T r o u b l e s h o o t i n g
6/6 LS/VS 550 OWNER’S HANDBOOK
The keyboard and mouse are particularly easy to connect into the
wrong port. Although the connectors are identical, the keyboard
will not work if plugged into the mouse port, and vice versa.
The two serial ports also appear identical; if you have a problem
make sure that the cable is connected to the port you are trying to
use.
Power
Check that the AC power supply is switched on, and that the fuse
in the AC plug (if any) has not blown. If the system still does not
seem to be getting power, obtain another power cord from your
supplier.
Monitor
If there is no display check that the monitor is turned on, and the
brightness and contrast controls are not too low.
If you have fitted a new video controller expansion card and
subsequently encounter problems try disabling the on-board video
controller by removing a jumper from the motherboard. See
Appendix A,
Inside the System Unit
for more information.
Expansion cards
If an expansion card does not work, check that all internal cables are
securely connected, that the card is configured correctly, that its use
of system resources does not conflict another card or motherboard
component, and that legacy resources (if it is an ISA card) are
properly declared in the BIOS setup utility. Check also that the
software which drives or uses the card is correctly configured. Check
in Chapter 4,
Expansion Cards
for information, and in Appendix
B,
System BIOS and Setup
to see whether your chosen settings are
useable. Check also that the resources used are registered in the
BIOS.
