Technical information

2/6 LS PRO OWNER'S HANDBOOK
Getting Started
Chapter 2
If POST detects a hardware fault, one or more error messages
are displayed. You may also be prompted to “Press the F1 key
to continue.” Your first action should be to turn off the
computer, wait at least 30 seconds, and then turn it on again
to see if the error is transient or persistent. Persistent POST
errors may indicate a fault in your system. If you press F1, the
computer attempts to continue despite the error indication
(for example, if a memory chip fails POST, the computer can
continue with less memory). If the problem persists, make a
note of the error messages, and consult your supplier or
authorized maintainer.
Beep codes
The computer uses special audio beep codes to signal certain
hardware faults. If you hear a beep code which is not
accompanied by a POST error message, call your supplier or
authorized maintainer.
The boot sequence
Provided that POST succeeds without discovering any serious
errors or configuration discrepancies, the computer attempts
to find an operating system; that is, it attempts to boot. There
are three possibilities it may try: a system diskette, a bootable
hard disk partition, or remote booting.
System diskette
A system diskette is a diskette bearing at least the rudiments of an
operating system. If the computer finds such a diskette in the
diskette drive, it will boot from it. If it finds a non-system diskette,
the computer invites you to replace it and press the F1 key.
The BIOS Setup utility can be used to disable booting from a
system diskette.
Hard disk partition
The computer will try its hard disk if it can’t find a system
diskette. A hard disk may contain more than one bootable