Hard Disk Subsystem; Floppy Diskette Drive Subsystem; Pcmcia Subsystem - Texas Instruments Extensa 450 Series Maintenance Manual

4.2.3.1
On the Extensa 450, the external VGA port is provided by the port adaptor fixture
in the form of a 15-pin, female, D-type connector which can be used to drive an
external CRT (standard VGA modes with resolutions of 800 X 600 X 256, or 640 X
480 X 256 ).
4.2.4
The Hard Disk Subsystem, controlled by the IDE interface compatible NS87334
VJG Super I/O Controller on the Main Board, provides disk storage for all system
software and user files. Initially, the 450 Series Notebooks are equipped with a 340
Million Byte hard drive. However, the onboard controller can support high capacity
drives.
During the manufacturing process, Texas Instruments formats the hard disk and
then loads all supplied software including Windows 95.
c
Caution: Formatting the disk drive erases any data that may be stored
on the disk. Therefore do not attempt a format of the hard disk unless
the computer self-test and diagnostics confirm that the disk has not
been formatted.
A Hard Drive activity LED is located along the front edge of the notebook. This LED
lights during hard driver read/write accesses.
c
Caution: The notebook should not be moved when the HDD LED is lit to
prevent accidental damage to the hard drive.
4.2.5
The Floppy Diskette Drive Subsystem consists of a Floppy Controller and the Floppy
Diskette Drive. The Floppy Diskette Drive can read/write standard 3.5-inch
minidiskettes.
4.2.6
The notebook is equipped with an on-board PCMCIA host adapter (CL-PD6722
PCMCIA Controller) and sockets to support one Type I or Type II option or a Type III
option if the Floppy Drive is removed from the unit. The PCMCIA Controller has the
following features:
Single-chip PCMCIA host adapters
External VGA Drive Capability

Hard Disk Subsystem

Floppy Diskette Drive Subsystem

PCMCIA Subsystem

Theory 4-7