T r o u b l e s h o o t i n g
OWNER’S HANDBOOK 8/3
another system diskette, if possible. Make sure that a boot
device is correctly specified with the BIOS Setup utility. If the
problem persists contact your supplier or authorised
maintainer.
Common problems
If you encounter a problem with the computer the following
sections suggest checks to make before you alert your supplier,
authorised maintainer or support organisation. The checks listed
cover the causes of common problems.
Connections
Check that all power and signal cables are securely connected to the
correct port on the computer.
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.
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 the
Motherboard Features & Upgrades
chapter for more information.
Mouse
If the screen cursor moves jerkily, the ball inside the mouse may
require cleaning. Open the base of the mouse can clean the ball in
water mixed with a small amount of mild detergent. Clean any
