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How To Identify BIOS Chip On Motherboard?

In this article, we will look at a quick and easy way to find the BIOS chip on your motherboard. The BIOS chip, a critical component responsible for launching your computer and regulating hardware, is frequently found near the CPU or memory slots.

To find it, look for a small, rectangular integrated circuit (IC) labelled “BIOS” or “UEFI” at the motherboard’s centre. Identifying this chip might help you update the firmware or solve difficulties with your computer’s startup procedure. Let’s go into the specifics of this simple identification method.

Understanding the Meaning of BIOS

BIOS stands for “Basic Input/Output System.” It is a fundamental firmware embedded in a computer motherboard. The BIOS serves as the bridge between the hardware components and the operating system.

During the computer’s startup, the BIOS performs a Power-On Self-Test (POST) to ensure hardware integrity and then loads the operating system into memory.

Additionally, the BIOS provides access to various system settings, such as boot order and hardware configuration, making it a critical component in the functioning of a computer system.

Understanding the significance of BIOS as a “Basic Input/Output System” sheds light on its critical role during a computer’s startup process.

When a computer is turned on, the BIOS program starts up and performs critical operations such as hardware checks, loading the operating system, and enabling communication between hardware and software.

The computer could not start up properly without the BIOS, making it a critical component for the system’s proper operation.

Understanding BIOS as “the first operating system that talks directly to the hardware” aids in understanding its critical function in computer booting.

BIOS initializes and configures hardware components during system startup before passing control over to the primary operating system. This direct contact assures hardware compatibility and sets the foundation for the computer’s flawless operation.

Recognizing this essential component of BIOS provides a clear understanding of its importance in the entire computer architecture.

It is critical to understand the definition of BIOS as a “Basic Input/Output System” and its permanent storage in a chip. The BIOS is stored on the motherboard in a non-volatile memory chip, generally an EEPROM or flash memory.

This durability ensures that the BIOS settings and firmware are preserved even when the machine is turned down. This intrinsic feature of BIOS allows it to initialize hardware components and speed up the boot-up process every time the computer is turned on, making it a key component for system operation.

Identifying of Bios Chip on the Motherboard

There are Two Ways to Identify Which:

1. Using the Motherboard Manual

Follow these procedures to locate the BIOS chip on the motherboard using the motherboard manual:

  1. Locate and obtain the motherboard manual: Locate and obtain the motherboard manual. If you don’t have a physical copy, you can typically find it by searching for your motherboard model on the manufacturer’s website.
  2. Locate the motherboard layout diagram: A motherboard layout diagram that provides an overview of all the essential components and connectors should be included in the instructions.
  3. Look for the BIOS chip: Scanning the diagram for a labelled component connected to the BIOS is a good place to start. It is frequently referred to as “BIOS,” “UEFI,” or “BIOS Chip” and is symbolized by a little rectangle with pins on the sides.
  4. Examine the surroundings: The BIOS chip is usually found at the centre of the motherboard, near the CPU or memory slots. It is generally close to other critical chips and components.
  5. Verify the label: Once you’ve located the probable BIOS chip, cross-reference its location with any neighboring text or labels to ensure it’s the BIOS chip.

2. Through Physical Inspection

Physically inspecting the motherboard to identify the BIOS chip is a simple process. Take the following steps:

  1. Find the Motherboard: Open your computer case and look for the motherboard, which is the large circuit board that connects all of the components.
  2. Check Around the CPU or Memory Slots: The BIOS chip is typically found near the CPU socket or memory slots. It is a tiny, rectangular integrated circuit (IC) with a number of pins.
  3. Look for labels BIOS chips, as you indicated, may feature labels such as “M_BIOS,” “UEFI,” “BIOS,” or other versions. Look for any indications of the BIOS function.
  4. Confirm with the motherboard manual: If you have the motherboard manual, it may contain detailed information regarding the BIOS chip’s location and labelling.

Why Do Some of the Motherboards Have Two Bios Chips?

For redundancy and reliability, some motherboards contain two BIOS chips. The primary BIOS chip, commonly referred to as “M_BIOS,” serves as the Main BIOS chip, handling the routine startup procedure and system operations. If the primary BIOS becomes corrupted as a result of a failed update or other issues, the secondary BIOS, known as “B_BIOS,” serves as a backup.

When a problem with the Main BIOS is detected during boot-up, the motherboard immediately changes to the Backup BIOS, guaranteeing that the machine stays functioning. This function adds an extra layer of protection against potential BIOS failures, allowing users to recover and repair any problems with the Main BIOS later.

Some motherboards have two BIOS chips as a failsafe measure to ensure system stability. Users can change the BIOS stored in the main BIOS chip, which stores user preferences and settings. However, corruption or unintentional modifications may occur during the BIOS update process or when changing settings, which could render the machine unbootable. To remedy this, motherboards have a backup or redundant BIOS chip, sometimes called a secondary BIOS chip. Unless the primary BIOS finds a problem, this secondary chip remains undisturbed. If the primary BIOS fails, the system switches to the secondary BIOS, avoiding potentially catastrophic failures. Multiple BIOS chips give extra security and allow users to recover quickly from significant BIOS-related mistakes.

BIOS Chip On Motherboard – FAQs

1. Is the bios chip removable?

Ans: Yes, many motherboards have a detachable BIOS chip. It should be noted, however, that not all motherboards include replaceable BIOS chips. The BIOS chip on some recent motherboards is soldered directly into the motherboard, making it non-removable.

2. Can a Bios chip be replaced?

Ans: A BIOS chip can, in fact, be replaced. If the BIOS chip is replaceable and becomes damaged or has to be updated, it can be replaced to restore or improve system operation. It is critical to utilize a suitable BIOS chip and follow proper replacement procedures.

3. How can I reset my bios chip?

Ans: Locate the CMOS jumper on the motherboard to reset the BIOS chip. Turn off the computer, move the jumper to the “Clear” position, wait a few seconds, and then return it to its original position. Alternatively, you can remove and reinsert the CMOS battery for a few minutes.

4. What is the name of the Bios chip?

Ans: The BIOS chip is commonly known as the “BIOS ROM” or “BIOS firmware chip.”


Finally, the availability of twin BIOS chips in some motherboards provides substantial benefits in terms of system dependability and user peace of mind. The primary BIOS chip, which stores user preferences and settings, can be easily modified by users to customize their system.

However, the potential for corruption or unintentional modifications during BIOS updates needs a failsafe solution. The secondary BIOS chip acts as a backup, remaining unchanged until the first BIOS fails. This redundancy ensures that if any problems emerge, the system may effortlessly switch to the alternative BIOS, avoiding potential calamities. Dual BIOS chips add an extra layer of security, ensuring users of a reliable and recoverable system even in the face of BIOS-related issues.

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