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General Computer Basic Input/Output System Overview
Article ID: 299697 - View products that this article applies to.
This article was previously published under Q299697
If this article does not describe your hardware-related issue, please see the following Microsoft Web site to view more articles about hardware:
Because this information is directly related to hardware and not Microsoft software, this information is being provided for informational purposes only. If this information does not help you to identify information about your specific basic input/output system (BIOS), contact the manufacturer of your computer.
What Is a BIOS?The BIOS is created by a motherboard or hardware manufacturer. The BIOS is what starts the computer after you turn on the power to your computer. Software programs, such as the Windows operating system, work with the BIOS to make your computer more user friendly.
Who Makes the Motherboard?To determine the manufacturer of your motherboard, view the documentation that was included with your computer. Most computers include a manual for the motherboard, and this manual is typically the best source of information about your hardware, motherboard, and BIOS. If you do not have this manual, contact the manufacturer of your computer to determine the manufacturer of your motherboard. Lastly, if you cannot determine the name of the manufacturer of your motherboard by using the preceding methods, note that most manufacturers display BIOS information on the screen when you start your computer during the Power On Self Test (POST). However, there is no standard as to where or when the information is displayed. Generally, this information is displayed while the memory is being counted and tested. Note that this information may appear anywhere on the screen, and this is determined by the manufacturer's design. For example, American Megatrends Inc. almost always displays BIOS information at the bottom of the screen in the form of a very long string of numbers. Award, another BIOS manufacturer, usually displays BIOS information near the top of the screen with the Award logo.
To find BIOS information:
How Do I Determine Who to Contact About an Upgrade?Now that you have the BIOS information, the next step is to view the manufacturer's Web site and search for information about the specific motherboard or BIOS. If you are unable to locate the manufacturer's Web address, you may be able to find the information on one of the following third-party Web sites:
http://www.wimsbios.com/Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.
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Is a BIOS Upgrade Available?After you find the manufacturer that provided the BIOS code, the next step is to determine whether the BIOS can be upgraded. Unless you are very certain that your BIOS needs to be updated, check with your hardware manufacturer. If you improperly flash (update) your BIOS, you may be unable to start your computer, and this may result in data loss or other problems.
Is a BIOS Upgrade Necessary?Even if you determine that your computer has an outdated BIOS, it is important to note that an updated BIOS may not resolve a software problem. To determine if you need a BIOS upgrade, you must consult the hardware manufacturer.