When a BIOS Update Is Necessary
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The following list shows the primary benefits of a ROM BIOS upgrade:
- Adds LS-120 (120MB) floppy drive support (also known as a SuperDisk drive)
- Adds support for other ATAPI removable drives, such as Iomega Zip drives
- Adds support for hard drives greater than 8.4GB
- Adds support for Ultra-DMA/33, UDMA/66, UDMA/100, or faster IDE hard drives
- Adds support for bootable ATAPI CD-ROM drives (El Torito)
- Adds or improves Plug-and-Play support and compatibility
- Corrects calendar-related bugs
- Corrects known bugs or compatibility problems with certain hardware and software
- Adds support for newer or faster processors
In general, if your computer is incapable of using all the features of new software or hardware, you might need a BIOS upgrade.
Specific Tests to Determine Whether Your BIOS Needs an Update
To determine whether your BIOS needs to be updated because of hard drive capacity limitations, see Chapter 4, “SCSI and ATA Hard Drives and Optical Drives.”
To determine whether your BIOS needs to be updated because of operating system or CPU upgrade issues, consult the technical- support Web sites for the operating system or CPU upgrade.
Fixing BIOS Limitations—BIOS Fixes and Alternatives
Use Table 3.1 to determine which options you can follow if a BIOS update isn’t possible, depending on the BIOS problem noted.
Table 3.1 Alternatives to BIOS Upgrades
|Problem||Alternative Fix||Benefits of Alternative Fix||Limitations of Alternative Fix|