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1401
Q: When I install the LBA Pro my hard drive disappears A: If that hard drive is a 540MB or larger hard drive originally recognized as around 528MB or less then the reason is not the LBA Pro. This problem is caused by the latest version of FDISK. It is a case of Microsoft creating a standard without fully thinking through the implications. They never realized that system configurations can change and hardware can be added. Briefly, the problem is as follows: The latest version of FDISK (supplied by Microsoft) supports two new partition types which are written to partition table entries on the hard disk: Type 0Eh: Same as existing
type 06h (Primary DOS), but
use BIOS INT13 extensions to
get hard disk parameters. In the spirit of trying to support the latest standards the LBA Pro supports the INT13 extensions. Some older BIOS chips do not. When you install the LBA Pro and boot the computer it looks for the INT13 extensions. If the original BIOS did not apply these extensions the LBA Pro will not recognize the drive. The real question you should be asking here is why the original BIOS does not support the INT13 extensions. We have thought of removing support for the INT13 extensions in order to solve this problem, but this functionality is a requirement to meet new standards defined by Microsoft such as the PC'97 spec. It allows the operating system to take advantage of LBA addressing on newer EIDE hard drives. The important point is that the hard disk was not partitioned and formated with the newer FDISK using a BIOS which supports the INT 13 extensions yet you are attempting to use this hard disk with a BIOS (built into the Lba Pro) which does support the INT 13 extensions. If you'd like more information on this subject, refer to the |
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