User`s guide

Locating a Problem Chapter Eight - Troubleshooting
135
8. If the computer is too close to a wall, a cable connection may be loose or the
cables may be crimped.
9. When you are certain that you have power available and all connections are
good, turn the computer on again.
If the computer still does not start, you may have a hardware problem.
N
OTE
: Do not substitute cables for different devices (other than the manufacturer
recommended cables) even if they look exactly alike. The wiring inside the cable
may be different.
Power On Self Test
The Power-On Self Test (POST) runs every time you turn on or reset the TREK 2.
The POST checks memory, the main system board, the display, the keyboard, the
disk drives, and other installed options.
A few seconds after you turn on your computer, a copyright message appears on
your display screen. A memory test message appears next; as the test continues,
memory size increases until all installed memory is tested. Normally, the only test
routine visible on the screen will be the memory test.
Two classifications of malfunctions can be detected during the POST:
•
Error messages that indicate a failure with either the hardware, the
software, or the Basic Input/Output System (BIOS). These critical
malfunctions prevent the computer from operating at all or could cause
incorrect and apparent results. An example of a critical error is
microprocessor malfunction.
•
Messages that furnish important information on the power-on and boot
processes (such as memory status). These non-critical malfunctions are
those that cause incorrect results that may not be readily apparent. An
example of a non-critical error would be a memory chip failure.
Fax/Modem Problems
This section describes some of the common problems you may encounter while
using your modem. If you can not resolve your difficulty after reading this chapter,
contact your dealer or vendor for assistance.
Modem does not respond to commands
1. Make sure the modem is not configured with a conflicting COM port and IRQ
setting. Your modem can not be configured as COM1 if another device in your
system is also configured as COM1. Similarly, IRQ settings may not overlap.