Mounting the drive
You may mount (and operate) the ST9100A and ST9100AG in
any orientation. However, you must securely attach the drive to
a rigid frame using four side-mounting screws or four bottom-
mounting screws.
Caution. To avoid damaging the drive:
•Use M3X0.5

metric

mounting screws

only

.
•Do not insert mounting screws more than 0.150 inches
(3.81 mm) into the mounting holes.
•Do

not

overtighten the screws (maximum torque: 3 inch-lb).
Allow a minimum clearance of 0.030 inches (0.762 mm) around
the entire perimeter of the drive for cooling airflow.
Mounting dimension drawings for the ST9100 drives are provided
in Appendix B. Most ST9100A and all ST9100AG drives conform
to the industry-standard MCC mounting specification. Refer to
the

ST9100A and ST9100AG Product Manual

(Seagate Publica-
tion 36211-001) for details.
Configuring system BIOS
Before the host system can recognize a new drive, it must be
provided with basic information about the drive into the host
system BIOS. Specifically, you need to know the number of
cylinders, heads, and sectors, as well as the overall capacity of
the drive you are installing. The table on page 6 lists these
specifications for the ST9100A and ST9100AG. It is not neces-
sary to understand these terms to set up the system BIOS.
Read your system documentation or run your system setup
program (described on the following page) to determine which
drive types your BIOS supports. Another method is to run the
FINDTYPE.EXE utility program, available from Seagate Techni-
ST9100A and ST9100AG Installation Guide, Rev. A 5