Mounting the drive
You can mount (and operate) a ST9235 family drive 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 (except: 0.190 inches
(4.82 mm) for the bottom-mounting holes of the ST9235A and
ST9235AG).
•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 ST9235 family drives are
provided in Appendix B. As shown in these drawings, some
ST9235 family drives conform to the industry standard MCC
mounting specification. Refer to the

ST9235 Family Product

Manual

(Seagate publication 36206-001) for further details.
Configuring system BIOS
Before the host system can recognize a new drive, you must
enter 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
ST9235 family drives. It is not necessary 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
ST9235 Family Installation Guide, Rev. B 5