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Compatibility notes
• The Marathon 420sl conforms to the ATA interface specifica-
tions. The host system BIOS must provide support for the ATA
interface command set. For a detailed description of the ATA
commands implemented by this drive, see the
Seagate Mara-
thon 420sl Product Manual
and the
Draft Proposed ATA-2
Standard
.
• In accordance with ATA specifications, the system BIOS must
reset any emulation/translation parameters after a hard reset.
• In some configurations, a Marathon 420sl may supply up to
16 bytes of error correction code (ECC) with the Read Long
and Write Long commands. Depending on the drive type, your
system BIOS may look for 4 bytes of ECC. If your system
BIOS expects 4 bytes of ECC and the drive supplies a different
number of bytes, some drive diagnostic programs may fail,
typically resulting in time-out errors. Consult your computer
documentation or call your computer dealer or manufacturer
for information on configuring your computer to receive more
than 4 bytes of ECC.
• Some older drive diagnostic programs may incorrectly report
an ECC-detection failure when analyzing a Marathon 420sl.
This occurs because the drive hardware corrects the data
automatically, avoiding the error rather than reporting it. Such
a report does not indicate a drive malfunction.
Marathon 420sl Installation Guide, August 1995 17