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Compatibility notes
• The ST9655 family drives conform to the ATA interface speci-
fications. The host system BIOS must provide support for the
ATA interface command set. For a detailed description of the
ATA commands implemented by these drives, see the
Sea-
gate ST9655 Family Product Manual
and the
Seagate ATA
Interface Reference Manual
.
• In accordance with ATA specifications, the system BIOS must
reset any emulation/translation parameters after a hard reset.
• In some configurations, a ST9655 family drive 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 an ST9655 family
drive. 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.
ST9655 Family Installation Guide, Rev. A 17