What
is required to run in Ultra ATA/100 Mode?
Similar to Ultra ATA/66, there are basically four requirements: - An Ultra ATA/100-capable system board and BIOS. (Ultra
ATA/100 expansion cards are also available.).
- An Ultra ATA-capable 40 pin, 80 conductor cable with the
blue (system board), black (master) and gray (slave) connectors.
- An operating system capable of DMA transfers, such as
a Windows OS.
- An Ultra ATA/100-capable device.
How
do I know if my system can support the new Ultra ATA/100 products?
Please check with your preferred motherboard manufacturer
or system manufacturer for Ultra ATA/100 support information.
Where
can I get the Seagate Ultra ATA/100 toggle utility?
The utility (UATA100d.exe)
can be downloaded from our Disc
Utilities page. The file is a self-extracting Zip archive
that must be unzipped and placed on a bootable diskette or
just a blank, floppy diskette. This version of the utility
can be used with all Ultra ATA/33, Ultra ATA/66, and Ultra
ATA/100 capable Seagate ATA hard drives.
How can I run the Ultra ATA toggle utility using Windows Millennium
(WinMe)?
Because WinMe does not offer a way to Restart in MS-DOS Mode,
you can use a WinMe Startup Disk to boot the system to the
A:\> Prompt. A WinMe Startup Disk can be made using Control
Panel-Add/Remove Programs-Startup Disk Tab-Create Disk. After
downloading and expanding the toggle utility (UATA100d.exe),
copy UATA100.exe and UATA100.txt onto the WinMe Startup Disk.
Boot to the WinMe Startup Disk and type UATA100 <enter>
at the A:\> prompt to configure the drive.
Are
the Ultra ATA/33, Ultra ATA/66 and Ultra ATA/100 interfaces
backward compatible?
All Seagate Ultra ATA/100 drives are backward compatible with
Ultra ATA/33, Ultra ATA/66, and legacy ATA interfaces. However,
due to the inability of some ATA host controllers and motherboards
to properly interface with Ultra ATA drives, Seagate suggests
using the "toggle" utility to set the Ultra ATA/100
drives to Ultra ATA/33 or Ultra ATA/66 mode for better compatibility
with a non-ATA/100 host controller or motherboard.
Will
performance be affected if I have to set an Ultra ATA/100
disc drive to a slower speed in order to maintain compatibility
with my system?
Changing the transfer mode affects only the external transfer
rate of the device. If an Ultra ATA/100 device is configured
for a slower transfer mode, its maximum speed will of course
be limited to the maximum burst transfer rate of that mode.
However, the internal performance is not affected by the external
transfer mode, therefore the sustained transfer rate will
not be as drastically affected as the maximum (burst) transfer
rate.
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