How to update a bios?
What is a bios?
One of the most common uses of Flash memory is for the basic input/output system of your computer, commonly known as the BIOS .On virtually every computer available, the BIOS makes sure all the other chips, hard drives, ports and CPU function together. The BIOS contains all the technical information about key components of the computer like disk drives, keyboards and display settings. It also keeps track of the date and time.
Updating Your BIOS
Occasionally, a computer will need to have its BIOS updated. This is especially true of older machines. As new devices and standards arise, BIOS needs to be changed in order to understand the new hardware. Since the BIOS are stored in some form of ROM, changing it is a bit harder than upgrading most other types of software.
To change the BIOS itself, you'll probably need a special program from the computer or BIOS manufacturer. Look at the BIOS revision and date information displayed on system startup or check with your computer manufacturer to find out what type of BIOS you have. Then go to the BIOS manufacturer's Web site to see if an upgrade is available. Download the upgrade and the utility program needed to install it. Sometimes the utility and update are combined in a single file to download. Copy the program, along with the BIOS update, onto a floppy disk. Restart your computer with the floppy disk in the drive, and the program erases the old BIOS and writes the new one. You can find a BIOS Wizard that will check your BIOS at BIOS Upgrades.
Major BIOS manufacturers include:
•American Megatrends Inc. (AMI)
As with changes to the CMOS Setup, be careful when upgrading your BIOS. Make sure you are upgrading to a version that is compatible with your computer system. Otherwise, you could corrupt the BIOS, which means you won't be able to boot your computer. If in doubt, check with your computer manufacturer to be sure you need to upgrade.
In recent years some computers required BIOS updates to make them better operate with plug and play features built into Windows. BIOS updates were also required to accommodate larger hard drives.
To do a BIOS upgrade you need to figure out where to get a BIOS update program. Most computer makers such as IBM, Dell, Compaq and Packard Bell have these updates on their web sites. As with most PC maker sites, you need to sign up for free, to get access to the system updates. The site requires that you enter a five-digit Zip code. The BIOS updates are generally downloadable from these sites. Once downloaded to your hard drive, run the update program and you may be prompted to create a floppy disk, which can then be used to update the . In the event that your PC maker won't provide a BIOS update, you can often acquire one from the motherboard maker. You'll have to figure out what brand and model of motherboard is in the system that you have to update. A manual for the motherboard is usually included with the system's documentation.
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