty motherboard. There are other factors also that may happen due to the motherboard problem. Here is the list of indications of motherboard problems i.e. Laptop begins to boot up very slowly, the laptop is stopped booting, the monitor is flickering, lines on the screen or unexpected freezes, plug and play devices fail to initialize, “blue screen of death” errors, melted plastic smell emits from the laptop.

Lenovo Laptop Service Center in Kolkata
Lenovo Laptop Service in Kolkata

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 and save your money.  

If you do need to replace a motherboard, it’s essential to check it’s compatible with your laptop’s existing hardware. In order to check the compatibility of the motherboard with your laptop, visit the manufacture’s website and check the compatibility. Incompatible motherboard replacement can damage your other peripheral devices. In these circumstances, you probably lost your valuable data permanently. This is why, if your computer does have motherboard problems, it’s really important to go with a reputable service center. The experienced technicians of Lenovo Laptop Service Center in Kolkata will repair faulty laptop motherboards or replace the faulty motherboard with a new one. If you would like to service your laptop from the best laptop service center visit Lenovo Laptop Service Center in Kolkata or call us, at 9051477407

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