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Special Considerations
BIOS/Operating System Limitations
Hard drives greater than 2.1GB may need to be divided into multiple partitions / logical drives. MS-DOS versions
4.0 through 6.22 allow a maximum primary partition / logical drive size of 2.1GB and are limited to 8.4GB in
physical drive capacity. The file systems supported by Windows 95, Windows 98 and Windows NT are not restricted
to the 8.4GB physical drive limit, but LBA support in the system BIOS is required.
Hard drives greater than 8.4GB in capacity may be restricted to 8.4GB (or less) due to system BIOS limitations,
operating system limitations, or both. Check with your system manufacturer to determine if your BIOS supports
the correct LBA extensions for hard drives greater than 8.4GB.
Ultra ATA/66 Operation
In order to achieve the Ultra ATA/66 transfer speed, you must have a system and a BIOS that will support Ultra
ATA/66. The correct drivers must be loaded, and an Ultra ATA specific data cable must be used. The Ultra ATA
cables use the Cable Select (CS) method rather than the Drive Select (DS) master/slave scheme, so the drive must
be jumpered to enable Cable Select. Please review our application note entitled
further details.
Drive Mounting/Handling Precautions
It is highly recommended that the hard drive be mounted on to the chassis of the system being used for general
operation as well as for test purposes. Failure to hard mount the drive can result in erroneous errors during testing
or normal operation. Please review our
Warning: Never allow objects to come into direct contact with the hard drive's printed circuit board (PCB) during
operation. This could result in an electrical short and cause irreparable damage to the hard drive as well as loss of
all data. Please observe proper mounting guidelines and specifications as described above when power is applied to
the hard drive.
For Further Review:
•
ATA Configuration Card (Includes Drive Mounting)
•
ATA Installation Flowchart
•
ATA Installation Guide for Windows NT
•
ATA Installation Guide for Windows95/98
•
BIOS Support for logical cylinder values > 4095
•
DOS/Windows 95 logical drive limitations
•
Knowledge Base
•
Windows NT 4.0 Capacity Issue
•
The Ultra ATA/66 bus interface
•
Ultra ATA/66 Compatibility with Award BIOS
3 of 3
Fireball lct10
fireball_lct10_jumper.pdf
ATA Configuration Card
for specifications on drive mounting.
Ultra ATA System Requirements
for
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